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Immigrants Welcomed

Sad to See This One Leave, ‘Til Next Year

“So sad,” to quote our current president (not a president known, so far at least, for his eloquence). But I’m not sliding over into political commentary. I use to that pithy quote in reference to the fleeting glory of Rose d’Ipsahan.

A little background: Rose d’Ipsahan was given to me many years ago by a local herbalist under the name of Rose de Rescht, which it soon became evident it was not. Rose d'Ipsahan in vaseDescriptions of Rose de Rescht tell how it blossoms repeatedly through the season; not my rose. I finally honed down my rose’s identity from among the choices suggested by a number of rose experts based on photos and descriptions I had sent them.

Under any name, Rose d’Ipsahan would be my favorite rose. Without any sort of protection, it’s never suffered any damage from winter cold. Insect and disease pests do it little or no harm. And rather than intimidating thorns, the stems are covered by more user-friendly prickles.

The best part of Rose d’Ipsahan is its blossoms, a loosely packed head of soft, pink petals that are attractive from the time the opening bud shows its first hint of pink until the head fully expands. Rose d'Ipsahan blossomAnd the fragrance! Intense, and my favorite of all roses. Rose d’Ipsahan is a variety of Damask rose and has the classic fragrance of that category of rose.

This rose was discovered in a garden in the ancient city of Esphahan (sometimes written as Ispahan, Sepahan, Esfahan or Hispahan) in Iran, making its way to Europe from Persia sometime in the early 19th century. Interesting that a rose claiming as home a part of the world with very hot summers, mild winters, and a year ‘round very dry climate does so well in my garden. And elsewhere; this is a cosmopolitan plant.

Why, the “So sad?” Because Rose d’Ipsahan blossoms only once a season. Then again, it does have a relatively long season — for a Damask rose. I’m thinking of making some new plants to plant near the east or north wall of my home where spring’s later arrival would delay the onset — and finish — of blossoming a few days after my plants in the sun. Rose d’Ipsahan also tolerates some shade. 

A Wild Italian

Another immigrant in my garden is arugula. Not your run-of-the-mill arugula (Eruca sativa), but a different species, this one usually known as Italian or wild arugula (Eruca selvatica). Italian arugula has a peppery flavor similar to common arugula, to me a little less sharp.

Italian arugula has it over common arugula in two ways. First of all,I think it’s prettier, with deeply lobed rather than mostly rounded leaves. Italian arugulaMore important, Italian arugula tolerates heat better. As my rows of common arugula are sending up seed stalks, the Italian arugula just keeps pumping out new leaves.

The native home of arugulas, common and Italian, is the Mediterranean, where their flavors have been enjoyed since Roman times. Perhaps more than just for their flavor. In his poem Moretum, Virgil has the line “et Venerem revocans eruca morantem  which translates to “and the rocket, which revives drowsy Venus’ [sexual desire].” Perhaps that’s why it was forbidden to grow arugula in monastery gardens in the Middle Ages.

It’s also been suggested that the reason arugula is often mixed with lettuce in a salad is to counteract arugula’s effect; lettuce contains the chemical lactucarium, a non-narcotic sedative and analgesic, structurally similar to opium. Lactucarium isn’t nearly as strong as opium, to say the least, because studies have shown none of the alleged effects from “lettuce opium,’ as the lettuce compound has been called. (I didn’t come across any studies confirming or denying the effects of arugula beyond good taste.)

Glad to Have These Immigrants

So there you have it, two immigrant plants well worth growing. I’m glad I welcomed them into my garden, and suggest you do so also.

Come Visit My Farmden

This Sunday, June 24th, 2018, from 1-4:30 pm my garden/farmden is open to the public as part of the Garden Conservancy’s Open Days program. The Garden Conservancy is an American nonprofit organization founded in 1989 and dedicated to preserving exceptional gardens and landscapes. The $7 admission cost to each Open Day garden helps fund their efforts. For more information about my farmden and other local gardens open that day (and through summer), go to https://www.gardenconservancy.org/open-days/garden-directory/springtown-farmden

My Dog and I Have Odd Tastes

In My Opinion . . .

