STEPPING INTO SPRING

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Cleanup Time Re-Starts in Veggie Garden

Warmer weather, even if it’s not all that warm, makes me feel like spring is just around the corner. The ground — in my vegetable beds, at least — isn’t even frozen, no doubt because water doesn’t linger long in the well-drained soil and because the dark-colored compost blanket I laid down in autumn sucks up the sun’s warmth.

So yesterday seemed like a perfect time to continue the garden cleanup that screeched to a halt when frigid weather struck, and some snow fell, a couple of months ago. Old cabbage heads that never quite ripened were laying on the ground like ratty, pale green tennis balls (with stalks attached). The four-foot-high stalk of one Brussels sprouts plant, stripped in autumn of its sprouts, stood sentry like a decrepit soldier in the same bed.Kale in winter

Of course, kale also still stood, except for those that flopped to the ground under their own weight. The latter were mostly the variety Tuscan (Lanciata). The Dwarf Blue Scotch plants, which I think taste better, stood more upright and compact, helped along, I’ll admit, with some bamboo stakes pushed into the ground next to them back in summer. I dug up the Tuscan kale plants and stripped yellowed and flaccid leaves from the Dwarf Blue Scotch plants. My guess is that by April they’ll be unfolding new, tasty leaves.

Stepping over to another bed, I twisted or coaxed out, with the help of my Hori-Hori knife, stumps from harvested lettuce and Chinese cabbage. A row of arugula in that bed showed enough life to awaken in spring with fresh, new leaves. I left it.

All this cleanup gets a jump on spring and removes debris that might harbor insect or disease pests that could infest or infect this season’s plants. The debris went into my garden cart and thence to the compost pile. The winter pile doesn’t heat up, so I’ll give the bacteria, fungi, actinomycetes, and earthworms two years to get their jobs done, killing off any “bad guys.”

Cursed Voles!

Stepping over to the remains of the endive bed that I planted towards the end of last summer and began harvesting in October — what havoc has been wreaked!

The bed had been covered with a tunnel of clear plastic and row cover to provide extra warmth to the plants in cold weather. Extra warmth also to some furry creatures, it seems.

Taking off the cover, I saw a bed riddled with tunnels along with the scattered remains of unharvested endive plants. This has happened in the past; something about endive seems particularly attractive to the furry creatures (and to me), which I assume are voles, which are mouse-like creatures.Endive with mouse damage

My garden must be vole heaven. The cat rarely hops the garden fence to hunt because she has to cross the DMZ zone to get to the garden, and she’s scared of our dog, Sammy. The compost-enriched soil has plenty of earthworm for good eating, as well as all the tasty, organic produce. So far, though, the voles have been satisfied with just the endive.

Short of planting the cat in the garden, which Sammy can’t enter, my plan is to do extensive trapping. One web site recommendation for a small garden is for twelve traps baited with oatmeal and peanut butter, or with apple.

As consolation, vole populations are said to decline after 3 to 5 years. It’s almost time, although the declined population might still be too many for me. And all is not bad with voles; they help stir the soil to distribute nutrients.

Pre-Season Warmup

While in the garden, I also did some pre-season weeding. Creeping Charlie, which enjoys cool weather, is always sneaking in here and there once I turn my attention away from the garden.

All this garden cleaning and straightening up isn’t all for practicality. It makes the view of the garden each morning from my second floor bedroom window prettier.

 

OF FLOWERS AND TEMPERATURES

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Flower, You Hoya

I probably shouldn’t admit this, but some plants suffer much neglect in my hands. My aloe, for example, has occasionally gone a whole year without a drop of water.

Hoya, also known as wax plant or Hindu rope plant, is another of my neglected plants. This plant is about 25 years old and has sat in the same pot in the same location for the past 15 years. The pot is only 3 inches square, dwarfed by the 3-foot-long “Hindu rope,” a single stem along which grow thick, green, involuted leaves. The hoya sits on a west-facing windowsill of a tower window in my house, and the lanky stem can drip down another 2 to 3 feet before it’s got to be shortened to keep from being bumped by anybody beneath it. One reason the plant gets watered so infrequently is because watering involves pulling out and climbing a ladder stairway to get to and gingerly water the relatively small pot.Hoya stems

Another reason for the neglect is because hoya is a succulent whose thick fleshy leaves store water. The plant is more likely to die from too much water than too little.

Although I occasionally glance admiringly at the stem tracing down the wall, there are time periods when hoya grabs my attention. That’s when it flowers. The flowers arise in sprays of about a dozen, pinkish, tubular blossoms, each looking as if has been sculpted from wax. Not only are these flowers pretty, but they also emit the most delicious aroma of chocolate.

