DAILY GRAPES

As The World Turns…

Over the years, gardening has made me more and more aware of our planet’s annual track around the sun. How quaint. It gives me a certain kinship with the peasants at work in the 15th century painting for the month of September of Les Très Riches Heures de Duc de Berry.

Picking grapes, 15th and 21st century

Picking grapes, 15th and 21st century

As with those peasants, September is a month when I have abundant fruits for harvest. Like the peasants, I’m harvesting grapes; it’s been a bumper year. Unlike the peasants, my grapes are destined for fresh eating rather than being sullied by fermentation into wine. (Okay, okay, just kidding, although I am not a fan of drinking wine.)

First to ripen here were the varieties Somerset Seedless and Alden. With an abundance of varieties and fruits, I can afford to be picky, so this will be the last season here for Somerset Seedless. It’s too prone to pest problems and the fruit never loses enough of its tannin-y taste for my palate.

Alden grape

Alden grape

Alden is also threatened with my saw and shovel because it bears lightly and is also plagued with pest problems. But excellent taste and texture make it worth keeping.

Following on the heals of those earlier varieties are Swenson Red, Lorelei, Glenora, and Vanessa. The latter two are very good but would not be worth keeping if they weren’t seedless. In my experience, the most flavorful grapes are those with seeds. Swenson’s Red is a variety that pretty much everyone loves. They’d also love Lorelei if they got to taste this not very common variety.

Finally come Edelweiss, Wapanuka, Brianna, and, bearing for the first time, Cayuga White. The first three are not yet quite ripe. Even at this stage, they are delectable. Cayuga White is still proving itself, or not.

Edelweiss grape

Edelweiss

Looking to the future, newly planted Bluebell, Alpenglow, and Dr. Goode should yield a few berries next year. Also an unknown variety that I propagated from an old vine growing at a friend’s Orchard.

With their bold flavors, you’re not likely to find any of the varieties I mentioned at a supermarket, possibly even a farmer’s market. Plant them!

Variety Choices

A few caveats: The Wallkill River Valley, site of my farmden, is far from ideal for fruit growing. As a valley, it’s colder than surrounding land (zone 5) and is laden with damper air that encourages disease. An abundance of wild grapevines in the bordering 6000 acres of forest provides a place for insects and disease to get their start.

Nonetheless, I get good crops without resorting to sprays. This is possible by providing a sunny site with good air circulation and making the best of it with trellises, and — very important — annual pruning. Also by choosing varieties to plant based on pest, disease, and cold resistance. 

Many grape varieties are hybrids of European and American species, the Europeans chosen for their flavor (flavor, that is, from a Eurocentric perspective), the Americans for their toughness to pests and more rigorous growing conditions. American varieties have a unique flavor, called foxiness and typified by that of Concord, as well as a slip skin. European varieties are sweet with a crunchy texture.

As far as flavor and texture, varieties span the spectrum from those that are more like European grapes to those more like American grapes. My final, but very important, consideration in choosing a variety is flavor, and I mostly prefer the flavors of varieties toward the American end of the spectrum.

Of course, the choice widens for grape enthusiasts in more Mediterranean climates, where European varieties can also be grown, and in the Southeast, where the native muscadine grapes grow wild and are cultivated.

Bagging, for Pests

Many birds and insects, especially yellow jackets and European hornets, also enjoy my grapes. They leave plenty for me, but crucial to harvesting the best of the best tasting grapes here is bagging.

Years ago I figured that the longer a bunch of grapes hangs on the plant, the tastier it gets (to a point), but also the more chance of attack by insects and birds. So I bought 1000 bakery bags that happened to have “Wholesome Fresh Delicious Baked Goods” printed on them. Paper bagged grapesPerhaps the label made the bags even less attractive to grape-hungry birds and insects; at any rate, they worked very well, usually yielding almost 100 late harvest, delectably sweet and flavorful, perfect bunches of bagged grapes each year.

This year, I thought organza bags might work well. Bagged grapes, organzaOrganza is an open weave fabric often made from synthetic fiber. Small organza bags typically enclose wedding favors; the bags come in many sizes. Organza bags have the advantage over paper bags of letting in more light. A mere pull of the two drawstrings makes bagging the fruit very easy; paper bags involve cutting, folding, and stapling. Organza bags also re-usable. (The bags also work well with apples which, in contrast to grapes, require sunlight to color up.)

In the15th century painting, peasants just pile bunches of their grapes into large, wooden tubs. I gently set only enough bunches for immediate consumption into a woven basket. Different methods, but we’re all tuned to the progress of our planet around its sun.

More details about growing grapes — and lots of other fruits — in my book Grow Fruit Naturally.Apples, bagged with organza

SOMETHING A LITTLE DIFFERENT, IN FRUIT

(Adapted from my book Uncommon Fruits for Every Garden, now out of print but very soon available as online version. Stay tuned. Information is also available in my books Grow Fruit Naturally and Landscaping with Fruit, available from my website and the usual sources.)

I always know when my hardy kiwifruits are ripe because my dogs and ducks start grubbing around beneath the vines for drops. The fruits, for those unfamiliar with them, are similar to the fuzzy kiwifruits (Actinidia deliciosa) of our markets, only much better for a number of reasons.

Obviously, from the name, hardiness is one reason. Hardy kiwifruits will laugh off cold below even minus twenty-five degrees Fahrenheit, while market kiwis are injured below zero degrees Fahrenheit.
Kiwi fruits compared
Another difference is in the fruit itself. Hardy kiwifruits are grape-size, with smooth, edible skins. Pop them into you mouth just as with grapes. Within the skin, hardy kiwifruits look just like market kiwis, in miniature. The flavor of hardy kiwifruits, though, is far superior to that of the fuzzies, sweeter and with more aroma.

