Gardening – Page 34

Hormones Get Pumping

September 12, 2014/5 Comments/in Books, Fruit, Gardening, Vegetables/by Lee Reich

More Brussels Sprouts, Cabbages, & Pears with Hormones

It’s time to get the hormones pumping. No, not by me embarking on some testosterone-fueled, garden-related feat of strength or endurance. Not even my own hormones, but the ones in my plants, more specifically my brussels sprouts plants. And actually, quashing the action of one hormone so that other hormones can come to the fore.

Let me explain: Brussels sprouts are not only a member of the cabbage family but are the same genus and species as cabbage, as are broccoli, cauliflower, kohlrabi, and kale. Differences in these plants lie in the way growth of the stems and leaves are expressed. Cabbage has a single stem that’s been telescoped down to very short internodes, resulting in a tight head of overlapping leaves. With kale, internodes along the stem are further apart, allowing each leaf to unfold fully on its own. They also look different from those of cabbage.

In every plant, a shoot bud develops in the upper part of the crotch where a leaf joins a stem. Most brussels sprouts buds each start to develop enough to form a small, cabbage like head. But I — and probably you also — want large brussels sprouts sprouts (and more of them, so I also want tall brussels sprouts plants on which to attach the sprouts).

Pinching makes Brussels Sprouts sprouts bigger

The sprouts are retarded somewhat in their development by a hormone called auxin. Auxin is one of many plant hormones coursing about within leaves, fruits, shoots, and roots, their effect dependent on such variables as plant part, plant age, and what other hormones they are reacting with. One place of auxin synthesis is in the tips of stems, and their effect is to suppress growth of buds down along the stem, with more suppression the closer a bud is to the tip of the stem. I just looked at my brussels sprouts plants; yes, the largest sprouts are those nearest ground level. It’s still too early to harvest and too many of the upper sprouts, at present, are too small to be worth picking.

Suppressing auxin production in the tip of the stem releases their hold on the buds — that is, the sprouts — along the stem, so they can grow larger. Suppressing auxin production is simple, requiring only two fingers: Just snap off the tip of the stem. No tip, no auxin production, for a while, at least. The time to do this “operation” is the beginning of September. Done too soon, and a developing sprout might grow so bold as to grow out into, at worst, shoots or, less worse, loose heads. Plus, earlier in the season, I want to keep the stem elongating to provide real estate along which to hang more sprouts.

A Three-Headed Cabbage!

As I wrote, every plant develops buds in its leaf axils, and in every plant growth of those buds is mediated, in part, by auxin. Harvest the main head of broccoli and side shoots start to grow for eventual harvest.

Even tight heads of cabbage have those buds and they also respond to auxin’s influence. I used to plant cabbage in the spring for harvest in summer. Rather than pulling out the spent cabbage plants, as is usually done, I would leave the cut stump with a few bottom leaves for nourishment. Harvesting the cabbage dramatically removes the tip of the stem, which was buried within the head.

Cabbage plants left after harvest develop multiple heads

Cabbage left after harvest = multiple heads

Within a couple of weeks, new sprouts would develop in the crotches where leaves were or had been. In the ideal world, I’d get one to three new cabbage heads from each plant, ready for autumn harvest. A certain amount of art was needed to get it right. Depending on growing conditions and the number of new heads I allowed to develop, they might end up too small or too loose-leaved.

I’ve abandoned that chancy cabbage habit and now do a second sowing of cabbage in early June for a reliable autumn harvest of firm heads.

Pears — More, Please

I fiddled around with hormones earlier this season also, with longer term goals in mind. Auxin keeps the tip of a stem or the upper portions of a plant growing most vigorously. Vigorous growth, though, is at odds with making fruit. After all, both require a lot of a plant’s energy, so the plant has to partition the energy efficiently between growing and fruiting.

Pear trees are famous for growing vigorous shoots skyward. Yes, shoot growth is needed on which to hang fruit and for adequate leaves for photosynthesis. But enough is enough. Rather than pinch out shoot tips, which would likely just pass on the vigor to nearby lower buds, I bent ranches down and held them there with string. Changing stem orientation from vertical to at or near horizontal quells auxin production, slows growth, and promotes the formation of fruit buds along the stem. (Fruit buds form the year before flowers open.)

Fruits now dangle from some of the stems that I pulled down a year ago last spring. The response can take more than a year as energy reserves are redistributed within the stem. Response also depends on a tree’s inherent vigor, growing conditions for the season, the pear variety, the degree of stem bending, and other knowns and unknowns. It’s takes a mix of science, art, and experience, and that’s what makes gardening so interesting for me.

GOURMET COMPOST WORKSHOP

September 7, 2014/3 Comments/in Gardening, Soil/by Lee Reich

End of Summer? Enter the Fall Garden.

