MYSTERY OF THE UNDEAD ROSE

 Death shows Life

   It was with red rose in hand — a long-stemmed red rose — that Deb returned from a recent bridal shower. The rose was a party favor, the flower a welcome sight in the dead of winter. It found a home in a vase of water on the kitchen table.
    After a week, the rose was still sitting on the kitchen table, its bloom looking as perky as the day it had arrived. After two weeks, still no change.
    Okay, I’m sure that the vase was clean, the water fresh and initially warm (for quicker absorption into the stem), and that the base of the stem was freshly cut at a 45 degree angle just before immersion. All that, and the cool room, would make the blossom last longer. But that long?

Commercial rose, after 2 weeks

Commercial rose, after 2 weeks

    No special potions were added to the water. Like sugar, to feed the leafless stem and flower. Or an acidifier to make the water’s acidity more near that of the cell sap, stabilizing the flower’s color. Or an inhibitor to prevent microbes from running amuck. Such potions can be purchased or made at home by mixing: 1 teaspoon of sugar, 1 teaspoon of plain household bleach, 2 teaspoons of lemon or lime juice and a quart of lukewarm water; or mixing 2 parts water to 1 part tonic water (or non-diet lemon lime soda).
    The problem was that the blossom was eerily too alive after a couple weeks. Without roots, sunshine, or leaves, the flower should have started dropping petals and looking generally forlorn. It didn’t, at least not quickly enough to exude that there was a life force within.
    Contrast this behavior with that of the carnations (Dianthus caryophyllus) that blossom sporadically in my greenhouse through winter.  I cut the fragrant, pink blossoms, put them in a vase of water, and within a week they’re spent.
    I’ve gained appreciation for the transience of cut blossoms. Their timely decline and death declare their aliveness.

Blame it on (a) Gas

    Comparing roses and carnations may be like comparing apples and oranges.
    Ethylene, a simple gas that’s also a potent plant hormone, comes into play here for its role in plant senescence, including that of cut flowers. Combustion, whether from a cigarette, an automobile engine, or a candle, produces some ethylene, as do plants themselves, especially when they are wounded or in their final throes of aging.
 Carnation, fragrant and pretty   Carnations are among flowers, along with baby’s-breath, lilies, snapdragons, and most orchids, whose ethylene production ramps up as senescence begins. These flowers also are very sensitive to the effects of ethylene, which speeds aging, which generates more ethylene, which further speeds aging, which . . .
    Roses, in contrast, are less sensitive to ethylene. (And ethylene plays no role in the decline of daisies, daffodils, and irises.) Also, as a commercial product, the long-stemmed, red rose that sat on my kitchen table could have been pre-treated with silver thiosulfate or aminoethoxyvinylglycine, both ethylene inhibitors.
    No matter. I don’t require a whole lot of carnation blossoms, and new ones appear at a rate sufficient to replace spent ones, or, if slower, to increase appreciation for each new one.

In the Greenhouse, Out with the Old, In with the New

    All winter, the greenhouse beds have been vibrant green with lettuce, arugula, celery, parsley, mâche, chard, kale, and claytonia. Just lately, the greenery has lost some of its vibrance.Lettuce going to seed
    Planted in early fall, these greens grew to size — as hoped — to provide good eating through winter. Over the past few weeks, as days grew short and dim, and temperatures cooled, the greenery — as expected — mostly just sat still. In anticipation, I had grown them to size before the onset of winter. A bigger greenhouse would allow for a little something to be harvested from a lot of little, slow growing plants, enough for the daily fare. But the greenhouse is what it is.
    And some of the lettuce plants, though not very big or old, are going to seed. It seems that lettuce transplants, rather than plants from seeds planted right in the ground, are more prone to this bolting.
    Time for some fresh young growth: I pulled out some old and bolting plants, and sowed fresh lettuce, spinach, and arugula seeds. Growth will be slow for now; older plants should supply sufficient harvest until young’uns are ready for picking.

WINTER ‘SHROOMS, SUMMER DREAMS, & A WINNER

Mushrooms Think It’s Autumn Again

   The 15 oak logs sitting in the shade of my giant Norway spruce tree more than earned their keep last year. Seven of them got inoculated with plugs of shiitake mushroom spawn in the spring of 2013; eight of the were inoculated in the spring of 2014. With little further effort on my part, reasonably good flushes of mushrooms appeared through spring and summer, then heavy flushes through fall until the mild weather turned frosty.Indoor shiitakes
    My friends Bill and Lisa, also shiitake growers, told me a few days ago how they’re still harvesting good crops, cold weather notwithstanding. They brought one of their logs indoors, where it stands in the sink of their laundry room. Great idea!
    I don’t have a laundry room, but I do have a cool, dark, moist basement, i.e. mushroom heaven. So a few days ago I carried one of my logs down the narrow basement stairway and propped it against the wall in a dark corner near the sump pit. That nearby pit could catch excess water in case the log needed to be watered.
    No watering was needed: A few days after taking up residence in the basement, fat, juicy shiitake mushrooms exploded from the plugs up and down the log — so many that we had enough to dry for future use.
    I’ll leave the log down there to see if it flushes again. If nothing happens within a few weeks, I’ll carry it back under the spruce and replace it with another log from outside. The few weeks in the cool basement might be enough time for more mycelial growth in the log in preparation for another flush. And then, sitting for some time in cold weather beneath the spruce might be just what a shiitake log needs to shock it into another cycle of production.
    Rotating the logs between the basement and beneath the spruce could keep us in fresh mushrooms all winter long.