Okay, I have to qualify that last statement because there are actually two different species of fuzzy kiwifruits. A. chinensis, rarely seen for sale outside China, is relatively large (though usually not as large as A. deliciosa) with skin covered by only a peach-like fuzz. The flesh color ranges from green to yellow, on some plants even red, in the center. The flavor is very sweet and aromatic, smooth and somewhat tropical, reminiscent of muskmelon, tangerine, or strawberry. In all honesty, this kiwifruit has the best flavor of all — but it’s even less cold hardy than the more common fuzzy, market kiwifruit. If winter temperatures here were mild enough for me to grow A. chinensis, I would.

Two Species, One Flavor

Hardy kiwifruits also come in two species: A. kolomikta and A. arguta. But not two flavors; they taste pretty much the same.

Both are ornamental vines, so much so that they were originally introduced into this country from Asia over 100 years ago strictly for their beauty, their innocuous fruits overlooked. How many visitors pass beneath the many handsome vines planted early in the twentieth century on public and private estates, unaware of the delectable fruits also hidden beneath the foliage?

For most kiwifruits, male and female flowers are borne on separate plants. Only the females bear fruit, but males are needed for pollen to get that fruit to form. (Just like humans and most animals, the “fruit” in animals being the ovary responding to fertilization.) One male (kiwi plant) can sire up to about eight females.

The two species of hardy kiwifruits do have their differences. The one that’s ripe for me now is A. kolomikta, which I choose to call the super-hardy kiwifruit because it’s cold-hardy to below minus forty degrees F. (For a pleasant dance of your tongue, sound out and speak the species name slowly.) Kolomikta is the more strikingly ornamental of the two because of the pink and silvery variegation of its leaves. Kolomikta bloom and leavesThis species is also relatively sedate in growth, so is easier to manage. One problem with this fruit, which my ducks and dogs consider a plus, is that it drops when it is ripe, perhaps because it’s ripening so quickly during hot days of summer.

The other species, A. arguta, is more sedately ornamental, with apple-green leaves attached to the vines on reddish leaf stalks. Fruits of this species, depending on the variety, start ripening in the middle of September, and they stay firmly attached. One problem with A. arguta, mostly for casual growers, is that it’s much less sedate in growth. My vines send out a number of 10 foot long canes every year.

Must You Prune?

Pruning keeps either species productive and within bounds. Containing the plant is especially important with A. arguta. A number of years ago, I gifted two plants to a friend. He planted them at the base of a sturdy arbor that was attached to his front door. I’m not sure he ever pruned the plant, and 15 years later the arbor was on the ground.

Still, either species grows best trained to some sort of structure. Mine, which are grown mostly for fruit, are trained on a series of T-shaped posts fifteen feet apart and joined at their cross-members by five equally spaced wires.Actinidia pruned Each plant’s strongest shoot has been trained to become a trunk that reaches the center wire, then bifurcates into two permanent arms, called cordons, running in opposite directions along the center wire.

Fruiting canes grow off perpendicularly to the center wire and drape over the outside wires. Flowers and, hence, fruits are borne only toward the bases of shoots of the current season that grow from the previous year’s canes, very similarly to grape vines.

Annual winter pruning entails, first, pruning off any new shoots forming anywhere along or at the base of the trunk, and shortening cordons once they have reached full length. Fruiting arms give rise to laterals that fruit at their bases; during each dormant season, cut these laterals back to about eighteen inches in length. Remaining buds on the laterals will grow into shoots that fruit at their bases the following summer. The winter after they have fruited, these shoots correspondingly should be shortened to about eighteen inches, but leave only one of these. When a fruiting arm with its lateral, sublateral, and subsublateral shoots is two or three years old, it’s cut away to make room for a new fruiting arm. 
Actinidia pruning diagram
With all this said, the vines do fruit with no more pruning than a yearly, undisciplined whacking away aimed at keeping them in bounds. Such was the objective in pruning those hardy kiwifruits planted as ornamentals on old estates. These vines happily and haphazardly clothe pergolas with their small, green fruits hanging—not always easily accessible or in prodigious quantity—beneath the leaves.

Note to plant nativists: I am aware that Actinidia species are considered to be non-native invasives in many areas. I’ve grown and watched this plant for decades and have never found it growing anywhere but where I planted it. As far as I can tell, the only way this plant can spread would be for it to be planted near enough to tree stands to give the vine leg up and then to be totally neglected. I have never seen a self-sown seedling pop up anywhere.
Actinidia and bench

OF COMPOST, MICROWAVES, AND BLUEBERRIES

Manure Unnecessary

Manure or not, it’s compost time. I like to make enough compost through summer so that it can get cooking before autumn’s cold weather sets in. Come spring, I give the pile one turn and by the midsummer the black gold is ready to slather onto vegetable beds or beneath choice trees and shrubs.

I haven’t gotten around to getting some manure for awhile so I just went ahead this morning and started building a new pile without manure. It’s true: You do not need manure to make compost. Any pile of organic materials will decompose into compost given enough time.
Compost bins
My piles are a little more deliberate than mere heaps of organic materials. For one thing, everything goes into square bins each about 4′ on a side and built up, along with the materials within, Lincoln-log style from notched 1 x 6 manufactured wood decking. Another nice feature of this system is that the compost is easy to pitchfork out of the pile as sidewalls are removed with the lowering compost.

My main compost ingredient is hay that I scythe from an adjoining field. As this material is layered and watered into the bin it also gets sprinkled regularly with some soil and limestone. Soil adds some bulk to the finished material. The limestone adds alkalinity to offset the naturally increasing acidity of many soils here in the Northeast. Into the pile also goes any and all garden and kitchen refuse whenever available.
Hay for composting
What manure adds to a compost pile is bedding, usually straw or wood shavings, and what comes out of the rear end of the animal. The latter is useful for providing nitrogen to balance out the high carbon content of older plant material in the compost, such as my hay.

But manure isn’t the only possible source of nitrogen. Young, green, lush plants are also high in nitrogen, as are kitchen trimmings, hair, and feathers. Soybean meal, or some other seed meal, is another convenient source.

Compost piles fed mostly kitchen trimmings or young plants benefit from high carbon materials. Otherwise, these piles become too aromatic, not positively.