September 5, 2014/2 Comments/in Gardening, Planning, Vegetables/by Lee Reich

Fading Summer Brings in Fall Greens, and Hollyhocks for Cheer

There’s a flurry of seed sowing and setting out of transplants going on here. Am I deluded that it’s springtime? No. Autumn is around the corner and there are vegetables to be planted.

For many gardeners, summer’s end and the garden’s end are one and the same. But planning for and planting an autumn vegetable garden bypasses the funereal look of waning tomatoes, peppers, cucumbers, and other vegetables that thrive only with summer heat and long days of sunshine, and puts plenty of fresh vegetables on the table. Having an autumn vegetable garden is like having a whole new garden, one that gradually fades in, like a developing photograph, as summer vegetables fade out.

Autumn vegetables come to the fore as tomatoes fade away

Which is why today I tucked two dozen endive transplants into a double row of holes spaced fifteen inches apart in a three-foot-wide bed. And which is why, in a different bed two weeks ago, I sowed a row of Watermelon winter radishes (the resemblance to watermelon only in the color of their innards), a row of turnips, and a row of Chinese cabbage. Also, why back in March, seeds of Brussels sprouts were sown, the seedlings of which were transplanted to yet another bed last May.

Not that the time has passed for planting any autumn vegetables; plenty of vegetables that enjoy the cool moistness of autumn are still to be sown. This week, I plant to sow lettuce, spring radishes, arugula, mustard, and spinach.

Edamame Out, Endive In

The question might arise as to where to plant all these autumn vegetables when the garden is already overflowing with summer vegetables. Overflowing, really?
I planted the endive transplants in a bed that I had just cleared of edamame plants; edamame bear over a period of a couple of weeks and then they’re done, which they were. Likewise, a whole bed of onions and a first planting of corn are finishing up, freeing up space for planting. Even the bed from the second planting of corn will be freed up the end of August.

Endive transplants go where edamame once grew

Harvest of bush beans does not halt as abruptly as that of corn, onions, or edamame. Nonetheless, the bean harvest does begin to taper down after two or three weeks, so out went the first planting of bush beans a couple of weeks ago. A second planting, sown in a different bed three weeks after the first planting, took up the slack, and today I’m pulling even those plants out of the ground. Pole bean plants will keep green beans on our plates until frosty weather, which it what it takes to put a stop those plants.

Can’t Help But Smile With Hollyhocks

My garden isn’t only about food. I’m also sowing some flower seeds now, not to blossom in autumn but to get a jump on next spring.
This past spring I sowed seeds of Apricot-Peach Parfait hollyhocks (from https://www.reneesgarden.com). Right now, the plants’ seven-foot-high spires are studded along their length with frilly blossoms in delicious shades of apricot and rosy-peach. I want more.

Spires of Apricot-Peach Parfait hollyhocks add a smile to the garden.

Hollyhock self-seeds so future population growth could be left to the vagaries of nature and weather. But overly diligent weeding or mulching might quash newcomers, so I’m going to sow more seeds. Hollyhock is a biennial or short-lived perennial so that self-seeding habit is welcome.

As either a short-lived perennial or biennial, hollyhocks tend to grow just leaves their first year and flower their second year — then die if they behave like a biennial, or go on to flower for more years if they are perennial. I was able to get flowers this season from spring-sown seeds because I planted the seed early and the seedlings spent their first few weeks of growth in the greenhouse. (Through breeding, some varieties of hollyhock behave as annuals, and bloom reliably their first year — but not as seven-foot-high spires.)

Planting the seed in late summer guarantees that the plants will bloom next year, and earlier than spring-sown plants. Cool weather of late fall and late winter helps trigger the flowering response.

Delphinium is another flower to sow this week. In addition to the advantages of enjoying spires of blue flowers earlier and more reliably next summer, delphinium seeds sprout more reliably if fresh, which they are more likely to be in autumn than the following spring. Chilling the dry seed — some sources suggest stratification, that is, chilling the moist seed — for a week or so also is said to help wake it up.

Once seedlings of hollyhocks and delphiniums get going, they’ll need special accommodations to get through winter. After all, they’ll still be tender, baby plants when the weather turns frigid. The goal is to keep them alive and growing slowly going into winter. I’ll either tuck the pots close together in the cold frame or in the slightly warmer large window in my barely heated basement.

WESTWARD HO, FOR FRUIT MEETINGS AND EATINGS

August 29, 2014/3 Comments/in Fruit, Gardening/by Lee Reich

Fruit Nuts, Including Me, Nurseries, & Wild Blueberries

Are there organizations for people who make and eat cheese; build and ride motorcycles; write and read books; grow and savor fruits? All I know is that the answer to the existence of the last-named organization is a rowsing “yes!” I know because I recently returned from Oregon, where I converged with other fruit nuts for the annual meeting of North American Fruit Explorers (www.nafex.org, and nuts, incidentally, are also covered under the organization’s umbrella).