Winter Green

    Most years, by this time, piles of snow would make it difficult for me to get to those outdoor shiitake logs. Recent weather, and predictions for the coming months, makes me wonder if I should even keep using the word “winter.”
    I’d sacrifice fresh shiitakes for a real winter with plenty of snow. (We have enough quart jars of dried shiitakes to last well into warm weather.) It’s nice to have that white stuff to ski on. Snow even fertilizes the ground (“poor man’s manure”) as well as insulates it against cold.

Bamboo after a mild winter

    On the other hand, a mild winter has its appeal. Most winters, leaves and canes my yellow groove bamboo (Phyllostachys aureosulcata) are damaged — or, like last winter — killed back to the ground. The roots survive to re-sprout but the leaves turn brown and the new canes in spring are spindly. Some winters, like this winter probably, make for attractive (and useful) tall, thick canes dressed all winter long in green leaves.
    Chester blackberry is another borderline hardy plant. It’s the hardiest of the thornless blackberries yet comes through most winter with many stems dried and browned — dead, that is. In the spring after our mild winters, stems are still green, foreshadowing a good crop of blackberries in late summer.
    I’ve been waiting for a string of reliably milder winters to plant out my hardy orange plant (Citrus trifoliata). Yes, a citrus whose stems can just about survive to flower and fruit outdoors here, where winter temperatures normally plummet to minus 20°F or below. The fruit, sad to say, is only marginally palatable.
    One more plus for a mild winter is the color green. The green of plants comes from chlorophyll, which is always decomposing, so must be continuously synthesized if the plant is to remain green. Synthesis requires warmth and sunlight, both at a premium during winters here. So most winters turn lawns muddy green or brown; even the green of evergreens, such as arborvitae, turn chalky green.
    But not this winter — so far. Grass is still vibrant green, as are the arborvitaes and other evergreens.

My Favorites

    My friend Sara asked me if I had yet ordered my seeds, and if I was getting anything especially interesting. Yes and hmmm.Some of my favorite tomatoes
    As far as hmmm . . . I’ve tried a lot of very interesting plants over the years, too many of which — celtuce, garden huckleberry, vine peach, and white tomatoes, for example — were duds. So mostly, I restrain myself, devoting garden real estate to what I know either tastes or looks good, and grows well here in zone 5 or, more specifically, on my farmden. Some of my favorites include Shirofumi edamame, Blue Lake beans, Blacktail Mountain watermelon, Hakurei turnip, Sweet Italia and Italian Pepperoncini peppers, Golden Bantam sweet corn, Pennsylvania Dutch Butter Flavored and Pink Pearl popcorn, Lemon Gem marigold, and Shirley poppy.
    I’m very finicky about what tomato varieties I plant, so won’t even mention them. Oh yes I will: Sungold, San Marzano, Paul Robeson, Brandywine, Belgian Giant, Amish Paste, Anna Russian, Valencia, Carmello, Cherokee Purple, and Nepal, to name a few.

And the Winner Is (drum roll) . . .

Thanks for all your comments, requested on last week’s post, about your soil care. Looks like you readers (or, at least, those of you who commented) are very savvy gardeners, enriching your soils with lots of organic materials.  I chose one comment randomly fro the lot, the writer of which gets a free copy of my book Grow Fruit Naturally. Congratulations Selena.

For those of you who subscribe — or have attempted to subscribe to my weekly blog, a glitch is preventing you from getting email notifications. I just found out that the glitch has been glitching since back in September. I hope to get it fixed soon. Any suggestions? (The blog is in WordPress and subscriptions are with Feedburner, whatever that means). Stay tuned. If you want to just go to my blog site, new posts come out towards the end of every week.

TO SAVE OR NOT TO SAVE, & A FREE BOOK!

New Seeds Needed?

    “Ring out the old, ring in the new.” But not all the “old,” when it comes to seeds for this year’s garden. I’m flipping through my plastic shoeboxes (I think that’s what the boxes are meant for) of vegetable and flower seeds, assessing what old seeds are worth keeping and what new seeds I need to order.
    Seeds are living, albeit in a dormant state, and, as such, have a limited lifespan. The longevity of any seed depends, first of all on the kind of seed, its genetics. Most seed packets come dated; if not, I write the date received on the packet.
    Few seeds have as short a viability as parsnips. (No matter to me; I don’t grow them.) More astounding is the longevity of some seeds, especially the current record-holder for longevity, Silene stenophylla seed, possibly 32,000 years old, found buried in a squirrel burrow in the Siberian tundra. At the other end of the spectrum are seeds that remain viable for even less time than parsnip. The record at that end is probably held by seeds in the family Tillandsioideae, related to pineapple, with a viability of 4-6 weeks. Swamp maple, Acer saccharinum, seeds retain their capacity to germinate for only about a week.
    It’s not worth the risk to sow parsnip, spinach, or salsify seeds after they are more than one year old. Two years of sowings can be expected from packets of carrot, onion, okra, pepper, and sweet corn seed; three years from peas and beans, radishes, celery, and beets; and four or five years from cabbage, broccoli, brussels sprouts, radish, cucumbers, beet, endive, melons, eggplant, tomato, and lettuce.
    Among flower seeds, the shortest-lived are delphiniums, aster, candytuft, and phlox. Packets of alyssum, Shasta daisy, calendula, sweet peas, poppies, and marigold can be re-used for two or three years before their seeds get too old.

