The Season Begins

Gentlemen (and ladies, and kids), start your engines. The 2014 gardening season has begun, here on the farmden, at least.

The day began with my lugging the big pail of potting soil from the cold garage to a warm spot near the woodstove. My home-made potting soil -- equal parts peat, compost, garden soil, and perlite, with some soybean meal thrown in -- is moist when I make it, so was frozen solid. Not usable or suitable for germinating seeds.

Once the potting soil defrosts and warms, I scoop it into a seed flat and a small plastic tub into which I’ve drilled drainage holes. Firming the soil in place with my Furrow Maker, a small board with spaced out,

The Furrow Maker in action

1/4-inch dowels glued to its underbelly, creates a miniature farm field. Into the tub’s “field” go rows of fresh onion and leek seeds (fresh is important with these seeds, which lose viability after a year or two), about 7 seeds per inch, which is enough to well populate the “field” without causing crowding. After the seeds are covered with soil and gently and thoroughly watered, the tub gets covered with a pane of glass and placed on a heating mat that provides gentle warmth of between 70 and 80 degrees F.

I could sow onion seeds outdoors in early spring. The onions I’m growing, and the ones all northern gardeners should be growing, are so-called long day (in fact, short night) varieties. Their leaf growth comes screeching to a stop in early summer’s 15 or

16 hour days. The plants shift gears and redirect their energy into pumping up growing bulbs. More leaves at that time means more stored energy available to swell up sweet, juicy bulbs. That’s what I want and why I go through the trouble(?) of early, indoor sowing. I’ll plant out the seedlings in early May.

The small seed flat gets similarly filled with potting soil and sown with seeds, lettuce seeds in this case. Greenhouse lettuce is still going strong but I want to have some transplants ready for when the older stuff peters out. A 4 by 6 inch flat with four furrows of lettuce seeds should provide all the lettuce transplants I need for many weeks.

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A greenhouse full of only lettuce could get boring. Other sorts of edible greenery currently share the space, and will continue to do so in the coming weeks. Some has been planted, and some has planted itself.

Among the planted greenery is a whole bed of kale and Swiss chard livened up with a couple of fennel plants. Also mâche, which usually plants itself except that overly diligent weeding in the greenhouse

Fennel, chard, lettuce, and kale in this bed

necessitated transplanting self-sown mâche from outdoor garden beds into the greenhouse last September.

Self-sown greenery includes claytonia (miner’s lettuce), minutina, and -- more familiar to most people -- celery. Claytonia doesn’t have much flavor but adds texture and color to a winter salad. The same goes for minutina, which is actually an edible species of plantain (the common lawn weed, not the banana relative). Celery plants are in various stages of growth. We’ve been eating the mature ones for months and the smallest seedlings will be ready for transplanting out into the garden in early May.

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So my friend Bob is over for a visit. It’s near lunchtime and he beelines for the freshly baked loaf

Celery for eating and celery babies for transplanting

of bread sitting innocently on the kitchen counter. Bob grabs a knife and already has a sandwich in mind. “Do you have any tomatoes,” he says. What? Tomatoes? It’s midwinter!

I guess he’s made the link gardening-greenhouse-tomatoes. Never mind winter. Sorry, not in my greenhouse in winter, for a few reasons.

Fruiting demands a lot of a plant’s energy. That energy comes from the sunlight. Even though the sun has been rising higher in the sky and for longer periods daily, its light is still paltry compared to midsummer sunlight. A bright summer day bathes the garden with about 10,000 foot-candles of light. My greenhouse, according to measurements taken at high noon on this crystal clear day, is bathed  with about 6,400 foot-candles of sunlight.

Natural sunlight could be supplemented with artificial light. Not a table lamp or even a bank of fluorescents, though. Light intensity falls off as the inverse square of distance from the light source; double the distance and you’ve got only one-quarter the intensity. So plants need to be close to the light source, which then will shade natural sunlight. Special high intensity bulbs are needed to make a dent in winter’s relative darkness.

And then there’s the temperature needed to raise a crop of tomatoes in February. For tomatoes, I wouldn’t want temperatures lower than in the 50s. My greenhouse heater kicks on at 37°F. Each degree of warming increases heating costs about three percent.

Winter tomatoes don’t seem worth the extra cost in dollars and to the environment from increased usage of gas or electricity. And they don’t taste that good. I can wait.