No need to don a pith helmet and traipse off to Borneo to be a fruit explorer. Not that you couldn’t, and be one. No, this fun meeting brought together everyone from backyard growers with a few fruit plants to AN 88-year-old guy who grows over 3,000 varieties of apples. Fruits represented ranged from apples and pears to pawpaws and persimmons and, even more rare, haskaps and gumis. These people, we, realize that there’s a lot more to enjoy in the world of nature’s desserts — fruits, that is — than what you see on display in the supermarket, even farmers’ market.

What appeared to be a roomful of normal people was actually a roomful of fruit nuts, among which I count myself. NAFEX members are as varied as the fruits they grow, with all ages, genders, home towns, and “real jobs” represented. Members can share their trials, tribulations, and rewards of fruit growing (the title of my lecture there), ask questions, and exchange plants in their quarterly publication.

Me, staring through espalier pear at Mt. Vernon, WA research station

Each year’s annual meeting is at a “fruitful” location. Last week’s meeting took in tours of the USDA germplasm repository, which houses the USDA collection of pears, gooseberries, currants, and bramble fruits, and of research centers on hazelnuts and brambles. All accompanied, of course, by tastings. If you love fruit, grow some . . . and join NAFEX.

Branching Off to Pakistani Mulberries, Delectable Crabs, and More

I branched off (pardon the pun) from the group to visit a few nurseries. First stop was Whitman Farms (www.whitmanfarms.com), at which I made a beeline to Lucille Whitman’s black mulberry (Morus nigra) tree, an offshoot of which I’ve grown for many years. I grow it in a pot because it’s a subtropical species, not cold-hardy here. It’s worth the effort because it is among the most delectable of fruits. It’s hard to imagine that such a small berry can pack such a wallop of rich, sweet-tart flavor, much better than the wild mulberries around here. Lucille also grows a slew of gooseberry and currant varieties, another group of fruits that worthy of wider attention.

Black Pakistani mulberry

From there it was on to Burnt Ridge Nursery (www.burntridgenursery.com), worth visiting also for its panoramic view of the Cascade Mountains, including Mount Saint Helens. I soon realized, driving down the gravel nursery road, that we were passing through a virtual Garden of Eatin’, with apples and pear trees, grapes, and hardy kiwi vines. The forest of large trees turned out to be a nursery owner Michael Dolan’s extensive collection of chestnuts. It was too early in the season to taste any chestnuts but I did get to taste his Black Pakistani mulberry, which had a chewy texture and perhaps even richer flavor than black mulberry. (Black Pakistani is a variety of M. alba, white mulberry.) Another plus for Black Pakistani is that its fruit is two or more inches long. (Lucille Whitman also sells Black Pakistani. Note to myself: Get a Black Pakistani tree to grow in a pot, like a fig.)

Finally, I motored along with Sam Benowitz north to Washington state, to his nursery, Raintree Nursery (www.raintreenursery.com). We were greeted at the nursery entrance by espaliered apple trees, then plum trees whose branches bowed

Centennial crabapple tastes good and looks good.

Centennial crab apple rates great; a crab is any small apple.

low from their load of fruit. A Centennial crabapple tree splayed out its small but ripe fruits, which were delicious, especially for a summer apple. Another note to myself: Purchase or make a Centennial crabapple. Pots of lingonberries were lush with their shiny evergreen leaves, the size of mouse ears; persimmons leaves hung languidly from the trees’ branches; and hardy kiwifruit brightened up the scene with silvery variegation, blushed with pink. Alas, these fruits were not yet ripe so for the time being provided only eye candy.

They Call Them Huckleberries

Fruit nuts are a friendly fraternity, ready to share experiences and fruit. Blueberries are among my favorite fruits, and my newfound, northwestern friends were anxious to introduce me to some western blueberry species. First was red huckleberry (V. parvifolium). Not to be an ingrate, but . . . yuk! A very small, very tart, red blueberry. Perhaps the red color threw me off. Next came evergreen huckleberry (V. ovatum), much tastier, and evergreen, but still not holding a candle to our eastern blueberry species.

Finally, though, I had a taste of mountain huckleberry (V. membranaceum). Delicious. Different but as good as our east coast species.

I was given some leafy stems of mountain huckleberry packed for travel with their bases in water tubes and their leaves wrapped in moist tissue. As soon as I got

Blueberry cuttings in my clear plastic propagator.

home I stripped all but the upper two leaves from the stems and inserted their bases into the mix of moist peat and perlite in my makeshift propagator. The propagator sits on the north side of my house, its clear plastic cover maintaining sufficient humidity while letting in sufficient light until the cuttings root — I hope. Blueberry species are not particularly easy to root, although one of the main ingredients needed is patience. I’ll also sow seeds of the few fruits I brought home.