I’m not sure when or why my hoya flowers. Failure to bloom can be attributed to, according to reliable sources, “over-watering, over fertilization, insufficient sunlight, or plant immaturity. “ Ha! My guess is that a period of consistent, but not excessive, watering following the dry spells would coax the plant to flower. Now might be the time to start watering because, perhaps in celebration of lengthening days, the plant has, after all these years, sprouted a new shoot.

I’ll go and water the hoya right this minute.

And The Temperature Is . . . ?

“You never miss the water till the well runs dry,” goes the line from the old blues tune. In the same vein, you — or I, at least — never miss the thermometer till it breaks. I never realized how tied I was to the temperature until the number boxes on my digital thermometer started reading “- – – – -.”Digital thermometer, malfunctioning

Thermometers have come a long way since the liquid-in-glass ones that served so well for so many years mounted outside so many kitchen windows or on porch posts. You had to get close to read them, and they picked up some heat from proximity to the house.

After that came indoor-outdoor ones, using the same principal but with two glass columns. The “outdoor” column is fed by a thin tube threaded through a small hole in a window frame and ending with a sensing bulb. These thermometers let you essentially get your eyes further from the sensing portion.

Then came digital versions of both types of liquid-in-glass thermometers. Digital thermometers are just the ticket for those of us who like to know if the temperature is 31.4° F. or 32.2° F. Not that the sensors of these thermometers were necessarily accurate to 0.1° F (as stated, sometimes, in the fine print), but they did give a feeling of exactitude.

Still, all these thermometers measure temperatures in or near the house, unless you mounted one on a post out in the garden and kept running out to check the temperature. Or, you had a liquid-in-glass thermometer that registered the minimum and maximum temperatures since the last reading. As you might guess, I have one, have had it for over 30 years, in fact. Two sliding, iron indicators are pushed by the expanding fluid, with one indicator staying where it is pushed to its high point, the other to its low point. High and low temperatures are indicated for the period since the sliders were last reset by being slid back with a magnet against the fluid. Very elegant and very accurate, but you still have to run out to the garden to read the present temperature.Minimum-maximum thermometer

Enter wireless, digital, minimum-maximum thermometers, the ultimate in temperature readiness. With this thermometer (which, as you might have again guessed, I own), I can read present and extreme temperatures from the warmth of my bedroom. Except when they stop working. Then you really miss knowing the temperature to within a tenth of a degree.

Epilogue

Epilogue: Yes, I checked and changed the batteries. Customer support, last time I got through to them, tells me I have to use fresh batteries, not the rechargeable ones. And I have to take all the batteries out for 15 minutes. Then, while the outdoor and indoor sensors are 3 to 5 ft. apart, I have to first put in the outdoor sensor’s batteries, followed by the indoor sensor’s batteries, and let the sensors “communicate” for 20 minutes. Etc., etc. The thermometer still doesn’t work. Perhaps I should click my heals together three times. I bought a new, and, I hope, better one.

THE WEATHER WON’T PUSH ME AROUND

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Breaking (Pruning) Rules

Snow squall or not, I just had to get outside. Not enough snow for a cross-country ski, but, after too much time indoors, I had to do something outside.

I was driven to break a fundamental rule of the garden. I pruned, and that’s a no-no. Pruning is best delayed until at least after the coldest part of winter is over, ideally closer to the time when warmth and sun are stirring buds to swell in preparation for their final burst. I did rationalize that any pruning now would leave me that much less to do amidst the hubbub of spring gardening activities.

I wasn’t indiscriminate in trespassing this Rule of Gardening. The plants that I pruned were gooseberries, which are very cold-hardy plants so are unlikely to suffer any cold damage as a result of untimely pruning. Also, no need to wait, as is done with peaches, for growth to begin to see which branches have died back from winter cold; none ever do so on a gooseberry bush.

Pruning without spring breathing down my back made for a very relaxed pruning session. I had plenty of time to pay attention to details and prune a little differently than in the past.

Gooseberries bear fruits on stems that are 1-, 2-, and 3-years-old, so the usual method of pruning is to cut away any stems more than 3-years-old and remove all but six of the sturdiest 1-year-old stems. The pruned bush, then, is left with a half-dozen each of 1-, 2-, and 3-year old stems. Each year a bush is renewed as oldest stems are removed, and new grow kept vigorous and healthy as excess young stems are thinned out.