Life Extension, for Seeds

    As with humans, genetics and lifestyle determine actual longevity, lifestyle, in the case of seeds, being storage conditions. So although onion seeds remain potentially viable for 2 years, I replace the year old, dog-eared seed packets in shoeboxes in my garage with new packets each year.Bicycle vacuum pump
    Conditions that slow biological and chemical reactions also slow aging of seeds, i.e. low temperature, low humidity, and low oxygen. All winter, my seeds find their low temperature and low humidity storage in my garage. Good for seeds. But come summer, my garage becomes warm and humid. Bad for seeds.
    If my seed boxes could be kept well sealed, I could eke more sowings from a packet of seeds by lowering the humidity with a packet of silica desiccant.
    Reducing oxygen levels has generally not been practical . . . until I came across plans for converting a bicycle pump into a vacuum pump (http://www.instructables.com/id/make-a-manual-vacuum-pump-for-under-$20-by-convert/). Going forward, my plan is to stuff some packets of seed into large-mouthed mason jars, then evacuate them with the reversed bicycle pump plugged into a “FoodSaver Wide-Mouth Jar Sealer.” I’d like to figure out some box I could make, modify, or buy in which I could more conveniently put my seeds, and then evacuate. Any suggestions?
    I’ve already tried this on a number of mason jars of dried tomatoes, dried shiitakes, nuts, and beans. The vacuum is not very strong (0.74 atmospheres), but sucking out air also sucks out moisture. Some testing will determine just how it affects seed longevity.

Test It

    So I don’t really know how viable my seeds are. One option is to order all new seeds each year. That could be very expensive. Another option is to guesstimate my seeds’ viabilities, taking into account their inherent longevity and storage conditions. That’s my approach, seasoned with yet another option: testing the viability of some of my seeds.

Testing seed germination

   I test viability by counting out 10 to 20 seeds from each packet to be tested, and spreading the seeds between two moist rounds of filter paper on a plate. Enclosing the plate in a plastic bag to hold in moisture, and putting the bagged plate somewhere warm, preferably around 75 degrees, provides just about perfect conditions for germination. (Alternatively, place seeds on a damp paper towel, roll it up, bag it, and put it somewhere warm.)
    After one to two weeks, germination occurs — if it is going to. Peeling apart the filter papers (or unrolling the paper towels) lets me count the number of seeds with little white root “tails”.
    Seeds with low or no percentage germination got tossed into the compost pile. If the germination percentage isn’t too low, I’ll use the seeds and adjust the sowing rate accordingly.

A Freebie

A book giveaway, a copy of my book GROW FRUIT NATURALLY. Reply to this post telling us, if you grow vegetables, how you maintain soil fertility year after year, and how it’s working, or not, for you. Let us know what state you are in (as in NY, OH, CA, etc., rather than happiness, wistfulness, etc.). I’ll choose a winner randomly from all replies received by January 22nd.

MULCH, SOMETIMES BETTER LATE THAN EARLY

Cardoon Gets to Stay

    I haven’t yet given up on cardoon — growing it. But eating it? I just about give up. It’s like eating humongous stalks of stringy celery having just a hint of artichoke flavor.
    As an ornamental is how cardoon has made itself garden-worthy. Like most perennial plants, it grew only leaves this past season, its first season here. But what leaves they were! As I said, like “humongous stalks of celery.” Not much good for eating but nice to look at. The edges of the three-foot-high stalks were winged with undulating, pointed blades (each stalk is a leaf), and the whole plant is a very Mediterranean-looking olive-green.Cardoon in late fall
    If all goes well, next year should provide an even better show, when flowers also appear. Cardoon is in the thistle family. It’s as if you injected our common (Canadian) thistle with steroids. In addition to those giant leaves, the flower stalks rise to 6 feet and are then topped by fat, spiky, cerulean balls, each a couple of inches across.
    Cardoon not only looks Mediterranean; it is Mediterranean. As such, is not cold hardy this far north. Temperatures in the 20s do no harm to the top of the plant, but the top will die back when temperatures turn colder. The crown of the plant and the roots, shielded in the ground, tolerate even lower air temperatures. Eventually, though, our winter cold penetrates the ground to do them in.
    But not if I soften that cold affront. Once temperatures turn colder, and stay reliably so, I’m going to lop back the tops of the plants, then pile on a thick layer of mulch, from a couple of large bags of leaves I stockpiled back in November. The reason to hold off until the soil turns colder is because in still-warm soil, the crown would have pushed out new growth beneath the mulch. That new growth would have died from lack of sun, or rotted.
    Cardoon’s fleshy crown is especially prone to rotting, so I’ll lay a flat piece of plastic over the pile of mulch. That should shed rainwater while allowing some breathing room from the side.
    Perhaps next year I’ll get to enjoy the flowers. Perhaps the stalks will be worth eating.

I Put The “Straw” In (On) Strawberry

    Cardoon isn’t the only herbaceous perennial that needs protection from cold. Another is strawberry.
    The crown of a strawberry plant is, in essence, a stem that has been telescoped down. Instead of a few inches from leaf to leaf along the stem, only a fraction of an inch separates a leaf from its next higher or lower neighbor. So instead of elongating a foot or two every year, like most stems, a strawberry crown elongates only a fraction of an inch each year.
    Still, over time, that crown rises higher and higher up out of the ground, each year becoming more exposed to cold. Mulching prevents cold damage to strawberry in the same way as it does for cardoon. As with cardoon, the time to cover the plants is AFTER cold has penetrated the ground. When the soil has frozen about an inch deep is about the right time.
    Strawberry crowns are not particularly prone to rotting, so there’s no need to lay a water shedding cover over the mulch. Or to cut back the leaves; strawberry leaves aren’t fleshy and don’t rise high above the ground.