As I wrote above, “Any pile of organic materials will decompose into compost given enough time.” Nitrogen speeds up decomposition of high carbon compost piles, enough to shoot temperatures in the innards of the pile to 150° or higher. All that heat isn’t absolutely necessary but does kill off most pests, including weed seeds, quicker than slow cooking compost piles.Smelling compost

Plus, it’s fun nurturing my compost pets, the microorganisms that enjoy life within a compost pile.

Novel Use for Microwave

I bought my first (and only) microwave oven a few years ago ($25 on craigslist) and have cooked up many batches of soil in it. You thought I was going to use it to cook food? Nah.

Usually, I don’t cook my potting soils, which I make by mixing equal parts sifted compost, garden soil, peat moss, and perlite, with a little soybean meal for some extra nitrogen. I avoid disease problems, such as damping off of seedlings, with careful watering and good light and air circulation rather than by sterilizing my potting soils.

Peat, perlite, soil, and compost

Peat, perlite, soil, and compost

Recently, however, too many weeds have been sprouting in my potting soil. Because my compost generally gets hot enough to snuff out weed seeds and because peat and perlite are naturally weed-free, these ingredients aren’t causing the problem. Garden soil in the mix is the major source of weeds.

So I cook up batches of garden soil, using the hi setting of the microwave oven for 20 minutes. My goal is to get the temperature up to about 180 degrees F., which does NOT sterilize the soil, but does pasteurize it. Overheating soil leads to release of ammonia and manganese, either of which can be toxic to plants. Sterilizing it also would leave a clean slate on which any microorganism, good or bad, could have a field day. Pasteurizing the soil, rather than sterilizing it, leaves some good guys around to fend off nefarious invaders.

After the soil cools, I add it to the other ingredients, mix everything up thoroughly, and shake and rub it through ½ inch hardware cloth mounted in a frame of two-by-fours. This mix provides a good home for the roots of all my plants, everything from my lettuce seedlings to large potted fig trees.

Blueberry Webinar

Blueberries, as usual, are bearing heavily this year, with over 60 quarts already  in the freezer and almost half that amount in our bellies. After years of growing this native fruit, it has never failed me, despite some seasons of too little rain, some of too much rain, late frost, or other traumas suffered by fruit crops generally.

All of which leads up to my invitation to you to come (virtually) to my upcoming Blueberry Workshop webinar. This webinar will cover everything from choosing plants to planting to the two important keys to success with blueberries, pests, harvest, and preservation. And, of course, there will be opportunity for questions. For more and updated information, keep and eye on www.leereich.com/workshops, the “workshops” page of my website.
Bunch of blueberries

BERRIES & ASPARAGUS REDUX

Berry Enticing

Berries are making it harder to get things done around here. Not because they are so much trouble to grow, but because I’ve planted them here, there, and everywhere. Wherever I walk I seem to come upon a berry bush. Who can resist stopping to graze? This year is a particular bountiful year for berries.

I can’t even walk to my mailbox without being confronted. First, there are lowbush blueberries hanging ripe for the picking over the stone wall bordering the path from the front door. Lowbush blueberries along pathThe wall supports the bed of them planted along with lingonberries, mountain laurels, and rhododendrons. These plants are grouped together because they are in the Heath Family, Ericaceae, all of which demand similar and rather unique soil conditions. That is, high acidity (pH 4 to 5.5), consistent moisture, good aeration, low fertility, and an abundance of soil organic matter. The small blueberries send me back to many summers ago in Maine when a very young me hiked in the White Mountains and picked these berries from plants growing amongst sun-drenched boulders. Care needed: mulching in autumn, and cutting a portion of the planting to the ground with a hedge trimmer every second or third winter.

A few feet further the path ends and I come to the driveway, and here’s a 50 foot long hedge of Nanking cherries (berry size, but a drupe fruit, not a berry), whose season is almost over. For the past few weeks the stems were so solidly clothed in cherries that you could hardly see the branches. The cherries have a very refreshing flavor on the spectrum between that of sweet and tart cherries. Care needed: winter pruning — very nonexacting — to keep the bushes from growing too large.
Nanking cherry fruits
Perhaps later, once back in the house, I’ve got to walk out the back door to the compost pile. Hmmm. Gooseberry plants are enticing me with their stems that are arching to the ground under their weight of berries. Can’t pick a little from just one plant. I’ve got to eat a few of each of the over dozen varieties. My favorites? Hinnonmaki Yellow, Poorman, Black Satin, Red Jacket, and Captivator. 

Poorman gooseberry

Poorman gooseberry

It’s a funny thing about gooseberries. If I pick a bowl of the berries and then bring them indoors to eat, they don’t taste as good as the one’s eaten bushside. It’s not just me; Edward Bunyard, in his 1929 book The Anatomy Of Dessert, wrote that the “Gooseberry is of course the fruit par excellence for ambulant consumption.”

Care needed: winter pruning to get rid of the very oldest stems and make way for younger ones; and to reduce the number of newest stems if they are overly abundant.

Okay, I finally made it to the compost pile. Now to check what’s going on in the greenhouse. Uh oh, I have to walk past black currants, one of my favorite fruits and now at their peak flavor. Their flavor is intense, intensely delicious to me. I grow mostly the variety Belaruskaja, which has just the right amount of sweetness to balance its almost resin-y flavor. Care needed: annual winter lopping to the ground of all two-year-old and some one-year-old stems.
Belaruskaja black currants
And right next to the black currants are black raspberries, also now at their peak flavor. The heavy crop of berries are arching some of the longest stems within reach of our ducks. I can share a few berries with them. Black raspberries grow wild all over the place in much of this part of the country. Wild ones are good. I prefer the named variety, Niwot, that I planted because it is one of two varieties that can bear two crops each season. For fruit size, flavor, and abundance, it’s worth growing even for just its summer crop. Care needed: summer pinching of tips of new stems to induce branching; winter pruning to cut away all two-year-old stems and thin out one-year-old stems, and to shorten branches to 18 inches; and tying stems to posts to hold them up.
Black raspberry fruit
Finally, I make it to the greenhouse. Leaving it, I’m confronted with two mulberry trees, the variety Illinois Everbearing and the variety Oscar (what a funny name for a fruit tree). No danger of the mulberries delaying my progress because I know that the birds are taking all of them. Illinois Everbearing, true to its name, will continue to bear into August. Perhaps by then the birds will tire of them or move on to other fruits, leaving some for me.