Gooseberry before & after pruning

Gooseberry before & after pruning

The gooseberry bushes always bear many more berries than we can eat, and their weight bows the branches to the ground. So this year I decided to also prune each side branch on the older stems back to a couple of inches long. I’ll reap fewer berries, but those that remain should be larger and more accessible among the thorny stems.

Great Gooseberries

Is it worth mentioning such details about growing gooseberries? After all, who eats gooseberries these days? To most people, a gooseberry is a small, green, tart berry suitable only for pies, jams, and fools (a dessert made by folding cooked, sweetened, sieved gooseberries into whipped cream).A bowl of fresh gooseberries

If small, green, and tart is your idea of a gooseberry, you’ve never tasted a so-called dessert gooseberry. Dessert gooseberries are sweet and flavorful right off the bush; they are, as Edward Bunyard wrote almost a hundred years ago in The Anatomy of Dessert, “the fruit par excellence for ambulant consumption.” (He was from England, where gooseberries are more appreciated and known than here.)Gooseberry varieties on a bench

Only certain gooseberry varieties warrant the label “dessert gooseberry,’ of which I grow about a dozen varieties. My favorites include Hinonmakis Yellow, Poorman, Black Satin, Webster, Red jacket, and Captivator. Their sweet flavors carry wine-y overtones and reminiscences of plum or apricot. Some have soft skins, others have firm skins that explode with the flavorful, sweet juice when you bite into them. I devote a whole chapter to the history and varieties of gooseberries as well as how to grow them and where to get them in my book Uncommon Fruits for Every Garden (available from the usual sources and, from me and signed, at my website).

Back Indoors, But Still Gardening

Frozen fingertips eventually drove me back indoors. But I’m now on a gardening roll, spurred on further by a box of seed packets that arrived in the mail.Lettuce seedlings

Lettuce, claytonia, and celery from the greenhouse have been filling our salad bowls all winter. As these plants wane or go to seed, we’ll need more. So today I sowed seeds of Black-Seeded Simpson, Romaine, Buttercrunch, Blushed Butter Cos, and Majestic Red lettuces. Some I sprinkled into seed flats that can be kept warm for quick germination. Some I sowed right in the ground beds in the greenhouse; they’ll germinate more slowly but hold their quality longer than those that are pricked out from seed flats into “cells” and then into the garden.

Sometime soon, I’ll grab my pruning shears and get back to the gooseberries. And then on to the grapes, the kiwis, the apples, the pears, the . . . 

IN WITH THE NEW, STILL WITH THE OLD

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Scale Attack Beginning!

As if to ring in the new year, scale insects are starting to make their presence known. These insects crawl around as babies, find nourishing spots on leaves or stems, insert their feeding tubes, and then spend their days sucking plant juice. Carbohydrates and sugars are what result when sunlight and chlorophyll get together, so longer days may already be making plant sap sweeter and more plentiful, much to the liking of these suckers.

Armored scale on staghorn fern

Armored scale on staghorn fern

I encounter two kinds of scales on my houseplants. Each armored scale looks like a small, raised, brown tab. Cottony cushion scale looks like a small tuft of white cotton. As either kind feeds, it exudes a sweet honeydew that drips on leaves, furniture, and floor, and eventually becomes colonized with a fungus that airbrushes those sticky drippings an unappealing smokey haze.

(Scale insects are often problems on trees and shrubs outdoors. I’ve never had any problems outdoors probably because natural predators, of which scale insects have many, can do their job. Once indoors in autumn, houseplants lose the benefits of these natural, outdoor predators. )

Repeated sprays last autumn of “horticultural” oil smothered the creeping, crawling baby scales as they were looking for homes on houseplants. I do all this spraying outdoors, where it is most convenient, before the plants come indoors for winter. None have turned up yet on the kumquat or the staghorn fern, both of which have been scale magnets in the past. I don’t see any on the bay laurel, another magnet, but I do see and feel the tell-tale sticky honeydew.

And . . . Counterattack

Cute, little white tufts of cottony cushion scale are starting to dot the undersides of strawberry guava’s leaves. It’s not surprising: I received this plant last autumn, already with scale, and it was too late then to start spraying with oil. As autumn progressed, the undersides of its leaves became increasingly covered with those white tufts.

Cottony cushion scale

Cottony cushion scale

Repeatedly, over the last few months, I have fought back the buggers mano a mano by dipping cotton swabs in alcohol and methodically cleaning them off each leaf. (The plant is young and its leaves are large and few.) The last cleaning was especially thorough but some eggs evidently survived. Time to get out the alcohol and swabs again.