Doin’ Some Dustin’

    In addition to leafy mulches, already spread beneath other trees and shrubs, one other sign of creeping cold is the gray dust that has settled on parts of the meadow, beneath the pear trees, and around the currant bushes. There’s more to come, and it’s not snow. It’s ash, from the wood stove.
    Spreading wood ashWood ash is both a waste product and a resource, depending on how much you have and how much space you have to spread it. As a resource, it’s high in potassium, an essential nutrient for plants, and contains other essential elements. Wood ash decreases the acidity of soils which, around here, mostly increases naturally over time.
    But too much potassium can be a bad thing. As can too little acidity; slightly acid soil is what’s ideal for most plants.
    Since wood ash varies somewhat in its composition, it’s impossible to put a number on how much to spread. No more than 20 pounds per thousand square feet is reasonable, except on alkaline soils (pH greater than 7) or beneath acid-loving plants such as blueberry, azalea, and rhododendron, which should get none. I disperse it over the whole farmden — on the meadow and the lawn, beneath fruit and nut trees and bushes — to avoid concentrating it anywhere. I also save some to spread on icy walks and to sprinkle around plants if slugs become a problem.

THE CHILL BANK IS FILLED?

But Do I Want Flowers Now?

    The season has been “chill,” literally and figuratively, the former predicted by weather experts based on a this year’s strong El Niño.
    Because of El Niño, the West was pounded with rain; here in the Northeast, except for an occasional night, temperatures have been mild over the past few months, much milder than I remember for any other fall. It is those chilly, but not frigid, temperatures — in the range from 30 to 45 degrees Fahrenheit — that signal to plants that winter is over and it’s safe to begin unfolding flower buds or pushing new shoots from dormant buds. A certain number of hours within this temperature range does the trick, typically about a thousand hours, the exact requirements varying from plant to plant. Temperatures below 30 or above 45 degrees don’t contribute to the needed hours, can even set the clock back and increase the number of hours still needed.

Witchhazel blooming in autumn

Witchhazel blooming in autumn

    Typically, in the Northeast, required chilling hours are not fulfilled in autumn. Some are, but then temperatures typically plummet. The “chilling bank” is finally topped up in late winter or early spring. Growth then only awaits favorable growing conditions, which mostly means sufficiently warm temperatures.
    This fall, however, some or all chilling hours have been fulfilled — not a good thing, for humans. Flowers on fruit trees and bushes will probably unfold earlier than usual, at time when they are then threatened by subsequent frosts that could wipe out next season’s harvest. Ornamentals also will probably flower earlier — no big deal if all we want from them is flowers. My Arnold’s Promise witchhazel usually flowers in March. This year’s October flowering means no flowers this coming spring.
    Buds that grow into shoots will also awaken earlier next year.  Shoots begin growth after the earliest flowers so aren’t as threatened by subsequent cold snaps. Even if they get burned by frost, they usually just push out new stems from undamaged buds that otherwise might have remained dormant for the season.

Native Fruits Fare Better

    One plus for growing native plants is that they are more adapted to the vagaries of our climate than non-natives. Apricots, for instance, present a challenge because they need relatively few hours of chilling to awaken. They are one of the first trees to bloom.
 

Apricots after a good winter & spring

Apricots after a good winter & spring

   Low chilling requirement is no problem in apricots’ native haunts, where winters are cold but springs warm steadily. Around here, though, wild temperature fluctuations in winter and spring fulfill chilling requirements early; blossoms appear so early that they’re almost sure to be nipped out by subsequent drops in temperature. A warm fall gets the flower buds ready for opening even earlier.
    I am more optimistic about my American persimmons, pawpaws, highbush and lowbush blueberries, and grapes for next year. These natives are accustomed to our variable temperatures, so rarely fail. Perhaps they won’t fail even after this wacky fall weather.

Plants Chillin’ Indoors

    Just chillin’, figuratively, are houseplants. As tropical and subtropical plants, they can remain somewhat aloof to the weather, except to grow when the weather is warm, and “chill out” — that is, just sit still — when temperatures cool. “Warm” and “cool,” in this case, span a narrow range, either outdoors in summer or indoors in winter.

Windowsill fruits- avocado, Rhpsalis, lemon

Windowsill fruits- avocado, Rhpsalis, lemon

    Still, sunlight and perhaps other subtle, seasonal changes in houseplants’ sheltered environment have their effects. So right now, houseplants mostly just “chill out.”  I’m drumming my fingers, waiting. All these plants need now is water, when thirsty.
    Once we get over the hump (trough?) of the shortest day and light becomes stronger and longer, houseplants will perk up and begin growing. Then, they might need some fertilizer, commensurate with growth, in addition to water.
    Right now, I’m awaiting blossoms from Odontoglossum pulchellum (that’s an orchid, no common name), blossoms and fruit set from Meyer lemon and Golden Nugget mandarin, and fruits to finish ripening on Meiwa kumquat and Abraco olive.