In a few years, my memories of last week’s journey may also live on in my taste buds.

GOOD FUNGI AND BAD INSECTS

August 21, 2014/8 Comments/in Gardening, Pests, Soil, Vegetables/by Lee Reich

Fungi I Like and Bean & Japanese Beetles (Don’t Like)

Where once scorned or appreciated only after being sautéed in butter, fungi have finally come into their own. If you’re among those who isn’t awed by fungi except when they’re sautéed, swallow this: each gram of soil (the weight of a paper clip) might house over a million fungi, or anywhere from 10 to 100 pounds of them in the top 6 inches of a 1000 square feet of soil. And most of what they do — for plants and soil, forget about your taste buds for now — is beneficial.

I recently heard of a project using fungi as a building material. On exhibit at the Metropolitan Museum of Art’s PS1 in New York City is Hy-Fi, a cylindrical tower built our of bricks made from fungi that have been fed cornstalks, the fungi’s fine, thread-like hyphae growing to create dense bricks. An organically grown building! Among the benefits touted were that a building made of fungi could be recycled.

I’m not so sure that a building that can be recycled is a good thing, but one statement by the architect did raise my hackles: that the building could be made of waste materials, such as cornstalks. The same argument could be or has been used for ethanol production, which could be made from the same waste material.

Corn stalks might be waste material in the sense that we don’t eat them, perhaps not even always feed them to animals. But corn stalks, wheat straw, and other so-called “waste materials,” as the architect perhaps inadvertently pointed out, are a gourmet delight for fungi. Also good food for bacteria (3 million to 500 million per gram of soil), actinomycetes (1 million to 20 million per gram of soil), as well as protozoa, nematodes, and other soil creatures. And don’t forget about earthworms (2 to 22 pounds per 1000 square feet of ground). There’s a lot of hungry creatures down there.

So these materials are not waste; they are food for soil life. They are what put the “organic” in organic gardening and farming. (They are “organic” in the sense that they were once living, and that they contain carbon compounds, mostly combined with hydrogen and oxygen.) They confer a range of physical, nutritional, and biological benefits to soil, plants, and, hence the animals, including humans, that feed on them. Depriving the soil of these organic materials is what led, in part, to the dust bowls of the 1930s.

Corn stalks as well as other organic materials too often considered as waste should be returned to the soil, either directly or after being first run through a compost pile. One measure of soil quality is the amount of organic material it contains.

Waiting Out Japanese Beetles

Japanese beetles have not come into their own; they have never been and continue to NOT be appreciated. The swarmed in a few weeks ago to make lace of the foliage of a whole host of plants. Grapes are among their favorites, evident by merely looking out on the landscape and picking out the hole-y grape leaves. (The leaf veins typically remain intact.) Although roses are also a reputed favorite, the beetles left mine unscathed.

Kiwi foliage made lacy by Japanese beetles

Japanese beetles made lacework of just this hardy kiwi’s foliage

Most interesting is the beetle’s effect on my hardy kiwifruits, specifically the super-hardy sorts (Actinidia kolomikta). I have four plants, 3 females — Krupnoplodnaya, Aromatanya, and Sentayabraskaya — and one male. Of all those plants, only the Sentayabraskaya plant was attractive to the Japanese beetles, dramatically so. Looking up, I can see sky through almost every leaf.

Japanese beetles are hard to keep in check. For a few plants, hand picking into a can of soapy water (the soap so they don’t just fly out after a quick bath) is effective. The biological insecticide milky spore disease, applied to lawns to kill the grub stage in the soil, is sometimes effective, especially in more southerly locations. Of course, beetles emerging from the soil in summer can fly, so milky spore is useless unless done on a neighborhood scale. Neem is a relatively benign repellant and insecticide that’s somewhat effective sometimes; it would require too much spraying, especially for something with such an iffy effect.

So I just wait the beetles out. Plants can tolerate a certain amount of damage and the beetles typically wave goodbye to go burrow into the soil and lay eggs sometime in August. The wait was especially short this year, with most of the beetles departing by the third week in July. Thank you guys, and gals.

And Where Did Mexican Bean Beetles Go?

A Mexican bean beetle threesome

Other pests also come and go. Mexican bean beetles, mentioned last week, still are keeping to themselves, wherever that might be but not in my garden. Tomato hornworms, which are large caterpillars with voracious
appetites, stripping leaves from tomato plants in the matter of hours, turned up in a friend’s garden. Fortunately, piggybacking those beetles were what looked like grains of rice. They’re actually cocoons of a braconid wasp, which will kill the hornworm. Leaving parasitized beetles alone lets the parasite live to attack more hornworms.

Rice-like granules attached to tomato hornworm are parasites

Parasite attacks tomato hornworm; winner: parasite.