Mmmm, Tomatoes, In Planning Stage

Like the scale insects, I feel the distant tug of spring and spring seed orders are complete. With most vegetables and flowers, I’m pretty picky about variety so have to rely on mail order sources for my seeds.

And especially so with tomatoes: I refuse to waste time and space growing anything but the best tomatoes (to me), which makes me very wary of trying new varieties. My own tried and true varieties — flavor is what I’m after — include Belgian Giant, Sungold, Anna Russian, San Marzano, Amish Paste, Rose de Berne, Nepal, Valencia, Cherokee Purple, and Blue Beech.Heirloom tomatoes

Every once in a while I’ll also grow a few others, but only if they come highly recommended from a reliable source and especially if they are an “oxheart” or “black” fruited variety. Not even worthy of consideration is any “determinate” variety because their leaf to fruit ratio is too low for good-tasting fruit. The seed catalog or seed packet itself should say whether a variety is determinate or indeterminate. This year’s tomato newbies include Rosella Purple and Dwarf Sweet Sue, both recommended by a reader of this column.

I highly recommend growing tomatoes from seed. It’s easy, especially if the seeds are sown in a timely manner, which is about 6 weeks before the average date of the last killing frost of spring — about April 1st here in USDA Hardiness Zone 5.

 

Onions, Last Year And This Year

It’s really not all that early to be ordering seeds. My date for sowing onion and leek seeds is February 1st. New York Early, Copra, Sweet Spanish, and Ailsa Craig are three onion varieties that did well for me last season, and will be returning for an encore. Last summer’s onions still hang in braids from the basement rafters, ready to be pulled off as needed to chop into a pan for roasting with sweet potatoes, into the soup pot with chickpeas and kale, and other savory dishes for weeks to come. Onion braids in basement

 

EVERYTHING’S EASY, FOR NOW

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An Easy Orchid

Orchids are one group of plants I’ve regularly sidestepped. It seemed to me that if you grew orchids, you became crazed over orchids, to the exclusion of other plants. You then fill your home with as many of the over 20,000 species as you can cram onto your windowsills. I feared being led down that path.

My sidestepping took a turn into orchid-land 25 years ago when a local orchid enthusiast gave me a plant of Odontoglossum pulchellum, which I today learned has also been called lily-of-the-valley orchid. But more importantly today, the plant is in bloom. Blossoms from this plant are no rare occurrence; it’s bloomed every year for about the past 20 years, some years around now and other years waiting until February to unfold.Odontoglossum pulchellum orchid

Odontoglossum pulchellum doesn’t sport knock-your-socks-off, traffic-stopping blossoms; instead, they have a soft, subtle beauty. Right now, delicate, arching flower stems rise up from clusters of torpedo-shaped, green pseudobulbs that are perched up out of the “soil.” Eight to 10 dainty, waxy, white blossoms line up along each flowering stem and waft a sweet fragrance, more like paper-whites than lily-of-the-valley to me, that transports me to spring.

I get all this for very little effort and without becoming orchid-crazy. For years, I didn’t know the name of my plants so couldn’t even look up how to grow them. Rather than pot them up in any special orchid soil, I merely mix an equal volume of wood chips from my outdoor pile into my regular, homemade potting soil, along with a bit of soybean meal for extra nitrogen. I keep the plants in a sunny window in winter and sometimes move them outdoors in summer, dividing and repotting the pseudobulbs to make new plants.

For this bit of effort, I get fragrant, white blossoms every winter, and they last for at least a month. Odontoglossum pulchellum is easy to multiply yet I’ve happily managed to restrain myself to keeping only 3 or 4 plants after I’ve divided and repotted them each spring.

Easy Celery

Growing good celery demands a gardener’s greatest skill, and this year, in the greenhouse, I have the finest celery I’ve ever tasted or grown. The stalks are large, thick, juicy, even a little sweet. Unfortunately, I’m not sure I can take credit for this horticultural achievement.

Every summer I sow celery seed to transplant into my minimally heated greenhouse to provide stalks for salads and soups throughout winter. I do take credit for selecting a good variety: Ventura. I also take credit for providing good soil conditions; each year I slather an inch or so of ripe compost on all the beds in the greenhouse. And I’ll take credit for providing timely watering, with drip irrigation until a couple of weeks ago and by hand through winter.Self-sown Ventura celery

Ventura is an open-pollinated, rather than a hybrid, variety, which means that I can save my own seed for replanting each year. Beginning a few years ago, I’d allow one or two of the greenhouse Ventura plants that began to form flower umbels to do their thing and make seed, which they did prodigiously. I’d collect seed for planting the following season’s outdoor and indoor celery.