Cold? No Problem.

Brrrr! The mercury plummeted to nine degrees Fahrenheit in my garden a couple of weeks ago. Yet I was still harvesting fresh salad greens. And I don’t mean kale and Brussels sprouts; they’re tasty and still available in my “back forty,” but tender and succulent they are not. Likewise, I don’t mean turnips, carrots, or other root crops that can nestle in the relative warmth of the earth. (My root crops anyway were pulled and packed away into a box for winter storage.)

What I am talking about is lettuce, endive, and Chinese cabbage. These vegetables, which ARE tender and succulent, must have antifreeze in their cells to be able to remain so in the face of such cold temperatures. Actually, that’s not far off: With gradual exposure to increasingly colder temperatures, cold-hardy plants are able to move water out of their cells into the spaces between the cells, where freezing would cause less damage. Moving water out of the cells also concentrates the solution within the cells and -- if you remember from your high school chemistry -- concentrating a solution lowers the temperature at which it freezes. Warming weather reverses the process.

Mother Nature had a little hand from me, in the form of row covers, which are diaphanous blankets thrown over plants to offer them additional frost protection. Spun-bonded row covers let light and water pass

through. I’ve used these materials in spring and autumn for many years, but looking through the Harris Seeds catalog (www.harrisseeds.com), I came across a “point bonded row cover” which was said to give plants an additional 8 degrees or more of cold protection. That’s a lot.

A few weeks ago, I set metal arches (made from 5-foot lengths of concrete block truss reinforcement) over the rows, cut the row cover to 6 foot widths, and laid it over the hoops secured by additional metal hoops over the row cover. The material evidently is very effective; my guess is that endive and lettuce are cold-hardy to the low 20s and the row cover would bring protection down to the low to mid ‘teens. But this was 9° F.!

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Row covers represent a trade-off between cold protection and light transmittance. Generally, the  heavier the row cover material, the warmer the temperature under the cover and the less light reaches the plants.

So in early spring, I’ve use a 1.25 ounce cover to speed along growth of new plants. This cover lets about 70% of the sunlight penetrate and keeps plants about 3° warmer than outside the cover. In early summer, I use an even lighter weight material, 0.55 ounce, to cover my eggplants so flea beetles don’t ravage them. Eighty-five percent of sunlight makes it through this lightweight material.

The point-bonded row cover is a heavier material than row covers I’ve used in the past. Endive, lettuce, and Chinese cabbages are now snuggled under 2 ounce fabric. Only about 30% of the sunlight, which is sparse anyway this time of year, makes it through this material. But the plants are fully grown, so don’t need to grow. To just stay alive, now, they need cold protection more than light.

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So I’m driving along here in New York's Hudson Valley and what do I see growing wild along the

roadside? A cactus. A cactus growing wild outdoors wouldn’t be an oddity in Arizona, but New York doesn’t have the climate and soils usually associated with cactii.

The Eastern Prickly Pear or Indian Fig (Opuntia humifusa) actually grows wild throughout the eastern parts of North America. You’re most likely to come upon the plant growing in a sunny spot in well-drained soil. Not the one I found, though. This plant was growing on a rock face, which is well drained, on an east-facing slope right at the edge of woods. Not particularly sunny.

Prickly pear cactus can be oddly attractive, even edible. The pads, once the spines have been rubbed off (not with bare hands) can eaten be raw or cooked. The red fruits are also edible. The Opuntia species usually eaten is O. ficus-indica, which is not hardy in cold climates. Even that species never tasted that good to me so I wasn’t anxious to try eating any of the roadside plant.

Also, in New York, Eastern prickly pear is classified as an “‘exploitably vulnerable species,’" which is a plant likely to become threatened in the near future throughout all or a significant portion of their ranges within the state if causal factors continue unchecked.”

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I lied; I did pick off one fruit for tasting. It was seedy and flavorless. All was not exploitive, though, because I am planting the seeds.

Better than a Boxer and Goodbye to Mac

Check it out! New video up at www.youtube.com/leereichfarmden showing step-by-step preparation of weedless beds in autumn.

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Some people consider owning a Porsche Boxer to be a luxury; I consider crunching through winter snow to the greenhouse and picking a fresh head of lettuce to be a luxury. This lettuce-y luxury must be earned at a price that is more than monetary. It was a couple of weeks ago that I started paying for part of this year and next.