Note: The following editorial comments represent the opinions of the writer and do not necessarily represent the opinions of the publisher.

I don’t understand the current — decades long, now — infatuation with the “stinking rose,” as garlic used to be called. Not to reveal my age, but I don’t remember ever seeing, smelling, or tasting garlic in my youth. Not that I didn’t; I just don’t remember it if I did. At any rate, in my family circle, at least, it would not have generated the undue enthusiasm it does these days. Whole festivals, for instance!

I don’t dislike garlic. Mostly, when I’ve used it, it’s flavor is lost when cooked. Except when roasting turns the texture satiny and the flavor bite-less; then it’s quite delicious spread on bread or baked potato, or mixed with vegetables. Mmmmm.

But still not worth planting. It’s my belief that many gardeners devote all too much space to growing garlic. Is home-grown garlic really that tasty, tastier than what you can pick off a supermarket shelf or from a bin at the farmers’ market?

I’ve seen very small vegetable gardens in which a third of the area was devoted to the stinking rose. For my money, I’d rather be picking fresh lettuce, asparagus, or peas — all of which taste significantly different and better within minutes of harvest than when bought from any market, farm or otherwise. Or peppers, tomatoes, sweet corn, or green beans, because I can choose the best tasting (to me) varieties to plant in my garden.

As you might guess, I don’t grow garlic — not in my vegetable garden, at least. Why devote even a square foot of space in that compost-rich, drip irrigated, sun-drenched ground to  such a thankless vegetable?

I do sometimes grow garlic in various patches of open ground in the large patch of gooseberries, grapes, and a miscellany of other plants behind my garden. The only improvement that soil experiences is annual mulching with autumn leaves, which has enriched the ground below with humus. But no irrigation, which the garlic, planted in early autumn and then harvested the following summer, hardly needs because it can run on rainfall that falls in autumn through spring.

Garlic doesn’t seem to get the hint that I don’t particularly want to grow it. Enough bulbils that form at the tops of scapes touch down each year to make new garlic plants. Most are spindly, giving rise to Lilliputian cloves. Garlic volunteer plantsBut if I want some garlic flavor in spring, I can pull stalks out of the ground, peel off the outer covered of leaf sheath, and chop up the ivory white lower portion for use. Many I just pull out and toss into the compost pile; the garlic is getting weedy.

Okay, you garlic lovers, go ahead and pelt me with tomatoes. But hold the garlic.

Sammy Stalking

My dog Sammy has grown very fond of stalks. Asparagus stalks. Why can’t he channel that stalky affection to the garlic sprouting behind my garden? Perhaps some culinary magic with garlic poured over his dog food and guided walks over to some of the growing clumps could bring him around.

I planted asparagus outside the fenced vegetable garden with the knowledge (ha!) that no furry animals would dine on it. Sammy has plowed his way through or gracefully leapt over the temporary chickenwire enclosure meant to keep him asparagus-free. A recently purchased electric fence should keep him at bay — also from the persimmons, another of his favorites, later in summer. Sammy & electric fence

Of Mulch Importance

On a more serious note, now, with recent rains maintaining good soil moisture, is an ideal time to mulch. Earlier this season, mulch would also have been good, except that it would have delayed soil warming and, hence, seed germination, planting and growth of annual vegetables and flowers.

Mulch spread atop dry soil has to be wetted before letting water percolate down into the ground below. Mulching chestnutsIf spreading mulch is delayed until the soil turns dry, all the more water will be required to give the soil below a good drenching.

A large pile of wood chips sits on the far side of my wood pile, compliments of local arborists. Day by day, I’m spreading it for an attractive, soil enriching, moisture sealing blanket over my soil — even around my volunteer garlic plants.

“Worms” Good and Bad

Nematodes Galore

The name ”nematode” doesn’t conjure up a creature that you’d normally want to make friends with. It’s other name, roundworm, seems even more repulsive and is, in fact, also a name applied more specifically to a nematode that infects humans and dogs. 

