[act, onions]
At last week’s Northeast Permaculture Convergence, I gave a lecture and had the opportunity to attend a lecture, the latter by the diva of dirt, or, at least, of compost tea, specifically aerated compost tea (ACT), Dr. Elaine Ingham. You’ve never heard of ACT!? It’s been the hot, new thing for the past few years, an alleged cure for poor soil and plant diseases. I’ve been skeptical and thought that hearing and speaking to Dr. Ingham in person could entice me into the fold.
Dr. Ingham showed myriad images of fungi, nematodes, and other creatures that you might find in compost piles and teas. We saw many “bad guys” that lurk in poorly aerated composts and teas. The “bad guys” are bad, she asserted, because they release toxins into the soil and puff away as gas valuable nitrogen, sulfur, and phosphorus as, respectively, ammonia (not true, the release would be as nitrogen oxides), hydrogen sulfide, and phosphene (except that most phosphorus from phosphene is re-incorporated into the soil before it even gets away).
Dr. Ingham suggested monitoring our compost pile and tea happenings by purchasing a microscope and, with the help of her workshops, identifying resident microorganisms. Hmmm; interesting, but is it really necessary for a green thumb?
While the panoply of microorganisms discussed was impressive, I contended and contend that even a well-aerated compost pile or tea is bound to have some poorly aerated pockets. It’s not a “bad guys” vs. “good guys” situation, but a question of generally favoring an excess of “good guys.” Also, once compost is spread on the ground, the large surface area presented is going to tip the balance even more in favor of aerobic conditions.
(The photo shows me brewing up some compost tea, which I once tried on a few different plants. Response of plants was nothing, nada, zip, rien.)
More fundamentally, I still question the basic assumptions underlying the use of compost tea. Even if you have beneficial organisms in hand (figuratively) and sprinkle them on the ground, they are bound to expire unless the environment is suitable, in which case they will generally be present anyway. Bulky organic materials, such as compost, manure, leaves, and straw, are what nurture these microorganisms.
Spraying ACT on plant leaves should have little or no effect on plant diseases; again, conditions there are not conducive to their survival. In the evolutionary scheme of things, why would a microorganism that thrives in the dark, moist, nutrient-rich innards of a compost pile survive on the sunny, dry, nutrient-poor surface of a plant leaf, let alone provide any benefits. Independent university studies do not generally support the claims made for compost tea. Good gardening comes form using a pitchfork, not an elixir.
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Onion leaves have yellowed and, on most of the plants, flopped down. That’s a good thing. Onions so elegantly demonstrate their life cycle, waxing and waning in response to the progress of the seasons.
At the base of the leaves, the bulbs have swollen into 4 inch diameter, glossy, white orbs. These orbs trace their beginnings back to early February, when I sowed seeds in flats of potting soil. The three varieties, New York Early, Varsity, and Prince, are so-called “long day” varieties, suitable for northern regions because they start to bulb up in response to our long days of early summer. (In the South, early summer days are not as long as ours, so gardeners down there grow “short day” varieties.)
I sowed seeds back in February in order to give my little seedlings time to make as many green leaves as possible before they shifted gears and started putting their stockpiled energy into bulbs. Each leaf corresponds to a ring in the bulb, and the more and bigger the leaf, the more and thicker the rings. The transplants went into the ground back in early May, four rows of them, with plants 6 inches apart, down one 20-foot-long by 3-foot-wide planting bed. A quick calculation brings that to 160 onions, in theory at least; not every one survived and a few don’t form bulbs worth keeping.
After a few days of curing in the sun to further dry down the leaves, these onions will be ready for storage. Braiding them into string is an attractive and functional way to keep the bulbs in good condition for many months.
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To really take the onions full cycle, I would save some bulbs until next spring and then plant them out. Leaves would sprout, as they often do during the final weeks of storage, followed by flower-capped seedstalks. Onions are biennials, growing leaves their first season, going dormant, then flowering, setting seed and dying in their second season. Bulbs left in the ground also do this as long as they survive winter outdoors.
In years past, I grew many onions from sets, those dime-sized bulbs available in garden centers in spring. Growing from sets in easy but does restrict you to only the couple of varieties available as sets, and these varieties, while good for storage, yield sharp- rather than sweet-flavored onions.
Sets sometimes send up seedstalks their first season. Gardeners cut down seedstalks to force the plants to make fat bulbs instead. It’s futile; once onions are in that flowering mode, there’s no turning back.
Sets are made by sowing seeds close together in spring. Starved for nutrients and water, the small bulbs that form never grow big enough to sock away enough energy to shift into flowering mode. They go dormant that summer and, if planted out with elbow room the following spring, grow only leaves their second season so that they can continue storing energy for eventual bulbing, just like first year onions from seed.
The problem with onion sets is that if they grow too big their first season, they go to seed their second season. I saw a friend’s onion planting a few weeks ago, a planting grown from sets, and about half the plants were going to seed. Useless, unless you want to collect onions seeds, or want the plants only for their pretty, white starbursts of flowers.
[barnyard grass. purslane, dodder]
Hot weather and rampant plant growth prompt me to add a word to the traditional English round, “Sumer is icumen in, Lhude sing cuccu!” My new version is “Sumer weeds is icumen in, Lhude sing cuccu!” (“Summer weeds have arrived, Loudly sing, Cuckoo!”)
Almost overnight, big clumps of barnyard grass (Echinochloa crus-galli) have appeared in joints of the flagstone path leading up to my front door. It seems that just a week ago, a combination of hand pulling, weed whacking, and vinegar sprays had those joints free of everything except for a bit of moss. Today I had to cut clumps out with a bread knife that was useless on bread but has proved very useful for in the garden.
