GOOD FUNGI, BAD WEEDS
Myco . . . What?
There’s a fungus among us. Actually, fungi, all over the place. Right now, though, I’m focussed on a special group of fungi, a group that, as I look out the window on my garden, the meadow, and the forest, has infected almost every plant I see. Like so many microorganisms — most, in fact — these fungi are beneficial.
The fungi are called mycorrhizal fungi; they have a symbiotic relationship with plants. (“Mycorrhizae” comes from the Greek “myco,” meaning fungus, and “rhiza,” meaning root.) The plant and the fungus have an agreement: The plant offers the fungus carbohydrates which it makes from sunlight, carbon dioxide, and water; in exchange, the fungus infects plant roots and then spreads the other ends of its thread-like hyphae throughout the soil to act to be virtual extensions of the roots. The plant ends up garnering more mineral nutrients from the soil. The fungus also helps offer protection against pests and drought. It’s an arrangement that has worked for eons.
Except for where soil has been doused with heavy doses of pesticides or discombobulated by land excavation, mycorrhizae are everywhere. Only a few plant families get along without this symbiosis. Some more familiar, nonmycorrhizal plants include cabbage and its kin, carnations, lamb’s-quarters, and sedums. Other plants can grow without mycorrhizae, but then miss out on some of the benefits and don’t make most efficient use of minerals soil has to offer.
Why mention mycorrhiza at this moment of time? Two books on mycorrhiza were published this year; either one, but not both, are worth reading. Both cover the kinds of mycorrhizae, their effects, their nurturing, and probably everything else you might want to know about this symbiosis. 
Michael Phillips’ Mycorrhizal Planet will appeal more to the hip gardener, the one who burns wood for biochar for their soil, builds hugelkultur mounds (look it up), and spritzes plants with herbal extracts to boost their immune function. He’s mostly right when writing about mycorrhizae but often enters the land of woo-woo when venturing off-track. For instance, he writes, and then runs with, “many species of insects lack the digestive enzymes needed to break down complete proteins.” Not true.
The other book about mycorrhizae, Jeff Lowenfels’ Teaming with Fungi, presents a similar overview to mycorrhizal fungi, and their application, to that presented in Mycorrhizal Planet, with one notable difference. Teaming with Fungi details straightforward methods how you or I can actually grow our own mycorrhizae with which to inoculate plants to get them off to the best possible start.
The two books differ dramatically in their writing style. I eventually tired of Phillips’ overly flowery style and anthropomorphizing. “The synergy that unfolds as a result of outrageous diversity in the orchard delights me to no end . . . .The root systems of fast-growing tree with relatively pliable wood make barter possible between AM [arbuscular mycorrhize] and EM [ectomycorrhizae] fungi.” Lowenfels’ Teaming with Fungi is more firmly grounded in real science and application than Mycorrhizal Planet. I found Lowenfels’ writing more straightforward and engaging: “Some trees form AM, but others have evolved over time and are hosts to EM. Some trees are hosts to both forms of mycorrhizae, though usually at different periods in their lives.” (Different strokes for different folks.)
The mycorrhizal symbiosis was first studied and described in the latter half of the 19th century. Less long ago, but still long ago, I studied them as part of my doctoral work, specifically the ericoid mycorrhizae that are specific to blueberry plants and their kin. With the increased appreciation of the diversity, extent, and effect of the living world within the soil in recent years, mycorrhizae have moved into the spotlight. Read about them, nurture them, and make use of them.
And Weeds Among Us
Rising now to see what’s going on aboveground, I see that the garden has moved mostly into its maintenance phase for the season. That entails mowing, scything, making compost, keeping an eye out for pests and taking action, if necessary.
And, of course, weeding. My weeding weapons of choice are my hands, for larger interlopers, and either the winged weeder hoe or wire hoe for small ones. Called into action weekly, either of the two hoes easily slice through the top quarter inch of soil surface to do in small weeds that haven’t even yet poked their heads above ground. 
All the better to forestall the appearance of large weeds, which are much harder to kill and also threaten to spread seeds or grow strong roots. Regular hoeing also keeps the soil surface loose to better absorb rainfall.
Early July seems to be when true gardeners part ways with other gardeners. Regular weeding and other garden maintenance keeps the garden in good shape for the fall garden which, with good maintenance and planning, is like having a whole other garden, providing vegetables and flowers well into fall.
BLACKCAPS AND PRUNING
Blackcaps All Season (Almost)
It’s a bumper year for blackcaps (also know as black raspberries or, botanically, Rubus occidentalis), at least here on the farmden. Up to last year, we harvested wild blackcaps from plants that pop up at the edges of woods. The current bountiful harvest is from blackcaps that I planted a couple of years ago. Last year’s harvest was unimpressive because the plants were still settling into their new home.
Most blackcaps, like many other bramble fruits, have biennial canes that grow stems and leaves their first year, fruit in early summer of their second year, then die back to the ground. (Annual harvests are possible because while those second year canes are fruiting and then dying, the perennial roots are pushing up new canes, which will bear the following year.)
Niwot and Ohio’s Treasure, the two varieties I planted, stand out from the crowd in bearing on new, growing canes as well as on two-year-old canes. Their two-year-old canes, like those of run-of-the-mill blackcaps, bear now, in early summer. Berries are borne on new, growing canes towards the end of the growing season, until stopped by cold. The next season’s summer crop is borne lower down on those same canes. The upshot of all this is that I get to eat fresh blackcaps in early summer and then again in late summer.