One more enticement, one of the best, before going back indoors — Fallgold raspberry. Fallgold raspberryThis variety, carrying genes of some species of Asian raspberry, has a sweet, delicate flavor unlike any other variety. Physically, the berries are similarly sweet and delicate, a pale, pinkish yellow. Their fragility makes them a poor commercial fruit so you won’t see them for sale. Grow them.

Asparagus Cutting?

Seems like last week’s blog post about my method for reducing weeds in the asparagus patch caused a lot of confusion. I wrote that I cut down all the spears before applying compost and wood chips, and many people thought that was not supposed to be done until autumn.

During the harvest season, which here is from the time the spears first show until the end of June, the spears are constantly being cut down for eating. All are regularly cut, even those too spindly for eating. Doing so helps starve out asparagus beetles, which are gone by July.

So consider my final, early July lopping back of any and all spears just like a final harvest. From then on, spears are left grow to their heart’s content, fueling the roots for next year’s spring and early summer harvest. The bed gets its final cutting down in autumn, when the ferns yellow to indicate that they’re no longer feeding the roots.
Asparagus growing through mulch
I was a little nervous about the compost plus wood chip smothering asparagus plants in addition to weeds. Not to worry. It’s a few days after the treatment and some fronds are already a few feet high. And so far, no weeds.

More details about growing and use of berry (and other) fruit plants can be found in my books Grow Fruit Naturally and Landscaping with Fruit.

GOOD BERRIES, BAD(?) BERRIES

Sad, Then Happy

A sad day here on the farmden: the end of blueberry season. Frozen blueberries, that is. Seventy quarts went into the freezer last summer, and a lot more than that into bellies, and now they’re all finished.

A happy day here on the farmden: the first of this season’s blueberries are ripening. These blueberries, and those that were in the freezer, are the large “highbush” (Vaccinium corymbosum) varieties commonly found fresh on market shelves. Also ripening now are “lowbush” (V. angustifolium) blueberries, growing as a decorative, edible ground cover on the east-facing slope near my home.
Blueberries ripening
I’ve said it before but I’ll say it again. After many, many years of growing fruits in my not-particularly-good-for-fruit-growing site, blueberries — a native fruit — have always yielded well. Two most important things are adapting the soil to blueberries’ unique requirements, and keeping birds at bay. Birds at bay? Best is a walk-in, netted area.
Blueberry, netted
Soil for blueberries needs to be very acidic, with a pH between 4 and 5.5, made so, if needed, with the addition of sulfur, a naturally mined mineral. The pelletized form is best because it’s not dusty. Blueberry roots need good drainage and consistent moisture. They thrive in ground rich in organic matter, maintained with an annual three-inch topping of some weed-free, organic material such as wood shavings, wood chips, straw, pine needles, and autumn leaves.

(That’s the bare bones for success with blueberries. For a deeper dive into growing this healthful, delicious, reliable fruit, stay tuned for my soon-to-be-aired blueberry webinar.)

And More Berry-Like Fruits Coming Along

Just as last year’s apples were losing their crispness and tang and I needed a change from oranges, other berries, in addition to blueberries have started changing color, softening, and turning flavorful.

Black currants are another one of my favorites now ripening. They admittedly have an intense flavor not to everyone’s liking. But everyone likes black currants conjured up into juices, pastries, or jam. Variety matters. My favorites are Belaruskaja, Minaj Smyrev, and Titania. 
Belaruskaja black currants
Don’t think black currants taste anything like “dried” or “Zante” currants. Those are raisins, originally made from “Black Corinth” grapes, a name then bastardized to “black currant.”

Like blueberries, black currants are easy to grow. But they have no special soil requirements, they fruit well even in some shade, and deer rarely eat the bushes, and birds rarely eat the berries.

Another tasty morsel now ripe is gumi (Elaeagnus multiflora). Birds usually strip this shrub clean of fruit, except this year the crop is so abundant that neither I nor the birds can make much of a dent in it. The berries are a little astringent if not dead ripe. And not at all if the fruit is processed; last year I cooked them slightly, strained out the seeds (which are edible), and blended it before drying it into a “leather.”
Gumi fruit
The gumi shrub itself has silver leaves, providing an attractive backdrop for the red fruits. The flowers are extremely fragrant, and the roots enrich the soil by taking nitrogen from the air (with the help of an actinomycete microorganism.)

Also now abundant, with plenty for all, is Nanking cherry (Prunus tomentosa), a favorite of mine for beauty and easy-to-grow cherries. The cherries are small, usually no larger than about 3/8 inch. But the single pit is also small. Flavor lies somewhere on the spectrum between sweet and sour cherries, very refreshing especially when chilled.

Nanking cherry fruit and bloom

Nanking cherry fruit and bloom

Another Chance, and Then Another

All is not rosy in the berry-size fruit world. Over the years, I had heard about and tried a new fruit in town, edible honeysuckles. In the past, the plants I tried either died over winter or bore very few, very mediocre berries. Since then, edible honeysuckles have come up in the world, with serious breeding work, and I was given the opportunity to try them again. (As Maria Schinz said, “Gardening is an exercise in optimism.”)

But first, what is an edible honeysuckle, which now goes under better names. If called “honeyberry,” it usually refers to Russian species such as Lonicera caerulea app. kamtshatica or edulis. Haskap is a Japanese name applied the Japanese species L. caerulea spp. emphylocalyx, or to hybrids of this species with Russian species. Pure Japanese species varieties are sometimes called Yezberry, after the Island of Hokkaido, called Yez or Yezo Island where they are found. The Japanese species and hybrids are less susceptible to spring frosts than the honeyberries.

This spring I planted out two Yezberry varieties, Solo and Sugar Mountain Blue. The small, blue berries ripen early, and I was eager to give this fruit another try. Solo is bearing. The taste? Awful! Sour, with no other flavor.