Also worth ignoring are the pimples that have been appearing on leaves of many pin oaks. Those pimples — hemispheres about 1/2” across — are galls. Plant galls are abnormal growth made in response to an irritant such as a bacteria, a fungus, or, most commonly, an insect. A few galls here and there rarely do a plant harm.

Those oak leaf galls are pocking almost all the leaves on my pin oak. Still, I’ll ignore them or admire them; they sort of liven up the look of the tree. It’s too late, anyway, to do anything about them.

WEEDS, BIRDS, & PEST-FREE CURRANTS

August 15, 2014/0 Comments/in Fruit, Gardening, Pests/by Lee Reich

I Battle Weeds and Birds, but Currants are Care-free

Part of my weedless gardening technique (which I thoroughly fleshed out in my book Weedless Gardening) involves — sad to say, for some people — weeding. After all, no garden can ever be truly weedless. Even people who spray Roundup eventually get weeds as they inadvertently “breed” for Roundup-resistant weeds, which now exist. My techniques are weed-less rather than weedless.

Which brings me to hoeing. Most years my hoe rests on its designated hook in the garage. This year, it’s hardly made it back to garage, mostly just leaning up against the garden fence alongside the gate. “And why is this?” you might ask. The answer is rain. This season, rainfall has been dropping in sufficient amounts at regular intervals, all of which has coaxed good plant growth, including that of weeds.

More importantly, the rainfall has promoted plant growth in paths and between widely spaced plants. One leg of my 4-legged “weedless gardening” stool calls for drip irrigation, which pinpoints water near plants. In a normal year, or a dry year, there’s little moisture to spur on weed growth elsewhere. This year, rainfall has democratically spurred weed growth everywhere.

Hence the hoe. The best hoes to snuff out young weeds without unduly disturbing the ground are ones with thin, sharp blades that lie parallel to the ground. All that’s needed is to slide such hoes back and forth a quarter of an inch or so beneath the surface, cutting the stems of hopeful, young interlopers. The work, if can be called that, is quick and easy, not calling for the “iron back with a hinge in it” recommended for a gardener by Charles Dudley Warner in his 19th century classic My Summer in the Garden. Too many people use a pull or draw hoe, whose blade lies perpendicular to the handle, to try to conquer weeds.

The hoes I’m recommending are so-called push or thrust hoes. Some examples include the collinear hoe, the scuffle hoe, the stirrup hoe, and, my favorite, the wingèd weeder. With any of these hoes, roots aren’t damaged and lower depths of soil remain at lower depths so that inevitable weeds seeds buried there are not awakened as they are exposed to light. (Minimal soil disturbance is another leg of my 4-legged “weedless gardening” stool.)

Still, my wingèd weeder is not effective unless it is used — frequently this season, ideally once a week or within a couple of days after a rain. Used in a timely manner, the wingèd weeder does a quick, effective, and satisfying job.

Currants are an Old-Fashioned Fruit Easy to Grow

“The currant takes the same place among fruits that the mule occupies among draught animals—being modest in its demands as to feed, shelter, and care, yet doing good service,” wrote a nineteenth-century horticulturalist. Hoeing takes time, especially this year, so it’s nice to balance that with something — currants, in this case — that is “modest in its demands.”

One of my currant bushes, a Perfection (that’s the variety name) red currant, splays its stems upward and outward in an ornamental bed in front of my house. Sharing that bed, for beauty and for good eating, are huckleberries, lowbush blueberries, and lingonberries, and, for beauty alone, mountain laurels and dwarf rhododendrons.

The only care my currant gets is, anytime from November until late March, pruning. The plant bears best on 2- and 3-year-old stems so I cut away anything older than 3 years old and reduce the number of new, 1-year-old stems to the half dozen or so most vigorous ones. The whole bed gets a sprinkling of either soybean meal (1# per hundred square feet) or alfalfa meal (3# per hundred square feet) in late fall, topped with a mulch of leaves or wood chips.

The bush began bearing towards the end of June and a few clusters of the plump, jewel-like fruits still hang from the branches. Most people use red currant for jelly or sauce. I like to eat them straight up, with my morning cereal, for instance. The flavor is tart early on but has mellowed by now.

Currants were once a more popular fruit in America, and especially here in the Hudson Valley. They are one of the few fruits that tolerate shade (and deer!), and were often grown in the shade of large, old apple trees. Local folk, including children, would ride out to the orchards in hay wagons for communal picking.

Currant is, truly, among the uncommon fruits for every garden (good book title, that).

I Reluctantly Share Some Blueberries with Birds

Just a quick note about my blueberries, which are also relatively carefree. Last year’s abundance of cicadas may have upped bird populations, or at least made birds believe that lots of food would always be in the offing. Not so, birds. Perhaps, then, that’s why so many bird are fluttering all around my blueberries, mostly on the outside of the net that encloses my Blueberry Temple of 16 plants.