FLOWERS ALL WINTER

Mine Aren’t Frilly

    And now, with a bow to my feminine side, a little something about African violets, houseplants that have traditionally been thought of as old lady’s flowers. Still, I’ll admit it, I like African violets. They offer so much for what little effort I make in growing them.
    Mainly, what they offer is flowers, and at a time — now and throughout fall and winter — when flowers are at a premium. I have only one variety, but if I was really into African violets, I could be choosing plants with white, pink, blue, or purple flowers, or blue with white picotee, or white blushed pink, or . . . any one of a number of flower colors and color combinations. And then there are varieties with ruffled, scalloped, quilted, or variegated leaves. And plants that range from few-inch wide miniatures to over a foot-wide large.
    My African violets are standard issue blue-flowered, flat-leafed, medium sized plants.
    As I said, I put little effort into growing them.
    If you study up on growing African violets, though, you’d think them very exacting in their requirements. For starters, they’re said to need special potting soil, well-drained but, with the addition of extra peat or sphagnum moss, consistently moist. They’re said to need bright light, preferably a north or west facing window, or fluorescent, but not too bright. Direct sun will allegedly burn their leaves. Avoid getting water on the leaves or it will leave a dark spot. Avoid getting water at the base of the plant (the crown) or it will rot. Avoid overwatering. Avoid underwatering. Oh, and I almost forgot to mention: Avoid cold water.watering African Violet
    Moving on to the air around the plants . . . avoid chilling the plants, moving them away from cold windows at night or stuffing some newspaper between the plants and the window. But also don’t keep the plants too warm.  Also, ramp up the humidity by growing them in the basement or setting them above trays filled with pebbles and water.
    Whew! That’s effort. I don’t do any of that. I use the same potting soil for African violets as for all my other plants (except succulents), from tomato seedlings to fig trees to bonsai Ficus. My plants sit happily in south and west windows, some in a cold room with nothing to stop the flow of cold from the the glass. My watering is whimsical, leaving them sometimes sitting in too much water and other times in bone-dry soil. I pay no special attention to water temperature or to whether or not water gets on the leaves.
    My African violets are growing and flowering just fine.

Leaves into Plants

    Perhaps my African violets grow too well because every a couple of years or so they get so overgrown that they’re spilling up and out of their pots. Then it’s time for one of the coolest things about growing them, and that’s propagating them.
 Rooting African violet leaves   I do so by cuttings, but not by the usual stem cuttings. African violets hardly have a stem; the crown, or whorl of leaves, is a foreshortening stem, too short for a stem cutting. I propagate them with leaf cuttings, typically taken in spring. Nothing complicated here: Just pull off some leaves and poke the leaf stalks (petioles) into a rooting mix of potting soil or equal parts peat and perlite. Water thoroughly, make a plastic tent or use an upturned, clear jar to maintain humidity, and move the whole setup to a bright location (definitely not full sun this time, or plants might cook!).

African violet leaves, rooted

African violet leaves, rooted

    All that’s needed is patience. In a few weeks, from the bases of the leaf stalks appear new shoots, on their way to becoming whole, new plants. Fascinating.

Leaves into Plants, Another Way

    A few years back I sowed dust-like seeds from a begonia plant. The seedlings matured into a few plants that were mounds of green, dripping all summer long with fire-engine red blossoms. I cloned the plants with stem cuttings, which took up a lot of space and were slow to root. So, I’m thinking, why not leaf cuttings for the begonias also, this spring?
    Begonias can be multiplied by cutting the fleshier parts of leaves into triangular sections, each with a major vein, and sticking each triangle upright in a rooting mix. Or, another approach is to cut across the large veins on the undersurface of a begonia leaf, then lay the whole leaf on the rooting mix, pinning it down to maintain contact with the mix. In either case, with moisture, a clear tent, bright light, etc., roots and new plants develop. Again, fascinating.

Any Cell Can Do It

    The reason that I or you can make a whole new plant from part of a plant is because of totipotence. This ten dollar word tells that any cell in a plant, except reproductive (egg and sperm) cells, houses identical genetic information, and that information can give rise to any other part of a plant, even to a whole new plant. It’s up to the skilled gardener to provide the conditions that prompt a plant part to develop into a whole new plant.

IT’S A GAS!

 Last Tomatoes & Peppers

   Late fall, and my thoughts turn naturally to . . . ethylene! You remember ethylene from high school chemistry. A simple hydrocarbon with 2 carbon atoms double-bonded together with 2 hydrogen atoms attached to each of the carbon’s remaining two free bonds. C2H4. It’s a gas, literally, and an important industrial chemical transmuted into such products as polyethylene trash bags, PVC plumbing pipes, and polystyrene packing “peanuts.”
    Oh, I forgot, this is supposed to be about plants. Ethylene is synthesized in plants and is a plant hormone with — as is characteristic of hormones — dramatic effects in small amounts.
    I think of ethylene as I sliced the last of the season’s fresh garden tomatoes for a sandwich a couple of weeks ago. Note that I wrote “fresh,” not “fresh-picked.” The tomatoes had been picked almost two months prior from vines I was cutting down and gathering up for composting. They sat on a tray in the kitchen, very gradually, over the weeks, morphing in color from light green to pale pink to deep red.