Solo yezberry

Solo yezberry

But I’m not abandoning edible honeysuckles. I’ve learned that the berries need to hang on the branches for a long time before developing full flavor and sweetness. A number of varieties are available, some of which are, according to others, “Delicious when eaten fresh from the plant” and “a bit like a cross between a raspberry and a blueberry. . . sweetness of a raspberry with a hint of pleasant tartness.” Really?!

Many blue berries are still hanging on my Solo bush. I’ll leave them to hang longer there and perhaps morph from “awful” to “delicious,” and will report back. I have hope for this new fruit, not yet high hopes.

At the very least, honeyberries or haskaps might be able to tide me over from the end of frozen blueberries to the first of fresh blueberries.

PRUNING FOR BEAUTY, FUN, AND FLAVOR

Yew Love

Mundane as she may be, I love yew (not mispelled, but the common name for Taxus species, incidentally vocalized just like “you”). Hardy, green year ‘round, long-lived, and available in many shapes and sizes, what’s not to love? Perhaps that it’s so commonly planted, pruned in dot-dash designs to grace the foundations in front of so many homes.

Still, I love her. For one thing, Robin Hood’s bow was fashioned from a yew branch (English yew, T. baccata, in this case). Two other species — Pacific yew (T. brevifolia) and Canadian yew (T. canadensis) — are sources of taxol, and anti-cancer drug.
Yew berries
At a very young age, I became intimate with yew bushes surrounding our home’s front stoop, on which my brother and I would often play. Yew’s red berries, with an exposed dark seed in each of their centers, would give the effect of being stared at by so many eyes. Sometimes we’d squish out the red juice, carefully though, because we were repeatedly reminded that all parts of the plant are poisonous. (I’ve since learned that the red berries are not poisonous; but  other parts of the plant, including the seed within each red berry are poisonous.)

If yew has, for me, one major fault, it’s that deer eat it like candy. Interesting, since grazing on yew can kill a cow or a horse.

Mostly, I love yew because she takes to any and all types of pruning. My father once had a very overgrown yew hedge threatening to envelope his terrace. I suggested cutting the whole hedge down to stumps. Following an anxious few weeks when I thought my suggestion perhaps overly bold, green sprouts began to appear along the stump. A few years later the hedge was dense with leaves, and within bounds.

Although usually pruned as a bush, yew can be pruned as a tree. A trunk, once exposed and developed, has a pretty, reddish color. Deer sometimes take care of this job, chomping off all the stems they can reach to create a high-headed plant with a clear trunk. 

As an alternative to being pruned to dot-dash spheres and boxes, yew hedges can be pruned to fanciful shapes, including animals, or “cloud pruned” (niwaki, the Japanese method of pruning to cloud shapes). Many years ago, I followed the herd and planted some yews along the front foundation of my house, pruning them to one long dash. No dots.
Yew caterpillar
Since then, I’ve converted that hedge to a giant caterpillar and, more recently, tired of the caterpillar and attempted to cloud prune it, not with great success so far. (It’s my shortcoming as a sculptor, not the plant’s fault.) The goal in this case is not the kind of cloud pruning with clouds as balls of greenery perched on the ends of stems. My goal is to blend the four plants together as one billowy, soft cloud.

Facing my kitchen window is another yew, a large one that was planted way before I got here. Its previous caretaker, and up to recently I, have maintained it as a large, rounded cone. Last year I decided to make that rounded cone more interesting, copying a topiary in Britain. The design is in its early stages, awaiting some new growth this year to fill in bare stems now showing in interior of the bush.
Yew topiary in progress

Not Too Late for Peaches

Moving on to more pragmatic pruning . . . peaches. No, it’s not too late. In fact, the ideal time to prune a peach tree is around bloom time, when healing is quick. This limits the chance of stem diseases, to which peaches are susceptible.

Peach tree, before pruning

Peach tree, before pruning

Peach trees need to be pruned more severely than other fruit trees. As with other fruit trees, the goals are to avoid branch congestion so remaining branches can be bathed in light and air, to plan for future harvests, and to reduce the crop — yes, you read that right — so that more energy and better quality can be pumped into remaining fruits.

To begin, I approached my tree, loppers and pruning saw in hand, for some Sawing peach limbmajor cuts aimed at keeping the tree open to light and air.

Peaches bear each season’s fruits on stems that grew the previous season. So next, with pruning shears, possibly the lopper, in hand, I went over the tree and shortened some stems. This coaxes buds along those stems to grow into new stems on which to hang next year’s peaches.
Shortening peach branch
And finally, I went over the tree with pruning shears, clipping off dead twigs as well as weak, downward growing stems. They can’t support large, juicy, sweet fruits.

Done. I stepped back and admired my work.
Peach tree after pruningAnd, of course, for more about pruning, there’s my book, The Pruning Book.

Spring: A Manic Time in the Garden

The Season’s Ups and Downs

To me, spring can be a manic time of year. On the one hand, no tree is more beautiful or festive than a peach tree loaded with pink blossoms. I’d say almost the same for apples, pears, and plums, their branches laden with clusters of white blossoms.
Peach tree in bloom
And it’s such a hopeful season. If all goes well, those blossoms will morph, in coming months, into such delicacies as Hudson’s Golden Gem and Pitmaston Pineapple apples, and Magness, Seckel, and Concorde pears. My peach tree was grown from seed, so has no name. With all this beauty and anticipation, I can periodically forget the pandemic that’s raging beyond my little world here.

But even as my eyes feast on the scene and I forget about the pandemic, I can’t forget about the weather’s ups and downs. Specifically, the temperature: Frosty weather has the potential to turn blossoms to mush and ruin the chances for fruit. Especially on my farmden, here in the Wallkill River valley. As in other low-lying locations, on clear, cold nights, a temperature inversion occurs, with heat radiated to the clear sky making ground level temperatures low. Cold air is denser than warmer air, so all the cold air flows down slopes to collect in valleys.