Right now a hawk — a cardboard one, swooping in breezes as it hangs from a string fixed to the end of an long, inclined bamboo pole — is meant to dissuade birds from even approaching the net. Calm mornings keep the hawk still enough so an occasional bird find their way through the net (where?) to venture into the Temple.

Eerie White to Golden Flowers, with Some Fungi Helping Out

August 11, 2014/3 Comments/in Design, Gardening, Soil/by Lee Reich

White Indian pipes, mycorrhizae, and a golden flower

I do occasionally tear myself away from the farmden. So into the woods I went last Friday and as I was hiking along and glancing down at the trail, I came upon one of my favorite flowers. It’s a favorite not for its beauty but for what it hints at of goings-on beneath the soil surface.

The flower was indian pipes, Monotropa uniflora, an eerily white plant that looks like a upright tobacco pipe whose stem has been poked into the ground. Yes, it’s white. All white. You might rightly wonder how the plant synthesizes carbohydrates for energy and for structure. Photosynthesis, which makes carbohydrates, requires chlorophyll, which is green. Indian pipes don’t need chlorophyll because they get their carbohydrates from neighboring trees.

Join me while I go below ground. Stopping for a look at the roots of indian pipes, we see that they are infected with the fine threads of fungal hyphae. Now, if we follow the fine threads of the fungal hyphae out of the roots and through the soil, we eventually come to the roots of a nearby tree whose roots also are infected by one and the same fungus. A continuous connection exists from the tree to the fungus to the indian pipes.

The tree does have green leaves and, as with other plants, some of the products of its photosynthetic labors are channeled down to its its roots. Some of those products travel out the roots and into the fungal hyphae, and some of that is drawn out of the hyphae into the indian pipes for the latter’s sustenance and growth. Sounds like a one-sided relationship, a pretty good deal for the indian pipes. It is. The plant is a parasite, taking but offering nothing in return.

The relationship between the fungus and the tree, however, is symbiotic and called mycorrhizae (my-co-RYE-zay, which means fungus-root). Yes, the fungus sucks up some of the tree’s photosynthates, but in return it sucks up nutrients from the soil, then channels them back to the tree’s roots. The network of fungal hyphae in the soil is much more extensive than that of the roots, so, with fungal hyphae as “extenders,” the effective volume of soil “grazed” by roots is increased. Mycorrhizae are especially important for uptake of nutrients such as phosphorus, which roots (or their fungal extenders) must go out and find because it moves but little in the soil.

Myco . . . say what?

Wouldn’t mycorrhizae spur growth of garden plants? Yes. But look out your window; most of the plants you see are naturally mycorrhizal already. Still, deliberate inoculation might benefit young transplants. You can purchase inoculum, but the problem is that purchased inoculum often is not of fungal species best adapted to a particular location.

A better approach would be to keep your indigenous fungi happy. Limit tillage, which discombobulates the hyphae, grow a variety of plants, especially those that form mycorrhizal associations, and avoid pesticides. Also limit phosphorus fertilizers because they suppress mycorrhizae.

Another approach would be to grow your own mycorrhizal inoculant of local fungal species. Basically, you mix up a big batch of potting soil that has some indigenous soil in it and is not too high in nutrients. In this potting soil you grow a suitable host plant. (Not spinach, beets, or any plant in the cabbage family, none of which ever form mycorrhizae.) After the host plant dies at the end of the season, what’s left in the pot is indigenous fungal inoculum that can be added to a potting soil for growing seedlings. For more details, see http://rodaleinstitute.org/a-complete-how-to-on-farm-am-fungus-inoculum-production/. I use garden soil and compost in my potting mixes and assume there’s sufficient inoculum already present.

Grow Some Gold

As I rounded the bend at the back of my garden after my woodland hike, I came face to face with a flower I had planted temporarily back there, giant knapweed (Centaurea macrocephala), also known as Armenian basket flower, globe centaurea, and yellow hardhat. Plants with too many common names are usually suspect to me, and none of this plant’s names have a particularly nice ring to them — yet this plant is a showstopper.

From the whorl of rather coarse leaves at the base of the plant rises a sturdy flower stalk. At almost 4 feet high, a big fat bud forms atop the stalk, a bud that looks like a globe artichoke that has been gilded. Nice enough even then, but a couple of weeks later — which is now — a bottlebrush of lemon yellow petals spills forth from the top of the bud.

Globe centaurea, the name most euphonious to my ears, tolerates heat and cold (USDA Hardiness Zones 3 to 8), and is relatively carefree. No need to prop the flower stalk up with a stake. The blossoms put on their show for about a month, not counting the gilded opening act, and hold up well as cut flowers, or can be dried.