Tomatoes & peppers in November

Tomatoes & peppers in November

    Ethylene is responsible for this transformation from pale and insipid to red and flavorful (flavorful as compared with the pale green or pink stages, not as compared to vine-ripened summer tomatoes). It’s produced naturally in ripening fruits, and its very presence — even at concentrations as low as 0.001 percent — stimulates further ripening.
    The tomatoes shared the kitchen tray with peppers, peppers that also were green when laid on the tray. All ripening fruits produce ethylene, peppers included. So let a green pepper sit long enough and — as long as it is sufficiently mature and does not dry out too much, or rot — it will ripen red, or yellow or purple, whatever is its ripe color. Which mine did.

Yes, One Rotten Apple Does . . .

    The ethylene given off by a ripe apple or banana can be put to use in speeding up ripening of tomatoes. Just put either of these fruits into the bag with tomatoes. Apples and bananas are climacteric fruits which, instead of emanating a steady stream of ethylene, ramp up production dramatically as full ripeness nears.
    Among other effects, ethylene production itself stimulates further ethylene production. So if ripening fruits are left too long in a bag, ethylene stimulates ripening which stimulates more ethylene which stimulates more ripening, ad infinitum, until what is left is a bag of mushy, overripe fruit. Hence, one rotten apple really can spoil the whole barrel.

It’s a Gas for Fruiting Also

    Ripening isn’t the only prod to ethylene production in a plant. Stress also can do it, whether from the nibble of an insect, a disease spore wending its way through a plant’s cuticle, wind or snow bending a branch, or pruning shears trimming a wayward branch.
    Exogeneous ethylene leaves its mark on more than just promoting ripening. A century and a half ago, pineapple growers in the Azores saw that plants nearer outdoor fires flowered soonest. Plants that flower sooner, fruit sooner.
    If you’ve rooted a pineapple crown — relatively easy, just twist it off, plant in pot of well-drained potting soil, and water only when soil dries out — you can speed flowering and fruiting by setting an apple in the crown for a few days, then covering the plant with a bag.

And for Not Staking (Too Much)

    Soon, I’ll be going outside, pruning shears in hand, to put ethylene to use again. Ethylene also slows growth, in so doing coaxing flowering.
 

Flowers on bent pear branch

Flowers on bent pear branch

   Pear trees are famous for being slow to settle down to flowering and bearing fruit. No, I’m not planning to hang apples in the pear trees and enclose them in plastic bags! I am planning, after I finish working on the trees with my shears, to bend some well-placed branches to a near horizontal position, using weights, string, and pieces of wire to hold bent branches in place. The stress of bending — compression on one side of a stem, expansion on the opposite side — steps up ethylene production (30-300%), slowing growth, inducing flower bud formation, and shortening the time till I bite into my first pears from young trees.
Young tree, staked    I’m not yet finished with you ethylene. I planted a few new apple trees this year. They need staking, but not too much. Stakes should allow some movement of the developing trunks, and free movement of the top third of the plants. Movement causes the same stresses as branch bending, likewise inducing ethylene production. Ethylene, as you now know, slows growth but also, as you might not know, increases the thickness of the moving part; i.e. makes for a sturdier trunk. That’s what I want for my young trees.

SWEET ANNIE AND SWEET GRAPES

Annie Helps the World

    Sweet Annie (Artemisia annua): such an unassuming name. Likewise for the plant itself, with its ferny, but not distinctive, foliage, and flowers not worth a second look. You’d hardly peg this plant as a player in global health and global warming.
    But look within the leaves and you find artemisin, a biologically active compound that has contributed to Sweet Annie’s figuring into Chinese herbal medicine for the past 2,000 years. Artemisin was isolated from the plant in the 1970s by Chinese scientist Tu Youyou, for which she  shared a Nobel Prize. Sweet Annie’s uses in Chinese medicine — qinghao in Chinese — run from treating asthma to skin diseases to stomach pain to rheumatism to  . . . but not all such claims have been experimentally verified (and Sweet Annie could have bad side effects).Sweet Annie
    The most widespread and thoroughly documented use of Sweet Annie is, in combination with other drugs, in the treatment of malaria, a disease responsible for over a half a million deaths per year. One roadblock to the more widespread use of artemisin is its cost.
    Which brings us to global warming, or, more specifically, the increasing concentration of carbon dioxide in our atmosphere, which is one cause for global warming. Carbon dioxide, for all its bad press, is one ingredient in the recipe for photosynthesis. The carbon in carbon dioxide is what becomes the organic carbon in a plant’s cellulose, starches, sugars, fats, proteins, and other essential building blocks that store energy and build a plant’s physical structure. More carbon dioxide in the atmosphere could translate into greater growth, although increased temperatures from global warming could have the opposite effect.
    In the case of Sweet Annie, research by the USDA indicates that a more carbon dioxide rich future would lead to more growth, which translates to greater yields of Sweet Annie and more artemisin for treating malaria.

Annie, for Sweet Aroma

    My two Sweet Annie plants aren’t destined for drug production. They’re for olfactory pleasure. Tied into bundles and hung in the mudroom alongside the front door, the bundle will effuse its camphor-sweet aroma each time a breeze or a person brushes past.

Annie’s a Weed?!