There’s not much to do to avert that frost damage. A blanket thrown over a tree would help but my trees are too large and too many. Branches could be sprayed with water; water, in transitioning to ice, releases its heat of fusion as long as it’s continuously applied. A helicopter or a “wind machine” could dilute colder air at ground level with warmer air from higher up. These methods might be used commercially but, to quote the sage of Newburgh (that’s another story), “That’s not gonna happen” here.

Therapy, a Plan

Rather than worrying myself into the manic phase of spring, I’m going to assess the damage and live with it. For starters, I need to know the temperature.

I have been using is a nifty little device called Sensorpush, a 1-inch square cube, perhaps a half-inch thick, that I have mounted outside and that continually transmits the temperature to my cell phone.Sensorpush receiverGreat. Even better, temperature (as well as humidity) is recorded, and can be displayed graphically or downloaded to my computer. So I didn’t have to be awake to find out the mercury hit 32.5°F at 12:16 AM on the night of April 17th and stayed there until it began rising around 7 AM.
Sensorpush readout
Fortunately, researchers have compiled temperatures at which damage to blossoms occurs. Specifically, damage enough to wipe 10% of the crop, and damage enough to wipe out 90% of the crop. And more specifically, applying those numbers to various kinds of fruits, which vary in their blossom’s cold tolerances. And even more specifically to the various stages of blossoming for each kind of fruit. Generally, less cold is required to kill a blossom the closer it is to bloom time.

Here is a chart compiled and photographed by Mark Longstroth of Michigan State University:
Critical temperatures for fruit buds

So now I can take this information, couple it with data recorded by Sensorpush, and foretell my sensory future, pomologically speaking. Below freezing temperatures since trees awakened have been 24° on April 17th, 27° on April 19th, and 26° on April 21st. Of course, it ain’t over till it’s over, and the average date of the last frost here is about mid-May.

Peach blossoms

Peach bloom

Plum blossoms

Plum blossoms

My plum trees were in full bloom on April 13th, at which time the blossoms are susceptible to 10% kill at 28° and 90% kill at 23°. That makes only 10% loss. The peach tree was also in bloom on that date, and is very similar in it’s blossom’s cold tolerance, so only 10% loss there also, so far.

Asian pears were showing “first white” and “full white” on April 19th, when the low hit 27°. That temperature would cause them no damage. The same would be true, going forward, for subsequent temperatures above 27°. The Europeans should be fine because today, April 21st, they are in tight cluster, and cold hardy to 24°.

Asian pear blossom

Asian pear full white

European pear blossom

European pear tight cluster

Apples also are fine, also in tight cluster so, according to the chart, undamaged by temperatures above 27°.

Apple blossom pink tip

Apple blossom tight cluster

And a Sprinkle of the Unknown

All this seems very science-y comforting, and it is. As with most garden science, though, things are more complicated, to some extent, than can be easily predicted. For one thing, some variation in cold hardiness undoubtedly exists from one variety to the next. In the case of my trees, I have an American hybrid and some European hybrid plums; they might more generally differ in blossom hardiness. And what about the length of time at a given temperature, and the effect of humidity?

Overall, the chart has calmed me down. Not to mention that a certain amount of fruit loss would be a good thing. A tree has just so much energy, and too big a crop makes for less flavor and size. Only 5% of blossoms of an apple tree need to set fruit for a full crop.

Now, I can move on to worry about insect and diseases that might hone in on my fruit.

Pruning, Flowers

Much of Pruning is About Renewal

Why am I spending so much time pruning these days? To keep plants manageable and healthy, of course. But also so that flowering and fruiting trees, shrubs, and vines keep on flowering and fruiting. “Renewal pruning” is what does this.

Pruning apple spur

Pruning apple spur

As plant stems age, they — like all living things — become decrepit, no longer able to perform well. But any plant’s show or productivity can be kept up if stems that are too old are periodically lopped back, which promotes growth of new, young, fecund stems. That’s all there is to renewal pruning.

Ah, but the devil is in the details. One important detail is how old is “too old.” That depends on the flowering and fruiting habit of the plant.

Near one extreme would be pear trees. Along pear stems grow stubby growths, called “spurs,” which bear the tree’s flowers and fruits.

Young pear spur

Young pear spur

Older pear spur

Older pear spur

 

 

These stubby growths grow only an inch or less each year.  Over time, spurs branch and these small branches, in turn, branch to create what look like miniature trees perched along the tree’s stems.

A pear’s individual spur can remain vibrant for about a decade, so little pruning is needed annually. But eventually, even a spur grows old and decrepit. I renewal prune my pears by cutting back some of the stubby parts of a spur system to coax out younger stubby growths or even by lopping back a whole stem on which they sit, stimulating new stem growth on which will develop new spurs.

Near the other extreme in pruning would be an everbearing raspberry plant, which bears flowers and fruits on young shoots arising from ground level. Those bearing stems are very short lived. One way to prune an everbearing raspberry plant would be to lop all stems to the ground each winter. Having borne, those stems are aging rapidly, and pruning stimulates a flush of new, bearing stems that will come up from ground level in spring.

Everbearing raspberry growth habit

Everbearing raspberry growth habit

(Not to muddy the waters, but everbearing raspberry stems actually bear late in their first summer of growth, then again in midsummer the following year, so stems could be left one more season to bear that second crop. After that, though, the two-year-old stems need to be cut back. They die after their second year anyway.)

Pear and everbearing raspberry represent two extremes in bearing habit and, hence, method of renewal pruning. Other plants lie somewhere on the spectrum between these extremes. Where? It depends, as I wrote, on their particular bearing habit. For instance, blueberry stems are most productive on stems up to 6 years old, gooseberries on stems 2 and 3 years old, and grapes and peaches on stems one year old. So I cut away stems older than 6 years old from my blueberry bushes, stems older than 3 years old from my gooseberry bushes, and stems older than a year old from my grape vines and peach trees.

For other plants grown for either their flowers or their fruits, find out how to renewal prune them by watching how they bear for a season or more, or get the information from a book (such as my book, The Pruning Book).