Like it or not, nematodes are all around us, with over 25,000 species described so far that  inhabit diverse ecosystems from thousands of feet deep in the Earth to mountain tops, and from deserts to rain forests. Many are visible only under a microscope; some are two inches long. A square yard of soil can be home to more than a million nematodes, and we humans can be host to about 35 species.

Do we want our plants to cozy up with them?

A number of nematodes infect plants, resulting in stunted growth and, often, swellings on roots or stems.

Soybean cyst nematode

Soybean cyst nematode

Their common names — root knot nematode, stubby root nematode, cyst nematode, lesion nematode — describe some of the symptoms. These plant pathogenic nematodes can do further ill by transmitting bacterial or viral diseases to plants.

I’m not particularly worried about nematodes in my garden. For one thing, they’re more prevalent in warmer climates. Also, good gardening practices, such as enriching the ground with compost, leafy mulches, and other organic materials, and crop rotation go a long way to thwarting such problems.

If I did have a nematode problem, or suspected one, I could reach into a quiver of “organic” solutions. Marigolds can suppress nematodes. Not just a plant here and there, though, but a solid planting of giant, African marigolds. Mustard has a similar effect, whether grown, like the marigolds, as a cover crop, or applied as a seed meal, which also happens to be a slow-release nitrogen fertilizer.

Chitosan, made from the shells of crustaceans and the active ingredient found in commercial products such as Serenade, reputedly bolsters plant defenses against nematodes and other pathogens. (My casual experimenting with Serenade against apple diseases found no benefit.)

Welcome “Worms”

In the same way that just about no one with an eye patch is a pirate, very few “nematodes” are bad guys. In the garden, so-called “predatory” nematodes are better than neutral; they are the “good guys,” preying on a wide range of garden pests.

Some of the most common beneficial nematodes are Steinernema carpocapsae, S. feltiae, and Heterorhabditisheliothidis bacteriophora. These three nematodes vary in their habits although they all attack a wide variety of garden pests. Steinernema carpocapsae is an “ambusher forager” that lies in wait near the soil surface for unwary pests to wander past. Heterorhabditisheliothidis bacteriophora is a “cruise forager” that moves around through various depths of soil, ready to pounce upon unsuspecting sedentary pests. The habitat and hunting behavior of S. feltiae nematodes is intermediate to the other two.

Waxworm releasing beneficial nematodes

Waxworm releasing beneficial nematodes

Beneficial nematodes can be purchased. To be effective, they must be shipped at the right growth stage and applied without their drying out. Even then, annual applications are frequently needed.

Some strains of the beneficial nematodes can survive and multiply in the soil year after year. I imagine that my garden soil has plenty of “good” nematodes; perhaps more would be better. Some day I may extract some of the “good guy” nematodes from my soil, multiply them, and then re-apply them to my ground.

For now, I intend to get hold of a starter supply of native, perennial nematodes and multiply my holdings, a process which I think will have the added benefit of being fun and interesting. The three kinds of nematodes extracted from soils in central New York, are available for purchase from http://blogs.cornell.edu/ccefieldcropnews/2018/02/28/discount-available-on-biocontrol-nematodes-to-protect-alfalfa-corn-crops/.

With nematodes in hand, a nematode host is needed if I’m going to multiply them. Waxworms, sold for fishing bait, are a convenient host. The waxworms get incubated with the nematodes which, after a couple of weeks, are rinsed free of the waxworms with water.

The aqueous suspension of nematodes is then ready for application. To prevent their drying out, they’re best applied in early morning or evening along with plenty of water. If all goes as planned, they should establish and multiply to kill such pests as wireworms that bore into carrot and radish roots, plum curculio that attack apple, plum and peach fruits, and any cutworms that attack just about everything.

Come Visit My Farmden

Last minute notice: Come visit my farmden, in real life, on June 24th. As part of the Garden Conservancy Open Days program, I’ll be hosting visitors between 1 pm and 4:30 pm on that day. For more information about my farmden and other local sites, go to the https://www.gardenconservancy.org/open-days/open-days-schedule/ulster-county-ny-open-day-2.