    Sweet Annie is a self-seeding annual that, like some other members of the wormwood family, can become weedy. Which makes it perhaps unwise that I planted it where I did.
 Sweet Annie iin terrace garden   Garden areas closest to my front, back, and side doors are the ones that get most care and that I look at the most; these considerations guide my plantings, both for aesthetics and for pragmatism. Things get wilder as you move further from the house, the most dramatic example of which is the meadow that begins where the lawn ends.
    So it was perhaps foolish to plant Sweet Annie, which is not much to look at and could become weedy, in the bed next to my terrace. Having the fragrant leaves close by was one rationale. But for some reason, that one bed is cared for the least, perhaps because or perhaps consequently it has become a dumping ground for miscellaneous plants for which there are no obvious homes.
    That bed is also home to chamomile. Again, one rationale was to have it nearby so I could conveniently pluck flower heads for tea — which I do. But really, no other home presented itself. I planted chamomile there many years ago and got scared of its seeding all over the place. With diligence, I was able to get rid of it — until this year, when I replanted it. I’ve been warned (by myself).
    I even planted mint in that bed, again, to have it handy for tea, but knowing how it could, and once did, knit the soil, just beneath the surface, with its lacework of stolons from which sprouts new stems. I did have the foresight, this time, to contain the roots by planting the mint into a chimney flue sunk into the ground. Constant attention will be needed to prevent the stems from flopping down over the sides of the flue to root — which they do very easily — where they touch soil.
    From today’s perspective, a handy little garden overflowing with sweet aromas is appealing. I’ll see how I feel next year at this time.

Sweet Ice Grapes

    Hanging from vines on the arbor over the terrace are remnants of the season’s grapes and the white paper bags that protected some of the bunches. I found a few bags still with unharvested clusters, frozen but still intact. “Ice grapes,” the precursor to “ice wine,” except that these are eating grapes. They were smooth, sweet, and flavorful.

Grapes, frozen but delicious

Grapes, frozen but delicious

CLEAN UP, THEN SHAVE

 Out with the Old (Plants)

   Ostensibly, I’m clearing away old plant debris from the vegetable and flower gardens to spare next year’s garden a full onslaught of overwintering disease and insect pests, and so that, come spring, the soil is ready and waiting for seeds and transplants. I’ll admit it, though: I like the garden looking neat going into late autumn. As Charles Dudley Warner wrote in his book My Summer in the Garden (1889), “the closing scenes need not be funereal.”
    As of this writing, frost has not yet struck; as of your reading, it probably will have. Following that event, I will remove all dead plants. I’ll grasp the tops of smaller plants, such as marigolds and basil, give them a twist to sever the smaller roots, then lift and toss the plant into a waiting garden cart. If I tried to do that with old pepper, tomato, or okra plants, they would laugh at me. I lop off the bulk of their tops, then cut around the plant with a Hori-hori knife so that I can lift the remaining stem and main roots out of the ground.Beans cleared away; only poles still standing, for now
    In either case, my goal is to remove everything but the smaller roots. Left in place, they’ll rot to add organic matter to the soil, leaving behind channels to let air, water, and creatures move through the ground.
    Even now, before frost, cleanup is well under way. Tomatoes are spent; I cleaned them up yesterday. Beans are spent; I’ll clear them away today. Leaving bean roots in the soil is like sprinkling organic fertilizer from the free nitrogen they gathered from the air.
    Along with garden plants, weeds also get cleared away, again removing only top portions and the main roots. Small roots don’t have the energy to re-sprout.

In With the New (Compost)

    More than just looking neat, the cleaned up garden is — to my eye — ornamental. Think of the calm beauty of Zen gardens, some of them little more than boulders and raked gravel. Mine is wood chips (in paths) and raked soil.
 

Beds in fall: veggies, oat cover crops, compost

Beds in fall: veggies, oat cover crops, compost

   Well, not really raked soil. Bare soil looks ugly to me because I know it’s too exposed to rain and wind. So as soon as I’ve cleared a bed, I immediately put a blanket on it. Before the end of September, that blanket was oat seed topped with an inch of compost. Those beds are now lush strips of green. Post-September beds get blanketed with just an inch of compost. It’s roughness helps protect the surface, and next spring I can sow seeds or plug transplants right into it. That much compost is all the nourishment plants will need for the whole growing season next year.
    And then there are the beds still green with carrots, turnips, endive, lettuce, kale, and other cold-hardy plants. I’ll dig the root crops, for storage, at my leisure. The others, we will eat, also at our leisure.

Nothing Wasted

    All that stuff that I am clearing out of the garden is going right into the compost pile. Yes, everything! I’m occasionally asked if I put leaves and stems that are infected or infested with blight, aphids, or other pests into my compost pile. Yes! Everything goes into the pile.
    I contend that if you looked closely enough (perhaps needing a microscope) at almost any leaf, stem, fruit, or root, you’d probably find some evidence of a “bad guy” on it. No matter. The combination of time and temperature within any compost pile does them in.compost piles
    This time of year, piles build rapidly. By paying attention to water and air within the pile as well as the balance of high nitrogen materials (manures and lush greenery such as vegetable plants and young weeds) and high carbon materials (old, browning plants, wood chips, autumn leaves), I’m able to get my compost piles up to 160° F.
    Soon, cooler temperatures combined with less stuff to feed the pile makes for cooler composting. I let these piles “cook” longer, the longer time making up for lower temperatures.

Lookin’ Good and Ready for Spring

    Getting everything ready for winter is a leisurely process, inching along over the next few weeks. By then, tender vegetable plants and weeds will have been tucked into compost piles and beds will be blanketed in either compost, compost and growing oats, or late fall vegetables. Mr. Warner, mentioned in my opening paragraph, went on to say, “A garden should be got ready for winter as well as for summer . . . I like a man who shaves (next to one who doesn’t shave) to satisfy his own conscience, and not for display, and who dresses as neatly at home as he does anywhere. Such a man will be likely to put is garden in complete order before the snow comes, so that its last days shall not present a scene of melancholy ruin and decay.”
    I’m going to shave now.