The goal is to harvest a head of lettuce every day from now through winter and on into next spring. That takes planning.

So at the end of August I filled a 4 by 6 inch seed flat with potting soil and sprinkled a different variety of lettuce into each of four mini-furrows. Covered with a pane of glass and watered, the seeds soon sprouted,

and after the sprouts grew for a week or two I delicately lifted individual seedlings out of the flat by their tiny leaves. Each sprout went into a waiting hole dibbled into a larger flat filled with potting soil, this time a flat where each sprout got its own cell.

Another payment: Today I spread an inch depth of compost in each permanent planting bed in the greenhouse. (Excepted were two beds, one awaiting the ripening of two more melons and the other that will be ripening cucumbers for the next few weeks.) Into the beds went seeds of various cool weather greens -- mâche, arugula, mustard, minutina (also known as erba stella), and baby bok choi -- as well as a few different varieties of lettuce.

Yet another payment: Towards the end of the month, I’ll lift out the lettuce seedlings that I transplanted into seed flats and plant them about 8 inches apart in any remaining beds.

All this planting may seem hectic or redundant but there is method to the madness. These greens tend to bolt (go to seed) when the weather is warm and days are sufficiently long. Sown too soon for winter, and they do just that. They’re ruined. On the other hand, autumn and early winter days are short and temperatures are cool to cold which makes for very slow growth. If plants are too small going to autumn, they don’t grow large enough to amount to anything until February or March.

So plants have to be big enough, but not too big going into autumn. How big is best depends on the plant, in some cases even the variety of plant. Plants grown from seed planted directly in the ground seem to bolt less readily than plants grown from transplants. All of which is why I grow a little of everything every which way at various times.

Although I’ve gardened for decades, my greenhouse experience spans only 13 years; perhaps after another 10 years I’ll know just when to sow everything to ensure a steady supply of fresh salads all winter.

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“Payment” for my lettuce-y luxuries is too strong a term. All this ground preparation, sowing, and transplanting really just extends the fun of gardening into the winter months. And, did I mention weeding. What fun it is in winter. Really!

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It is with regret that I thinned out excess turnip seedlings this morning. Not that I regretted tossing away the green tops. What I regretted was not being able to share the tops with Mac, my old neighbor. He died late last year.

Mac grew up in the South and wended his way north harvesting fruits and vegetables. He eventually

settled in the north, in a small house that practically butted right up against my garage.

You couldn’t conjure up a more disparate pairing: me, a short, white guy from the suburbs of New York City, and Mac, a tall, black guy from deep in the South. We were drawn together by our love for gardening. Perhaps I have some roots in the South (doubtful) because he and I also shared our love for okra and greens. A frequent summer refrain over the hedge separating our yards was, “How many bags of okra you got in the freezer so far?”

Mac and I always got along. When a pin oak on our property line was threatening to shade my plum trees, I hadn’t even finished my question before Mac answered, “Just take it down.” Some visitors here thought the ramshackle sheds and assorted objects scattered over his yard were an eyesore. I looked upon them as nothing more than “different strokes for different folks.”

Mac eventually moved into an apartment in town and, as he aged, his gardening capabilities diminished. But not his love for gardening, being in the garden, and eating from the garden. Each spring, he would bring me some seeds that he thought were worth growing and I would raise “starts,” as he called them, for both of us.

Because I’m partial  to the turnip varieties Purple Top White Globe and Oasis, I always got my own turnip seeds. The seeds are small and no matter how thinly they’re sown, they always come up crowding each other. So the only way to get nice, plump turnip roots is to thin out the plants when they are still young.

I like turnip greens but Mac liked them more. Every year, I’d collect the thinnings into a bushel basket, then hand them over to Mac who would sit outside his front door washing them, then cook and freeze them.

After he moved to an apartment, he started washing them here to bring home. As he aged, I started washing them while he watched. And finally, I started bringing him bags of washed, boiled, frozen turnip greens.

This year, I’ll just compost most of the greens. Bye, Mac.