Some of those seeds would drop to the ground and germinate right in the greenhouse. These “volunteers” sometimes grew into seedlings as good or better than the plants I would later transplant back into the greenhouse.

So a couple of years ago I decided to let the celery self-sow freely in the greenhouse. Later in winter, I’ll transplant some of those seedlings into pots for eventual planting out in the garden.

In the greenhouse, I thin out excess seedlings, keeping the largest ones, which are already large enough for harvest. The stalks, especially welcome in winter, are, as I wrote above, “large, thick, juicy, even a little sweet.” I like to think I had a hand in horticultural achievement.

And Nothing To Do (For Now)

Nothing like a little snowfall to clean everything up in the garden. December 11th was the date of the first snow, followed by a second one on the 17th. The white blankets covered the pile of crocosmia leaves lying on the ground and waiting to be carted over to the compost bin, some weeds that sprouted in the mulched area beneath the dwarf apples, some of the smaller plants I haven’t yet cleared from vegetable beds, and numerous other messy distractions. The whole view was knit together in the sea of whiteness.Winter garden scene

Spells of warmer weather and bright sunshine have eroded away some of the snow, mostly taking the fluffy, white lines and dots that rested atop fences and their fenceposts. The ground, as I write, is still pretty much covered in a white blanket. While I’m enjoying the wintry scene, I can forget about about the few odd jobs still left to do that are patiently waiting beneath the the snow.

FREE DRIP IRRIGATION WORKSHOP IN PHILLY

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Learn about a way of watering that increases productivity, saves water, lessens diseases, and is easily automated. I’ll be holding a DRIP IRRIGATION WORKSHOP in Philadelphia on January 19, 2017 @ 6pm at PHS Town Hall, 100 North 20th Street (20th and Arch streets), first floor. The workshop is free.

GARDEN DREAMS AND REALITY

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Figs (Cuttings) Galore!!

Cold weather and short days have put a not totally unwelcome lull in the gardening year. Nonetheless, I wander into the greenhouse occasionally just to drink in the sight and smell of lush greenery suffused in warmth and humidity, and to pull some weeds. The figs in there could use some pruning; they are dormant and leafless and need all stems cut back to 3 to 4 feet in height.Pruned fig tree

Gardening lull or not, I can’t just toss those cut stems away, putting them to waste. Each stem can make a whole new tree, and fairly easily. So I set up a little propagator for rooting some of these “hardwood cuttings.”

Being leafless, the cuttings lose little water so have no need for the high humidity demanded by softwood cuttings, which are cuttings taken while plants are actively growing and leafy. Any cutting, hardwood or softwood, does need its bottom portion, where roots will form, cozied in moisture and air. Some people just plop stems into a glass of water. That works for easy-to-root plants, like fig, as long as the water is occasionally changed so bacteria don’t build up and the roots get some oxygen from the freshly drawn water. Roots formed in water are morphologically different from those in soil, so the eventual and inevitable transfer to soil must be done with care, with attention to root breakage, aeration, and moisture.

My cuttings will root directly in soil, or a “soil” of some sort, actually a soil-less soil similar in makeup to most commercial potting mixes. This soil is nothing more than a mix of equal parts perlite, a “popped” volcanic rock, and peat moss. The perlite is for aeration; the peat moss is to hold moisture. (Coir, a byproduct of the coconut industry, or leaf mold could be substituted for the peat moss.)

Now here’s the cool part: After filling a large flowerpot with the rooting mix, I scooped out the center and put into the hole a smaller flowerpot. That smaller flowerpot has to be terra cotta and unglazed. It also needs it’s drainage hole plugged; some moldable wax, saved from when my daughter had braces, worked well. (I knew I had saved that wax all these years for something!) Rapping the large pot and pressing lightly on the soil ensured good contact and a continuous capillary connection between the water in the inner pot, the porous wall of the pot, and the surrounding soil.Fig cuttings in home made propagator

I slid the cuttings into the circle of soil with only one or two upper buds showing. Until leaves appear, and there’s no rush, the only attention the pot needs is to keep the inner reservoir of soil filled with water. Once leaves appear, the cuttings need light.

Sometime I’ll have to figure out what to do with all my new fig plants.

A Dream Breaks The Lull

New plants in the wings could have been the spark for a horticultural dream the night following setting up the propagator. In this dream, I lived in a large, modernistic house, the most significant features of which were its 3 stories and large, south-facing windows. I evidently wasn’t all that familiar with the house because I wandered around in amazement.