Besides being unsightly, those clumps of barnyard grass are unwelcome because they’re spreading. The stems prostrate stems root wherever they touch bare ground. And the emerging seed heads are prolific seed producers – reportedly over 300,000 seeds per square yard.
You might think I should relax because barnyard grass is an annual that flops down dead with the first autumn frost. But all those seeds are going to sit in the soil, some germinating next spring, some the following spring, and on and on. Another of the plant’s common names says it all: panic-grass.
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Purslane is another summer weed that’s picked up steam in the past few weeks. The problem with purslane is that you can’t just pull it out and toss it on the ground. The succulent leaves and stems are very resistant to drought, staying plumped up with water even when detached from the roots. Stems and leaves left on the ground take root and become whole, new plants.
A recent meal at a fancy restaurant in New York City solved the purslane problem. I’d always known purslane to be edible but the taste and texture never appealed to me. I thought I’d give purslane another try in the form of the beet, goat cheese, and purslane salad listed on the menu.
The salad was delicious, so for the next dinner at home we weeded and harvested at the same time, on the same plant: purslane. As a matter of fact, the garden seemed to be lacking in sufficient purslane to meet our new found needs. I’m not yet ready to start sowing purslane seed, which you can actually purchase. We’ll just harvest more conservatively.
For all I knew, the purslane in that restaurant salad might have been harvested from cracks in sunny pavement behind the restaurant.
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For gustatory use, purslane shouldn’t be confused with another, similarly prostrate plant , spotted spurge, about which I wrote a year ago. Stems and leaves of spotted spurge are not succulent. Like other members of the spurge family, spotted spurge exudes a toxic, milky sap when injured.
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Yellow threads weaving up, down, and all around clumps of blackberry, dock, and other wild plants along a road recently caught my eye. These threads are the stems of a most interesting summer weed: dodder (Cuscuta spp.)
The reason dodder is yellow and, incidentally, leafless is because it has no chlorophyll. How does it make food, then? It doesn’t! Dodder is a parasitic plant.
Dodder seeds germinate and the plant’s roots enter the soil only long enough to support a few inches of stem growth. Once young dodder grows a few inches tall and comes in contact with a potential plant victim, it inserts a modified root right into the plant. The grounded dodder root dies and the remaining dodder plant spends summer sucking nutrients and carbohydrates from its host plant, offering nothing in return.
Dodder is a very effective weed. It makes many seeds each season, the seeds do not germinate all at once, some waiting years before germinating, and it has a wide range of plant hosts. Like barnyard grass, purslane, and spotted spurge, the first frost of autumn kills the plant. Not the seeds, though.
[squash and melon vines, same on compost, cucumber tp]
Growing winter squashes and melons has always been an iffy proposition for me. I try to keep my vegetable garden intensively planted and neat, so the question is where to direct these plants’ long, wandering vines.
In the past, I’ve grown squashes inside the garden along the fence, up which the vines could climb. That’s if they wanted to. Some stems would invariable make a break away from the fence and scoot into the garden proper. Other stems would start the climb and then poke through the fence to start running along the ground outside the fence. I would grab some of the delinquent stems and tie them up to the fence, along with well-behaved stems that just needed help in their upward climb. Other delinquent stems just got lopped back.
Nature always wins, and the squashes usually got the better of me, overrunning their corner inside and outside of the garden.
Melon vines are not as wild as squash vines, but still need some restraint in my garden. Some years I’d grow them on inclined trellises. Other years, they rose — with some help from me — as spiraling towers of greenery in tomato cages. Each hanging melon had its own mesh bag, attached to the trellis or cage, to prevent premature separation from the vine, and dropping. The reality wasn’t so neat; in real life, melon vines also always got the better of me.
The necessary growth restrictions of the squash and melon vines severely limited their output, and even with low yields, they required much attention.
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The outlook on squashes and melons changed this year with a suggestion from my wife, Deb. First, let’s backtrack to the rear of my property. Along the west border are compost bins, a lot of them, each about four feet square and of varying heights. They are straight sided boxes built up of interlocking real or composite wood. Most of the piles were built last year and stirred up this spring with my pitchfork to ripen until late summer. Then I’ll dig into them and spread the “black gold” over the vegetable beds and beneath fruit trees.
Deb suggested planting melons and squashes right into the compost bins. Perfect! Just like a mini-garden with the roots of each squash or melon plant in moist, very rich soil — compost, actually. Elevated above the ground, the young vines would be safe from rabbits and, over time, could ramble to their hearts’ content over the tops of the bins, even down to the ground and beyond.
At the end of May, melon and squash plants started in flats were ready to be planted out, and in they went into small holes I cut in the cardboard that covers each pile to keep moisture in and weeds out. I even put some tall tomato cages up against the back of the bins in case the vines felt like playing up and down them also.
Growth in these “compost gardens” has been, as would be expected, phenomenal. Besides abundant nutrients and moisture, residual heat in the bins was also enjoyed by these heat-loving plants.
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This year, of course, I’m making compost to spread next year. First year piles get quite hot: A few weeks ago, temperature within one completed piles registered 155°F. at an 18 inch depth. It has since cooled down to a balmier 130°F.
With inevitable invasions of yellow-striped cucumber beetles and bacterial wilt, cucumbers will soon peter out. They do so every year, so I always start some new plants in early July. This week I had second-crop cucumber transplants as more compost garden candidates, and I’m wondering if the new piles are still too hot for planting. I’ll find out soon enough because I did transplant a few of the seedlings into two of the piles. The plants’ roots will perhaps find temperatures to their liking in the surface layers of the pile, dipping lower as temperatures cool over the next few weeks. Or the plants might just get cooked.
I transplanted a few of the cucumber seedlings out into the vegetable garden, along the fence which I’ll coax the vines to climb.