THINGS NOT SO ROSEY

Lest anyone believe that everything is always rosy here on the farmden, it ain’t so. True, right now, vegetable beds are brimming over with crisp, tender heads of delicious lettuce, broccoli, endive, and cabbage, and upright stalks of aromatic celery and leek. And, yes, the floor of the greenhouse is verdant with developing, young lettuce, large, leafy kale and Swiss chard plants, and 10 foot tall fig trees bearing fruits

But let’s start with those figs, three different varieties of which live with their roots right in the ground in the greenhouse. Green Ischia has been bearing large, copper-colored, firm, sweet fruits for weeks and weeks. No problem here.

About 8 feet from the Green Ischia grows a Brown Turkey fig. It kicked off the season as usual, loaded with fruit that started ripening in early September. Then scale insects moved in, dotting stems and eventually the fruits with their gray bodies, and sucking the life out of everything until the harvest petered away to almost nothing

About 8 feet from the Brown Turkey tree grows another fig tree, Kadota, with fruits lined up along its stems also. From past experience, I expected problems with Kadota. It’s a delectable and heavy yielder that thrives in hot, dry climates. The greenhouse is hot but hardly dry. With the high humidity in there, almost every Kadota fig has turned to a fuzzy, white ball just before ripening.

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The Kadota problem is the one most easily solved. That white fuzz is fungal, and the fungal culprit is probably Botrytis cinerea, a cosmopolitan fungus boasting a slew of host plants. Botrytis claims credit, for example, for a wet spring’s fuzzy, gray strawberries, for a wet summer’s fuzzy, gray raspberries, and, in a more benevolent form, for “noble rot” of grapes, which makes for a sought-after wine. All sorts of ominous chemicals can control botrytis. More benignly, on stored fruits at least, it has been controlled with a 1% solution of baking soda, or an atmosphere of either 15 ppm acetic acid (i.e. vinegar) or 75 ppm cinnamaldehyde, the natural flavoring of cinnamon

Trying to control disease on my Kadota figs with sprays would be an uphill battle considering the perfect conditions for botrytis: a very susceptible variety of fig, a very humid environment, and presence of the fungus. My approach is straightforward, and that is to dig up Kadota and plant a more disease-resistant variety in its place

On to Brown Turkey . . . Scale insects get up into plants and move around with the help of ants. Stopping the ants goes a long way to putting the brakes on scale. Stopping the ants is easy: Masking tape wrapped around the trunk and coated with a continuous ring of sticky Tanglefoot Tangle-Trap Insect Trap Coating. I also, of course, have to make sure there are no leafy, stemmy, or other bridges around which ants can detour. Next year

One other possibility for reining in scale insects is to spray “summer oil” in spring after the plants have leafed out and greenhouse beds are clear of lettuce, kale, and other vegetables. Summer oil is highly refined so as not to damage plants while it’s smothering the scale insects.

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Another problem I notice in the greenhouse is that developing lettuce heads have some hole-y leaves and a few gobs of insect poop. Slugs are the usual, occasional problem in my greenhouse, but they don’t leave green, gobby, poopy calling cards. (No less unpleasant are the silvery trails they do leave, from their dried slime.) With more than usual grasshoppers this year, that was also a possibility. Nix on that. I just haven’t seen enough of them for all that poop, and they chew beginning at the edges of leaves. Attacked lettuce leaves were pocked with holes

The feeding resembles the handiwork of cabbageworms or cabbage loopers. They’ve never before indicated a liking for my lettuce but are known to include lettuce in their diet. Yet another possibility is another caterpillar, armyworm. This one feeds at night and, because I haven’t seen any caterpillars, is now the most likely culprit

The natural insecticide, Bt (sold under such trade names as Dipel and Thuricide), that I mentioned last week is very effective against the cabbageworms and loopers, as well as young armyworms. Larger armyworms are finished or just about finished feeding anyway.

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These few problems notwithstanding, things are still rose-y, or at least carnation-y, in the greenhouse. The big, fat, fragrant ‘Enfant de Nice’ carnations that I grew this summer . . . well, I couldn’t just leave them out to die from cold. So I dug up some plants to grow in the greenhouse. They add a nice spot of red, white, or pink color, and the fragrance is, as billed, “intoxicating spicy-sweet clove.”