Most amazing were the plants sitting in the windows: potted fruit plants of all sorts, everywhere I turned. In one window was a potted pawpaw tree, in another a peach, then a guava, and still other fruits in other windows. Turning to go down the stairway from the uppermost floor, I came upon small pots of strawberries. (The floors themselves were broad expanses of polished wood and furniture was sparse or absent.)

Strawberry guava

Strawberry guava

Most amazing was the shadow of a lush plant hanging in front of a shaded window. Coming closer, I saw that the plant in the hanging basket was a grape vine, a compact-growing one and that was loaded with tight bunches of delicious, ripe grapes.

Much of the dream is not far-fetched. True, I don’t live in a large, modernistic house of 3 stories. But some of my windows are, in fact, home to such edibles as bay laurel and rosemary. I even have some fruiting plants, tropical and subtropical ones such as Meiwa kumquat and Golden Nugget tangerine rather than pawpaw, grape, and other temperate-zone plants that need to experience winter.Meiwa kumquat plant

A strawberry guava I once grew gave me good harvest in late autumn. Kumquats ripen in early winter. I look forward to my first tangerine and Meyer lemon harvest. Fruiting takes energy, so all these fruit plants sit near sunny windows. Indoor fruiting by a shaded window only works in dreamland.

Awake, Finally

In that same dream, I was in school. (I spent an inordinate number of years in school.) In the dream, I couldn’t keep track of my school assignments, even what classes I was taking or where. I was too preoccupied with caring for all those plants in all those windows at home.

It was good to wake up to a gardening lull.

NUTS, SOME GOOD, SOME BAD, AND NEW(!) PLANTS

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A Good Harvest, But . . .

The black walnut harvest was abundant this past fall. Back in October, we gathered about a dozen 5-gallon buckets of of unhusked nuts, and, after husking, cleaning and drying them, set them in the cool, dry, squirrel-proof loft of our garage/barn (gabarn?).

The nuts are now sufficiently cured and ready for cracking. Two tools have made quicker, easier, pain-free, and more effective the once difficult and thumb-threatening job needing a concrete floor and a hammer. The Master Nutcracker makes elegant use of cogs and levers. For any nutmeats still gripped in a piece of shell, a “diagonal cutting plier” nips the shell piece to create a fault line that opens to drop out a piece of nutmeat, or to twists off a piece not fully cracked.Black walnuts and Master Nutcracker

This year’s harvest was from two trees. Most was gathered from the ground beneath a decades-old tree. That tree grows on what, in spring, is periodically waterfront property when the swale that it borders fills with rushing water. The other tree sprouted in well-drained soil a few years ago at the edge of woods along the north edge of our property. Now with an 8-inch diameter trunk, it began yielding nuts in earnest only a few years ago.

The opening day of nut-cracking season has highlighted the difference in nuts. Nuts from the younger tree not only are significantly larger, but they’re all well-filled with nutmeats that come out in large pieces. The old tree has yielded too many nutmeats that are dark brown and shriveled, or totally dried out, black, shriveled, and inedible.Good nuts and shriveled nuts

Genetics could be at play. Although both trees are black walnuts, each is a distinct individual within the species. Water might also figure in. Periodic flooding in the spring might leave too many of the old tree’s roots gasping for air at critical moments in nut development. Perhaps the old tree is still recovering from being swamped in water a few feet up its trunk during hurricane Irene back in 2011.

Perhaps it’s age. Probably not. Black walnuts are long-lived trees and I assume their fecundity goes hand in hand with their longevity.

Up to a few years ago, the large, old tree bore regular and reliable nuts that were plump with nutmeats.

Winter Dreaming

You’d think, after gardening for so many years with sufficient room for planting, that I would have by now grown every plant I could possibly want. Not so!

Cleaning up my desk, I recently came across a pile of papers clipped together, my pile of “plants to grow.” Over the years, whenever I see a plant of interest in a magazine or newspaper, I’ve torn out the page to add to the collection. The same goes for plants I might come across on the web or in conversation.Plants to grow

Swelling over the years, the pile has become intimidating. Daring to look at it would force me to decide whether such and such still worth growing and, if so, where to plant it. If an ornamental plant, where to incorporate it harmoniously into the landscape? If an edible, where best to site it for convenience in care and harvest? And do I have time to care for yet another plant? If there’s a plant offering both good eating and good looks, how to . . . well, you get the picture.

Perhaps the approach should be the same that some guy with too large a collection of shoes or some gal with too large a collection of cars might take: Vow to get rid of one for each new one collected. Or not.