A Workshop

If you’re interested in delving deeper into pruning, I will be holding a pruning workshop here on my farmden in New Paltz, NY on March 28, 2020. For more information about this workshop, please go to https://leereich.com/workshops.

Not Forgetting the Flowers

Flowers are at a premium this time of year. Here on my farmden, the only flowers blooming outdoors are winter aconite and snowdrops.

Winter aconite

Winter aconite

(Typically, my ‘Arnold’s Promise’ witch hazel would be bursting into bloom about now but a few years ago I performed dramatic renewal pruning to reduce the size of the plant. No special technique was involved other than lopping the whole plant to ground level. Witch hazel’s stems bear flowers for many, many years, so don’t need regular pruning; it does take a few years, though before stems are old enough to begin bearing.)

Indoors, plants sense the lengthening days of brightening sunlight. African violets have been blooming for a couple of weeks and will go on doing so for weeks to come.

African violet

The same goes for the Odontoglossum pulchellum orchid, whose stems are weighed down with small waxy white, fragrant flowers.

One surprise was a butterfly bush that was in a large pot that I had brought indoors for winter. This plant enjoys bright sun and hot days, neither of which it receives indoors — it has, nonetheless, managed to cough forth, so far, a singe blue blossom. I stick my nose into the flowers, close my eyes, and inhale, and it’s midsummer.

Butterfly bush flowe

Butterfly bush, indoors

Most dramatic are the humongous, fire engine red bloom of an amaryllis plant. It is gaudy, but appreciated anyway.

My favorites are the white blossoms now opening on Meyer lemon. The blossoms aren’t all that showy but their fragrance is heady and heavenly. No need even to get my nose up close.

I did catch one other bit of welcome color outdoors: my first sighting of bluebirds. The day is gray but the bluebird, to quote Thoreau, was “carrying the [blue] sky on its back.“

I Think My Vegetables are Nutritious

Nutrient Declines in Fruits and Vegetables

Growing vegetables is really quite simple. You put the seeds or transplants into sunny ground, you water and weed, and then you harvest your bounty. For that small effort, you can put on your plate food that is organically, sustainably, and (very) locally grown. Perhaps even richer in nutrients than food you can buy.
Healthy, healthful, vegetables
Studies over the past 15 or so years have documented a general decline in nutrients in our fruits and vegetables. Some people contend that our soils have been mined for their nutrients, worn out from poor farming, and therefore no longer able to provide us with nutritious food. The cure, according to these “experts,” is to sprinkle mineral-rich rock powders on the soil to replenish and rebalance that which has been lost. It all sounds very logical.

You might have sensed a big “but” looming. Here it is: But . . . further studies have pinned that nutrient decline on a dilution effect from increased yields. Pump up production with nitrogen fertilizer and water, or by breeding for increased yields, and nutrient concentrations decline; it’s as simple as that.

The final nail in the “worn out soil” coffin comes from side-by-side plantings of low- and high-yielding varieties of specific vegetables. The higher yielding varieties end up with lower concentrations of minerals and protein. The problem, then, if there is one, can be blamed on breeding and farming practices aimed at producing more bulk.

But . . . 

I’m not concerned with nutrient decline in my own garden. First of all, I’ve chosen the varieties I grow — Blue Lake beans, Cherokee Purple tomatoes, Lincoln peas, Early Jersey Wakefield cabbage, Ashmead’s Kernel apple, and Fallgold raspberry, as examples — with

one thing in mind: flavor! Peas in podIt just so happens that the most flavorful fruit and vegetable varieties are ones that have been around a long time. Yields may not be heavy, but these varieties are rich in flavor. (And perhaps nutrients. Anyway,

Ashmead's Kernel apple

Ashmead’s Kernel apple

if something doesn’t taste that good, I’m not going to eat much of it, so it’s irrelevant how high it is in nutrients.)

I’m also not concerned with nutrient decline because I don’t push yields to the max with repeated applications of soluble, nitrogen-rich fertilizers. My soil management is simple: One inch of compost per year spread on top of the ground of permanent vegetable beds; compost, wood chips, hay, and/or leaves around my fruit plants. As these organic materials decompose, nitrogen and other essential nutrients are bled slowly into the soil only in response to warm temperatures and moisture, the same environment that spurs plant growth.
Spreading compost
That compost is not serving up only nitrogen to my plants, or even just the big three nutrients, nitrogen, phosphorus, and potassium. Into my compost goes orange peels from Florida, avocado skins from California, and other kitchen waste, garden trimmings, some weedy hay, and, occasionally, horse manure. So the ground gets a wide variety of organic materials that, in turn, feed the compost and, in turn, feed the soil and the plants a wide spectrum of nutrients. And just to make sure that my soil lacks nothing, I occasionally sprinkle some powdered kelp around.

Herbs for Flavor, in Winter, Not Nutrition

Even if herbs were rich in nutrients, their nutritional contribution to our diets would be minimal because of the relatively small amounts actually eaten. But the small amounts needed to pizazz up a tomato sauce or frittata in winter also make herbs ideal for growing indoors in winter. A little goes a long way. 

The basic problem is that many cooking herbs are Mediterranean plants that, of course, thrive best in Mediterranean conditions, with bright hot sun beating down on them. So the expectations and the reality of a windowsill herb garden often diverge. Forget about growing basil or oregano in January.

With that said, I nominate two herbs perfect for indoor growing in winter. The first is bay laurel. This plant, a small tree trained as a “standard,” has spent the last 29(!) winters near a sunny window. A freshly plucked leaf brings to soups and stews a flavor only hinted at by the dried leaf; to me, in addition to its distinctive flavor I sense an oleaginous quality hinting of olive oil.

Bay laurel tree

Bay laurel

The second herb, rosemary, is my favorite for indoor growing. Rosemary tolerates being trained as a standard or fanciful topiary; it looks equally good left to its own devices to grow as a relaxed, small shrub.  (Mine are trained as standards.) Pinching off a few stem tips

Small, indoor rosemary "tree"

Small, indoor rosemary “tree”

with leaves not only puts some warm, Mediterranean sunshine into tomato sauce but also encourages growth of side shoots to keep the plant dense with shoots and leaves.