Invaders

Dare I Speak the Name?

As I was bicycling down the rail trail that runs past my back yard, I was almost bowled over by a most delectable aroma wafting from a most despised plants. Autumn olive blossomsThe plants were autumn olives (Elaeagnus umbellata), shrubs whose fine qualities I’m reluctant to mention for fear of eliciting scorn from you knowledgable readers.

Yet, you’ve got to admit that the plant does have its assets, in addition to the sweet perfume of its flowers. Okay, here goes: The plant is decorative, with silvery leaves that are almost white on their undersides. And the masses of small fruits dress up the stems as they turn silver-flecked red (yellow, in some varieties) in late summer. Autumn olive fruitThose fruits are very puckery until a little after they turn red, but then become quite delicious, and healthful.

(I included autumn olive in my book Uncommon Fruits for Every Garden, and also planted them — but that was before the plant became illegal here.)

Another asset of autumn olive is that it actually improves the soil, converting air-borne nitrogen, which plants can’t use, into soil-borne nitrogen for use by autumn olives and nearby plants.

This native of Asia, introduced into the U.S. almost 200 years ago, was promoted in the last century as a plant for wildlife and soil improvement. Decades ago I worked for the USDA in what was then known as the Soil Conservation Service (now the Natural Resource Conservation Service), an agency that not only promoted the plant but also developed varieties for extensive planting.autumn olive fruits in bowl

Autumn olive likes it here and has invaded fields throughout the northeast, the Pacific northwest, and even Hawaii. It’s an invasive plant. Don’t grow it! (But feel free to enjoy its aroma, its beauty, and its fruits.)

One of My Favorite “Invasives”

As autumn olive blossoms fade, the temporary vacuum in sweet-perfumed air will be filled by another plant, black locust (Robinia pseudoacacia). That aroma comes from the white blossoms that dangle in chains like wisteria blooms from this tree’s branches.Black locust flowers

Like autumn olive, black locust has other assets in addition to those offered by its blossoms. It’s a leguminous plant, like peas and beans, so, with the help of bacteria residing in its roots, also puts air-borne nitrogen into a form utilizable by plants. 

Black locust’s other assets refer to it when dead: The dense wood is very resistant to rot — much, much more so than cedar — and is very high in BTUs for burning. I converted all my garden’s fenceposts and arbors, which I had previously made from cedar and lasted only about 10 years, to locust.

I’m lucky enough to have a mini-forest of them growing along one edge of my property. I cut them when they are five or six inches in diameter, and in 10 or so years I have a new one to replace the cut one. It adds up.

Quick growth and the ability to resprout from stumps and grow in poor soil by “making” its own nitrogen makes black locust, like autumn olive, a plant not loved by everyone. Despite being native here in the U.S., black locust has been classified as a “native invasive.” The reason is that it was originally native to only two regions in the U.S., from which it has now spread far and wide.

Change Will Come

The classification of “native invasive” highlights the capricious legality and classification of invasive plants. Where is the boundary within which a plant becomes an accepted native? In the mountain that rises up just behind my valley setting, lowbush and highbush blueberry are thriving natives. But these plants would never turn up here on my land, except that I planted them. (And both thrive.)

Clove currant is another plant I grow, one that, in addition to bearing spicy fruits, is resistant to just about every threat Nature could throw at it: deer, insects diseases, cold, drought. And it’s a native plant, but native throughout the midwest, not here. Should I call it a “native?”

Black locust is such a useful tree that its spread was aided and abetted by humans. But it also would have spread, albeit more slowly, without our intervention. Even autumn olive, given enough time, might have hitch-hiked here in some way from Asia.

The Earth’s landscape is not static. Changes represent interactions of climate, vectors, chance, and time. Nostalgia may have us wishing for the view out the window to remain the same as it was when we were children, but that’s not Mother Nature’s way.