Now Really, What To Plant Next Year

Okay, I’ve segregated the pile of “plants to grow” into two piles, one for plants to order this coming spring, and one for plants to keep on the back burner.

At the top of my list are three daphnes. I already grow Carol Mackie (Daphne × burkwoodii) for its fragrance and white-picoteed leave; the new daphnes can share a bed with her. Briggs’ Moonlight (D. × burkwoodii) has the reverse leaves, white with a green-picotee — a nice foil for Carol Mackie. Joining them will be Summer Ice (D. x transatlantica), which has just a thin line of white on its leaf edges. Also February Daphne (D. x mezereum), this one for its rosy-purple flowers that open in early spring on leafless shoots. All these daphnes are attractive but their main draw, for me, is the flowers’ jasmine-like perfume. They will make sitting on the nearby deck an olfactory delight from early spring right through summer.

How can I resist a plant called roof iris (Iris tectorum), both for its flowers and low fountains of foliage? It tolerates cold or dry conditions, and grows in sun or shade, so would be a perfect addition in name, needs, and appearance for MY green roof.

Another perennial slated for entrance next year is royal catchfly (Silene regia), a native of American prairies with fire engine red flowers. My plan is to grow them from seed to get enough seedlings to  plant in part of MY meadow.

That’s all for the coming year. What, no fruits, one of my specialties? No, I have all I need. Hmmm . . . what about quince?

MY PONYTAIL GROWS, AND SEEDS ENTICE

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I Grow A Ponytail

A friend gave me a ponytail palm (Beaucarnea recurvata) decades ago, and up to this summer it looked something like a palm tree sitting atop a large onion. Or a long-leafed dracena plant whose stem, near ground level, had swollen almost to the size of a bowling ball. The plant looked very interesting, but not particularly attractive, and the sharp edges of its long, strappy leaves were grabbing at me every time I walked by too closely.

So last summer, I was going to toss the plant in the compost pile; instead, I lopped off its top to about 3 feet in height. What remained was nothing more than what looked like a tan bowling ball halfway immersed in a pot of soil with a inch-thick, bare stem tapering skyward from its upper side.My ponytail palm

After pruning, I ignored the plant just as I had done for the past few decades. Ponytail palm doesn’t crave attention. As testimonial to the ability of the bulbous trunk to store water, the plant went months between waterings. What’s more, it’s been growing in the same pot with the same potting soil for all these years, no small accomplishment with the bulbous base of the plant, rather than potting soil, occupying much of volume within the pot. And fertilization? A rare event.

Now for the good part: Since being decapitated, the ponytail palm has sprouted tufts of leaves in various places. A few new sprouts appeared near the top of the plant, just as most plants would do when the top bud or portion of a stem is cut back. A tuft also appeared lower down along the stem. And seemingly out of nowhere, a couple of tufts of leaves sprung from the rounded surface of the swollen bulb.

Over time, each of those tufts of leaves is going to elongate into a stem capped by a tuft of leaves.

The plant is more verdant and very attractive now, and I should be able to direct its growth to remain so. If not, I can lop back one or more ponytails and start again.

Ponytail, Down The Road

Ponytail palm is quite a dramatic site in its native, tropical haunts. There, the plant’s stem keeps elongating, lifting its mophead of scrappy leaves higher and higher. Tufts of leaves might sprout lower down along the stem, or from the base, just as did my decapitated plant. And the bulbous base — it keeps growing fatter and fatter.

Ponytail palm in Puerto Rico

Ponytail palm in Puerto Rico

In Puerto Rico, I’ve seen ponytail palms the were three feet across as ground level. My plant will get a new pot as soon as it bursts out of its old one. But eventually . . . ?

Seeds! Restrain Me

Years ago, the routine was that seed catalogues would arrive in the mail sometime after January and all of us gardeners would place our orders to receive seeds a couple of months later. Now, I have catalogs that have already been sitting on my kitchen table for a few weeks, with orders waiting to be finalized. And not primitively finalized, with pen and paper, but seamlessly, on the internet.Ordering seeds

Seed companies realized that the early bird gets the worm: We gardeners, once cold weather has set in, are likely to get seduced by any reference to fresh tomatoes, so are most likely to order from the first catalogs we see. All this is for the better, for me, at least, because my efforts to limit down time in the garden mean that I need to have seeds in hand and ready to sow that much sooner. I could sow lettuce seeds today, for harvest in the greenhouse. Onion and leek seeds get sown in seed flats at the beginning of February, lettuce for transplants to be planted outdoors, follows soon after that, along with pansies and snapdragons, and the march continues from then on right through September.