 

Once spring warmth has settled in around here, the bay laurel and rosemary will move outside to bask in the full force of Hudson Valley sunshine. 

FOR THE GARDENER WHO HAS EVERYTHING

How Cold? How Humid?

Do you want to send a really good gift to a really good gardener? (Perhaps that gardener is you.) Problem is that most really good gardeners have pretty much everything they need except for expendables like string, seeds, or potting soil (unless they make their own. Don’t despair; I’ve come up with a few items many really good gardeners with (just about) everything they need might find useful.

At the top of my list is a nifty, little device with the odd name of Sensorpush. It’s not much bigger than an inch square pillbox, less than 3/4 inch thick, that you place wherever you want to monitor temperature and humidity — from your smartphone, via bluetooth.

Sensorpush, graph of the week's outdoor conditions

Sensorpush, graph of the week’s outdoor conditions

Sensorpush, screen shot of current readings

Sensorpush, screen shot of current readings

Couple it with the WiFi Gateway and temperature and humidity can be monitored from anywhere on your smartphones. I periodically checked on my greenhouse and the outdoor temperatures here in New York when I was recently thousands of miles away in Israel.

SensorPush in greenhouse

SensorPush in greenhouse

My original use for the Sensorpush was for the greenhouse, to alert me, which it can do, if  temperatures drop to a minimum that I set at 37°F. I now have another, outdoors, which alerted me to the one late frost (28°F) last spring which wiped out the crop on my peach tree. I may also put ones in my freezer and walk-in cooler. 

All past information is available graphically and can be downloaded to a computer.

Water is Important

Much, much more low-tech is my new favorite watering can. It’s not any old blue watering can, it’s the French Blue Watering Can. It has everything I would look for in a watering can: hold lots of water, in this case 3 gallons; good balance when being carried and in use; and water exiting in a stream that’s gentle but not too slow. For optimum balance, get two, one for each arm.
Watering can, French blue
Although the French Blue Watering Can now beats out my previously favorite Haw’s 2 gallon, zinc plated cans, which are, admittedly, more visually elegant, Haw’s is still in the running with their beautiful, copper-enameled, 2 quart watering can that I use mostly indoors. For indoors, it’s a good volume, and the long spout can reach in among plants for more pinpoint watering once its rose is removed.
Watering can, green Haws

Books, of Course

I can’t help but mention books. Those that I mentioned last week were general categories; the really good gardener has, of course, some very specific interests and expertises. And there are books for these (I’ll stay away from my special interests to avoid having to mention, once again, any of the books that I have authored). 

So, for instance, if you’re interest is in unusual vegetables, you could start with A. C. Herklots’ 1972 publication Vegetables of Southeast Asia. The book is especially rich in “greens,” including shepherd’s purse (Capsella bursa-pastoris), garland chrysanthemum (now Glebionis coronaria), and honewort (Cryptotaenia japonica). Also a slew of “Asiatic cabbages.” For something even less contemporary, there have been various printings of The Vegetable Garden by Vilmorin-Andrieux,scion of the famous French seed company. In addition to many common vegetables, of which many interesting varieties are mentioned, ferret around in the book and you’ll also find some unusuals: olluco (Ullucus tuberosus), rampion (Campanula Rapunculus), and seakale (Crambe mariitima).
Books, unusual vegetables
Eric Toensmeier’s Perennial Vegetables offers a much more contemporary take on unusual vegetables. Most of the vegetables mentioned are not really perennial in cold climates but they surely are unusual. The last I heard, very few people were growing nashua (Tropaeolum tuberosum), Chinese artichoke (Stachys offinis), chufa (Cyperus esculentus var. sativa), or winged bean (Psophocarpus tetragonobolus).

Tools and Plants

Finally, I’d like to give a shout out to the five advertisers on my blog posts (to your right). These are not just any old companies that choose to advertise. They represent businesses whose products and, in some cases, owners I know and trust (by experience) to offer the highest quality products.

Let’s start with the two nurseries. Looking for a place to buy high quality plants of pawpaw, persimmon, quince, medlar, or even more common fruits. Raintree Nursery is the one. I’ve even sent them stems from some of my more unique plants to propagate. Cummins Nursery is the go to nursery for a very wide selection of varieties of apple, pear, peach, and other familiar tree fruits on a variety of rootstocks. The rootstock helps determine such tree characters as size, adaptability to various environments as well as how soon and how much fruit you’ll pick.

(Incidentally, a nursery tree grown hundreds of miles away can be just as adapted to your site as one grown around the corner. Genetics is important, so an Ashmead’s Kernel apple grown in Washington is genetically identical to one grown in New York, or anywhere else.)

With all those new plants, some tools will be needed to help care for them. For everything from high quality soil sampling tubes to grafting supplies to hoes to tripod ladders (very stable, I own two different sizes), look to Orchard Equipment Supply Company (OESCO).

If you’re looking very specifically for cutting tools — pruning shears, pruning saws, loppers, pole saws, and the like — look no further than ARS. You can’t go wrong purchasing an ARS tool. After writing a book about pruning, I was sent many samples of pruning equipment; among the shears, ARS — specifically the VSX Series Signature Heavy Duty Pruner — is my favorite, with good weight, good steel, replaceable parts, and easy opening with just a firm squeeze of the handles. They slightly edged out my Felco and Pica shears.

Scythe Supply sells just one thing: scythes. But they offer the best of the best, as well as sharpening services and instruction. Don’t expect one of those picturesque, old scythes often turning up at garage sales, more useful for decorating a barn wall than cutting tall grass. Scythe Supply scythes are super light and well balanced with blades hammered razor sharp like those of Samurai swords. One-time Congressional candidate, homesteader, and swinger of a scythe into his nineties, Scott Nearing had this to say about scything: “It is a first-class, fresh-air exercise, that stirs the blood and flexes the muscles, while it clears the meadows.” So true. I use my mowings for compost and mulch.