Globe centaurea deserves more attention over much of the country, except perhaps in the Pacific Northwest, where it’s considered invasive. I grew it years ago, and it disappeared. Nice to have it back.

Plagues Come & Go, With Some Help, and Seattle-time

August 1, 2014/10 Comments/in Fruit, Gardening, Pests/by Lee Reich

Meet me in St. L . . . Seattle

Come hear me lecture on August 10, 2014 on “Luscious Landscaping, with Fruiting Trees, Shrubs, and Vines” at 1 pm in the Garden Room at Magnuson Park. For more information, go to http://www.brownpapertickets.com/event/755459.

Plague again; keep calm

Every year it seems some new plague is ready to attack plants. A few years ago, late blight of tomato moved to the fore. Emerald ash borer, threatening ash trees, was first found on our shores in 2002. (Figuratively; literally, the insect, native to Asia, was first noted in Michigan.) What’s next?

Perhaps a calmer outlook is called for. A decade or so garlic mustard seemed ready to take over our world. Not so, now, perhaps because it’s being crowded out by Japanese stilt grass, which itself seems now ready to take over our world. Garlic mustard is native over much of the northern hemisphere, except North America, and was introduced here around 1860 as a culinary herb. As for stilt grass, it hitchhiked here from China about a century ago, as packing material for porcelain. It’s deer-resistant, for what that’s worth.

Plant problems come and go. The best approach is to keep calm and, in some cases, plant something different, something plague resistant.

Bean Beetle Management

Green beans are a mainstay of my garden, of just about every garden. More than 20 years ago, Mexican bean beetles (a species of ladybug!) found my bean plants and have plagued them every year since.

The adults, with eight black spots over a red or yellow background, wake up late from winter sleep to lay eggs on bean leaves. I’ve come to despise the yellow, balled up spiny larvae that gorge on leaves and other plant parts.

Still, I have managed to grow good crops of beans over the years, not by killing the beetles or their larvae, but by growing a different plant. Sort of. Rather than grow pole beans, which reside in the garden all season long to provide a constant source of beetle food, I have been planting successive crops of bush beans. Bush bean plants tend to bear quickly and for about 3 weeks, then peter out, so a new planting in a new bed goes into the ground every 3 weeks from mid-May until late July.

Yield from a planting tapers off just as its resident beetle population is beginning a feeding frenzy. Then it’s time to pull up the plants, thoroughly clear the bed of leaves and old pods, and rush it all to the compost pile. Chopping the debris with a machete and burying it beneath straw and manure, and watering the pile, as needed, sends the temperature soaring, killing most of the beetles. Bean beetles are good fliers, so cooking the beetles in the compost pile doesn’t solve the problem, just keeps it under control.

Death to the beetles, with restraint

Something strange happened this year: As of this writing, only one beetle larvae has been seen. Last year I doused the bean plants a few times with one of two organic sprays, which gave good beetle control. It also gave me the confidence to try growing pole beans, as I did in my pre-Mexican bean beetle days. They got some bean beetles but we did harvest pole beans.

The sprays were Entrust and Azamax, both approved for organic agriculture. The active ingredient in Entrust is spinosad, a compound found in bacteria, Saccharopolyspora spinosa, that was isolated from soil collected inside an old rum still in the Virgin Islands. Although toxic to a range of insects, it is otherwise relatively benign. Still, the label requires waiting at least 3 days to harvest after spraying.

Azamax is an extract of the seed of the tropical neem tree, native to the Indian subcontinent. In that part of the world, this one tree has been used as human food, insect repellant, bird repellant, and an ingredient of soap. It degrades rapidly in soil or in water, and is harmless to earthworms, honeybees, and insect predators. Food crops can be harvested right after spraying Azamax.

Still, Azamax and Entrust are pesticides. Perhaps the bean beetle cycle has been broken here and sprays can be forgone in the future. I’ll keep calm. No sprays this year, yet.

SWD, go away

The same two organic sprays might be called upon for another pest, the spotted wing drosophila, unaffectionately known as SWD. Also an Asian import, this one has moved east since being first spotted in 2008 in California. It is hard to keep calm with this pest because it attacks blueberries, my favorite and heretofore my most reliable and abundant fruit crop. The pest is also fond of blackberries, raspberries, and — not that it matters to you or me, because we don’t eat them — honeysuckle berries.

Again, there are management options. Because SWD seems to blow in from more southerly locations, a fine net could exclude them. Prompt refrigeration of harvested berries for 3 days kills larvae within. Thorough harvest of sound and unsound berries also keeps populations in check.

And then there’s Entrust and Azamax (or some other neem product), any of which I consider a last resort. I’m setting up traps to monitor if and when SWD arrives. (For information on monitoring, see http://www.fruit.cornell.edu/spottedwing/monitoring.html.) Till then, and after, I’ll try to remain calm. Om. Om. Ah-oh-om.