I Find Common Ground, and More, in Maine

 My Favorite Country Faire

   Two dogs, one cat, six ducks, and one chicken are trusted to the care of friends; sourdough starter is re-fed and chilled; plants are on their own. It’s hard to leave the farmden. But this trip — to Maine — is well worth it.
    Walking through the entrance gate to the Common Ground Fair in Unity, Maine, my senses are overloaded with color and fragrance. Along either side of the entrance path are boxes piled high with bright orange carrots, spilling over with the blue green leaves of kale, or packed full with yellow or red beets. Also flowers, herbs, and cheeses. Pervasive is the resiny fragrance of sweet Annie (Artemesia annua), which for some reason seems to be perennially the signature herb of the fair. Buckets are filled with stems for sale; knapsacks sprout bunches of purchased sweet Annie from their zippered pockets; and girls and women sport woven sweet Annie headdresses. From the shade of tents on either side of the walkway, Maine’s myriad organic farmers are hawking their wares.Crafts at Common Ground Fair
    Sweet Annie isn’t the only fragrant herb at the fair. In the tent devoted to some of Maine’s political groups, buds of marijuana — medical marijuana — are available for olfactory sampling.
    Central to the Common Ground Fair, like all country fairs, are agriculture and rural skills. A team of oxen strain under the weight of logs they are pulling. Border collies bead down on sheep, demonstrating their herding skills and the training skills of their owners. A bearded, young man swings an adze as the log on which he is standing takes on a square cross-section. Another bearded man helps a young boy pull a bow back and forth until smoke curls up from the round, maple peg rubbing the round notch in a maple board: fire-making without matches.
 Common Ground Fair, fire making   In other tents, these with closed, darkened flaps, someone standing near a flap holds the attention of a seated crowd in the darkened interior. No, not a cult gathering. Throughout each of the three fair days, workshops are offered in such diverse topics as “Farm-Raised Kids on an Organic Farm in Maine,” “Backyard Grain Growing,” “Advanced Seed Saving,” “Growing Grass-fed Vegetables,” and “Weedless Gardening.”  (The last was one of the three workshops I held at the fair.)
Common Ground Fair, barn dance

Old-Fashioned Fun

    Common Ground Fair is “retro,” an improvement on country and county fairs, in doing less. No amplified voices of barkers try to woo you in to win a stuffed gorilla. In fact, a three-year-old boy trying to pound an oversize sledge hammer onto a pad as a test of strength, with a lot of help from his mom, was the only strength or skill test I saw — and no prizes offered.
    No rides either. No fun? Given the happy whoops of the slew of children running up a grassy slope with flattened cardboard boxes, then jumping on them with a running start to slide down, I’s say they were having fun.Common Ground Fair, grass slide
    Just about everything at the fair is made or grown in Maine. (Used to be that everything had to be grown in Maine, which put coffee drinkers on edge. Maine-roasted coffee is now available at the fair.)
    Twilight is wondrous at the fair, mostly because you can see the twilight. No strings of electric lights bring the fair to new life at the end of the day. Most people leave. The only light, besides the setting sun, is the soft, yellow glow of lanterns or campfires. The fragrance of the campfires and the sounds of campers’ home-grown music around the campfires are the parting senses as I leave the fair.     

My Favorite Garden Designer

    Beatrix Farrand is a name that most people do not recognize, although she was a woman who created some of the most beautiful landscapes and gardens in the world. And she did so at a time — in the early 20th century — when such professions were not open to women. Much of her landscape work was in Maine, on Mt. Desert Island, as was her home, Reef Point.
    Reef Point was Beatrix’s family estate; under her care, it evolved into a horticultural heaven, with garden areas woven together by grassy paths. Spruce trees created microclimates that allowed azaleas and other plants not usually adapted to cold of Maine winters and the buffeting by ocean winds to survive and thrive. The gardens, the experimental plantings, and their descriptions in Farrand’s Reef Point Bulletins were all part of her vision of Reef Point as an educational enterprise.
 Garland Farm   Alas, Reef Point Gardens did not fulfill the vision: wildfire and lack of funding forced Ms. Farrand to down-size. She dismantled Reef Point and moved to an addition she had built attached the home of Lewis and Amy Garland, the superintendent and chief horticulturalist of her Reef Point Estate.
    Garland Farm — my last stop on my visit to Maine — was Beatrix Farrand’s final design, incorporating many architectural elements and plants salvaged from Reef Point. In contrast to Ms. Farrand’s other projects, which included designs for Princeton University, Rockefellers’ Seal Harbor estate, The Mount (home of Edith Wharton, Beatrix’s aunt), Dumbarton Oaks (my favorite of all gardens), and the Santa Barbara Botanic Garden, Garland Farm is a small garden.
    Looking out the French doors of Ms. Farrand’s study at Garland Farm onto the small parterre garden, your eyes are carried along a path to a Buddhist statue. Along that path are beds home to lavender, heathers, and other plants with year ‘round effect. The whole area is defined by a low balustrade, setting it off from the view of the meadow and grove of Norway spruce trees in the distance. This garden incorporates the same design principles — axis, year ‘round effect, structure, and integration of views — on an intimate scale, that were so successful in Beatrix Farrand’s larger projects.