One thing that has not changed over the years is that I’m still enticed and thankful for what we gardeners have at our fingertips. From just a phone call, a few dollars, or a few computer keystrokes, plants from all over the world end up in my garden. How can I resist trying Ruby Mist Love Grass, Cajun Jewel Okra, and Blazing Stars this year, along with such old standbys as Buttercrunch lettuce, Blue Lake beans, and Lemon Gem marigolds?

CATS ON A COOL, GREEN ROOF

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Not Green Enough

I’m looking up at my green roof, my evergreen roof, and it’s not green enough. Literally. I had expected that by now the roof would be solid green. It’s not.Two cats on my green roof

The green of this roof was supposed to come from the plants growing on it. Because conditions up on the roof are very harsh, the plants I chose were tough ones, hens-and-chicks (Sempervivum spp.). Hens-and-chicks look like little cabbage heads of stubby, succulent leaves. Baby plants push out from around the mother plants, grow, and make more babies, and so on, ad infinitum. Or so I hoped.

The roof only has a couple of inches of “soil” on it and covers a porch, so has no heated space or insulation beneath it. If winter temperatures plummet to 10 degrees below zero, not uncommon here, temperatures within that thin layer of soil also plummet to 10 degrees below zero. If summer temperatures hit 95° in the shade, the soil, which is shaded at one end, also hits 95° — and more in the sunny end. The roof never gets watered, except by natural rainfall.

The hens-and-chicks have established and survived and spread. But not enough. By now, I expected the roof be packed solid with hens-and-chicks, with excess plants spilling decoratively over the front edge. But too much soil still shows. Part of the green problem is that hens-and-chicks are not all that green; the leaves are more pale blue-gray.

Enter Angelina

So I’ve been taking steps to green up the roof.

The first step has been introducing a companion plant for the hens-and-chicks. The plant, which I believe is ‘Angelina’ rocky stonecrop (Sedum rupestre), has been magically appearing here and there in and around my rock walls. Well, not magically. As with other succulents, ‘Angelina’ easily grows into whole new plants wherever any piece of stem or leaf merely drops onto the soil. Over the past few years, whenever I’m so inclined, I grab a few pieces of ‘Angelina’ and toss them up on the roof. They’ve rooted and spread, parading up there as forest-green patches.Sedum Angelina on green roof

I periodically get more serious with ‘Angelina’. “More serious” means filling some cell-type seedling flats with a “soil” of equal parts moist peat and perlite, and poking inch-long pieces of leafy ‘Angelina’ stems into the mix. After a winter in the greenhouse or a sunny window, those cuttings are rooted enough to plug into holes I dibble into the soil on the roof among the hens-and-chicks. The roof is a little more than 100 square feet. Each plant could potentially fill up a square foot in a couple of seasons, so 100 cuttings of this plant would do the trick and take up only a couple of square feet of space in their holding cells.Propagating Angelina plants

Another step to making the rooftop greener is to beef up the “soil.” The soil is actually a mix of equal parts peat and calcined montmorillonite clay (a.k.a. kitty litter, unused). The mix is heavy enough not to blow away, and the peat is relatively resistant to decomposition. Some shovelfuls of this mix periodically tossed up on the roof replace what’s washed away or settled.

The mix is lean in nutrients so, come spring, I could also beef up the rooftop with some fertilizer. Not much, though, because succulents are light feeders and too much fertility would encourage weeds.

Is Green Better Than . . . ?

I don’t get it. Green roofs are so “in” these days, for their green appearance and for their environmental green-ness. Sure, green roofs insulate rooms below from heat and cold. And green roofs capture and evaporate some rainwater rather than let it run down gutter pipes and into sewers or streams. The air above green roofs stays cooler than that above conventional roofs, so heat islands aren’t created.

But are the above good enough reasons to put plants on a roof? After all, good insulation also insulates, a lot better than soil and with a lot less weight. And how much water could a roof of succulent plants — plants known for their low water usage — evaporate?

Much as I love plants, I’d rather see solar panels on roofs. My green roof is for looks (and not sunny enough for solar panels).

And A Bow To The Weeds

My green roof is a testimonial to the tenacity of plants. Despite the leanness of the soil mix and its being initially pretty much weed-free, some weeds have colonized the roof. And they survive, despite the harsh growing conditions up there.Weeds on green roof

The weeds that came in weren’t succulents, but grasses and perennials such as foxtail grass and goldenrod. Every time I look up at the roof, I am awed at how these and other plants not only got there, but how they manage to survive there year after year.

Weeding up there would seem such a travesty — and be very difficult.