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Deferred Gratification

UPCOMING WORKSHOPS WITH LEE:

Hawthorne Valley Farm, Ghent, NY, 9/9, http://hawthornevalleyfarm.org/event/grow-fruit-naturally-workshop, Grow Fruit Naturally

Stone Barns, Pocantico Hills, NY, 9/22,  http://www.stonebarnscenter.org/products/backyard-fruit-for-small-gardens.html, Fruits for Small Gardens

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One of the things I like least about gardening is its deferred gratification. I planted a Beurée d’Amanlis pear tree a couple of years ago and don’t expect to sink my teeth into one of its fruits until next year. I planted Indian Summer rudbeckia seeds a couple of weeks ago so that I can enjoy swaths of orange-tinged, yellow blossoms this time next year. Yesterday I transplanted endive seedlings, from seeds sown back in early July, into a garden bed to provide succulent, green leaves for salads, soups, and stews beginning this October.

My mini forest, 15 years old: sugar maple, river birch, buartnut

Not that deferred gratification is all that bad. After all, except for when I began my first garden many decades ago (Madison, Wisconsin on August 1st, and I did reap some beans and tomatoes), all the while that I’m planning for the future I am reaping other rewards of past efforts. This week for instance, I’ve harvested onions, seeds of which I sprinkled into furrows in a seed flat in a cool greenhouse back in February. I’m also enjoying tomatoes of all stripes, the result of seeds planted in early April. And I see a reasonable crop of Magness, the best-tasting of all my pears, getting ready with their final stages of ripening for harvest in a few weeks.

Now that I think of it, though, I do enjoy sowing seeds, planting trees, and other gardening activities that are ostensibly for some future reward. Not to mention the pleasure of watching and coaxing along plants as they develop, everything from a radish seedling, sown last week, to a maple seedling, planted 15 years ago and now about 20 feet high.

I’m reminded of a name I saw on a sign hanging over the entrance to a primitive cabin in the woods of Maine: Quitchyerbitchin. It was not a native American name.

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There’s a flurry of deferred gratification in process: planting vegetables for the autumn garden. It’s like a whole new garden, one that begins around mid-September and continues, even here in hardiness Zone 5, into December. 

In between each of the above-mentioned endive seedlings went lettuce plants. Like the endive, the lettuce was sown in a seed flat about a month ago so, like the endive, required no garden space until it became available. That space was donated by my first planting of Golden Bantam sweet corn, sown out in the garden the first week of May and now either eaten or steamed, sliced from cobs, cooled, and packed away in the freezer. The lettuce will be harvested and out of the way by the time the heads of endive  start to spread and fill the bed solid with greenery.

How about another bed, this one just cleared of onions? Into that bed I just planted a row of turnips and a row of Black Spanish winter radishes. You might snicker at my heaping praise upon the lowly turnip, but if you’ve ever had them sown in late summer, grown quickly, and picked during the cool days of autumn, you’re in for a real treat, roasted, stewed, or sliced raw. Hakurei is one of the best for flavor; I also like the old Purple Top White Globe.

Conditions that bring out the best in turnips also do so for winter radishes, the pumped up counterparts of small spring radishes that offer the same spicy flavor but also can be stored through winter. You have to be careful not to plant winter radishes too early or they grow frighteningly large. One summer I did just that with a long, white variety of daikon radish. Very long, it turns out, given enough time. The radishes grew to look like baseball bats, their upper portions rising up out of the soil as if there was not enough room underground to house them. The experience sort of killed my taste for winter radishes for a while.

Just this morning, another batch of seeds -- Chinese cabbage and cilantro -- went into seed flats. Like winter radishes, Chinese cabbage should not be sown too early in summer, in this case because long days and hot weather cause the plants to make flower stalks instead of fleshy leaves. Tatsoi and Fun Jen, the two varieties I planted, each need about 45 days from seed to maturity, but no reason to rush harvest during the cool, short days of autumn. The plants just sit there waiting to be eaten.

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Besides suitable soil fertility, the main requirement of all these autumn vegetables is water. Fast, succulent growth brings out the best in them. With drip irrigation, I don’t have to worry about watering established plants. But until their roots can forage out into wetting front a few inches below the surface, new transplants and seeds need regular watering from a watering can or hose.

You or I might be tempted to also quench our own thirst with water from that hose. In general, don’t! Consumer Reports magazine recently reported that some hoses can leach lead  (used to stabilize polyvinyl chloride in hoses) into the water at 10 to 100 times the level allowable by the EPA for drinking water. The workaround is, if you’re buying a new hose, to buy one specifically labelled safe for drinking water, to let the water run before taking a drink, or -- best idea -- walk to your kitchen to slake your thirst.