Farmden Health Club & Basil

July 25, 2014/1 Comment/in Gardening, Tools, Vegetables/by Lee Reich

Rei-King, an Ancient Exercise?

Among the many benefits of gardening is the opportunity it offers for enjoyable, productive exercise in the great outdoors. And now we can add an exercise called rei-king to boot camp, pilates, zumba, kick boxing, cardiofunk, and other ways modern humans build and maintain sleek, fit bodies. Or so I told my wife, Deb.

Rei-King by Deborah as Sammy looks on.

As with some of those other exercise routines, equipment is needed, simple equipment in the case of rei-king. Basically, the equipment is a pole, perpendicular to and at the end of which is a length of wood or metal, attached in its middle to the pole. From the lower side of the length of wood or metal are teeth, each a couple of inches apart and a couple of inches long.

Now for the exercise. You lift the pole just enough to bring the head off the ground, reach forward, and pull it towards you. For balanced exercise, it’s advised to occasionally switch which arm is most forward.

Resistance is the way to build up muscle and endurance. That resistance comes in the form of friction from material lying on the ground. This time of year, that material might conveniently be mown long grass or hay.

And Sie-Thing

I sometimes practice rei-king; more often I choose another exercise that complements Deb’s rei-king. I practice sie-thing (pronounced “sigh-thing”).

Like rei-king, sie-thing entails using one piece of equipment, a sie. The sie also has a single pole, in this case with two handles attached, one at the upper end and one about halfway down. A metal weight is attached at the bottom of the sie. The metal is a couple of feet long, curved, and sharpened on its inside edge. Muscle tone and strength is created by putting the left hand on the upper handle, the right hand on the lower handle, flexing the spine to the right and then unwinding it to the left while trailing the metal weight just above ground level.

Here I practice the ancient art of Sie-Thing.

Again, sei-thing can be made more rigorous, in this case by passing the sharp metal through tall grass or meadow plants. The taller the plants, the denser the plants, and the older plants, the more the resistance.

A side benefit of all this sie-thing is that grass or meadow plants get mown during the exercise. The fallen material drops right in place, providing an opportunity — for me or, more usually, Deb — to then practice rei-king.

By the way, either exercise is most enjoyable early in the morning. At that time, plants are turgid so the sharpened metal of the sie pops plant cells as it is drawn along. And the fallen plants, best for rei-king after lying on the ground a day or two to wilt, cling together nicely when heavy with dew. The cool morning air is also conducive to exercise.

Basil for Winter?

Many years ago I grew the few varieties of basil that were available and then wrote about them. My conclusion, at the time, was that taste differences between the varieties were minor, so the choice of what to grow should perhaps be on the fun of saying their names, which put Genova Profumatissima, Syracusa, and Fino Verde Compatto at the top of the list. What fun to wave my arms and speak their names!

Or, a variety could be chosen for the size or color of its leaf, whether for decoration or culinary use. “Spicy Globe basil, planted close together, makes soft, green mounds resembling a miniature boxwood hedge,” I wrote. Now we have yet another decorative form: Bonsai Basil.

To create a bonsai basil, a variety such as Spicy Globe — perfect, with its diminutive, closely spaced leaves — is grafted onto a special rootstock. That rootstock is another variety of basil, one chosen, in perfect world, to impart to the grafted plant vigor, disease resistance, and hardiness. Periodically shearing such a plant keeps up appearances even as it provides basil for flavoring. Over time, the trunk even turn woody.

Even better, carry on the fun and the flavor through winter. Basil is perennial in the tropics but generally does not fare well in the cool, dry air, and relatively dark conditions of a northern home in winter. All of which calls out for a vigorous, disease-resistant, hardy plant. A grafted basil. Grafted basil, even more than grafted tomatoes, are very much the new kid on the (grafted) block.

A few weeks ago I was given a couple of grafted bonsai basil plants and I’m planning to grow them as perennials. It turns out that my plants are on a rootstock called Nufar which is resistant to fusarium disease. My soil doesn’t harbor basil fusarium disease, so that rootstock is of no benefit in that department. Perhaps it will help get the plant through the long, dark winter indoors anyway.

New rootstocks that could impart vigor and hardiness to help get a bonsai basil through winter — indoors, of course, around here — are on the horizon.

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Ah, fusarium. Reminds me of last week’s patting myself on my back about my conquest of pea fusarium, which has plagued me for years. Well, between last week and this week, fusarium has again reared its ugly head and the vines have yellowed. I did get a decent crop, however. Looks like management rather than conquest will be the key to annual harvests of peas.

“In Lee’s Garden Now” has a New Home!

July 14, 2014/31 Comments/in Gardening/by Lee Reich

You can now find “In Lee’s Garden Now” right here on my website:

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