I knew I could expect two crops each season from these varieties when I planted them. That’s why I planted them. What I didn’t know is how abundant and flavorful the berries would be. Unfortunately, for the purposes of evaluation, the two varieties are growing in separate locations that differ markedly from each other. The one in the better location — a humus-rich soil basking in abundant sunlight — yields oodles of large berries. The other variety — planted in a weedy bed shaded from the east by a greenhouse wall — yields less and smaller berries, with perhaps a tad better flavor.
Pruning Recipes
Pruning Niwot and Ohio’s Treasure is as important for ease of picking and pest control as it is for other brambles. And it’s easy.
Right after the current crop grinds to a halt, I’ll cut every cane that bore fruit right to the ground. These two-year-old canes are going to be starting to die anyway. I could cut them down in winter, but cutting them sooner gets the thorny canes out of the way of late summer harvest.
All summer long, I’ll also pinch out the growing tip of any new canes when they reach about four feet in height. Pinching induces side shoots, on which fruits are borne.
That’s it for summer pruning. Sometime next winter I’ll reduce each clump of canes to the six healthiest and shorten each side shoot on remaining canes to about 18 inches long.
All in all, Niwot and Ohio’s Treasure yield a lot of delicious fruit over a long period of time for minimal effort. Now, if only the canes were thornless.
And More Pruning
Whoa, I can’t yet put away the pruning shears. I need the shears for some rose bushes. With the rose “crop” subsided, pruning will get varieties that bear only in June ready for next season, and those that bear again and again through summer to bear again and again.
For roses that bear only once each season, such as the heavenly scented Rose D’Ipsahan, or the cheery, lemon-colored blossoming Father Hugo’s Rose, I cut back some very old stems right to or near ground level, and shorten the remaining stems, some by a quarter of their length, others by three quarters of their length. Then I go over the bush to thin out any crowded stems. This pruning makes room for and stimulates growth of new shoots with ample time for them to initiate flower buds this summer that will unfold next spring.
Repeat blooming roses get pruned differently. The goal is to cut off stems with spent flowers and coax new growth that will flower this season. Instructions for pruning hybrid tea roses are very specific; and I quote: “. . . . cut the stem back to a five-leaflet leaf. Retain at least two five-leaflet leaves on each shoot.”
I don’t grow hybrid teas, which generally are finicky roses, preferring tougher roses such as some of the David Austin varieties, such as L. D. Braithewaite
Braithewaite rose
and Charlotte. Pruning is very simple. I just lop stems or groups of stems laden with spent blossoms as far back as I feel like to keep the shrubs from growing too large. They both get another pruning in late winter.
Another rose I grow, rugosa rose, won’t get any pruning this summer. Besides its nonstop, fragrant flowers, rugosa rose also bears nice hips, that is, fruits. The hips make excellent jam and are rich in vitamin C. Pruning in summer would remove spent flowers which then couldn’t go on to swell into fat hips.
OUT WITH THE OLD, IN WITH THE NEW
In Which I Emulate George Washington
It’s about 10 years since I planted the cherry tree, a sweet, self-pollinating variety called Stella, on dwarfing rootstock. During that time, the trunk swelled to about 7 inches in diameter and the branches shot skyward to 20 feet.
Stella is now gone, and it was all my doing. She took ten years to grow but only about an hour to cut down (with my new Stihl cordless electric chain saw, which I highly recommend). Afterlife of her trunk is as firewood, her branches as chipped mulch.
I warned Stella, who never bore one cherry, that this was her last chance. Finally, this spring she was loaded with blossoms, for the first time, followed by a good crop of developing cherries. A couple of weeks later, all the cherries were gone, except for two green ones I noticed on a cut branch. The weather could not have been at fault, nor birds at this early stage in the game. My guess is either an insect, probably plum curculio, or that the tree from the nursery was mislabeled, and it wasn’t Stella. Most varieties of sweet cherry need another variety nearby to set fruit.
She was pretty, but not pretty enough to grow as a strictly ornamental plant.
Oranges, Outdoors, In New York!
Waiting to replace Stella was a citrus(!) tree, a tree I could not have planted even a couple or years ago.
One reason I couldn’t have planted this tree is because it wasn’t a citrus tree back then. It’s a plant called hardy orange, previously assigned the genus and species Poncirus trifoliata. It’s always been a close relative of citrus, even used as a rootstock on which to graft commercial citrus trees. Only recently has it been fully welcomed into the fold and re-assigned the botanical name Citrus trifoliate. So previously I would have been planting a Poncirus but now I planted a Citrus. Same plant, different name.
The other reason I couldn’t have — or shouldn’t have — planted hardy orange under any name previously is because it’s only just barely winter hardy here. Winters of a few years ago were consistently colder and would have killed the plant down to the ground.
With stems cut back from cold, the plant would never have borne flowers, which have the look and delicious fragrance of other citrus flowers, or fruits, which look just like golfball-sized oranges. The flavor of the fruit is nothing to rave about, citrus-y yes, but also very sour, bitter, and not very juicy. Used with restraint, though, the fruits can be used for home-grown citrus flavoring.
The stems themselves, and their ominous thorns are hardy orange’s selling points here. The plant is evergreen, not because it holds onto its leaves through winter but because the stems are bright green year ‘round. My hardy orange is the variety Flying Dragon, whose twisting and turning stems are lined with ominously large, recurved — and also green — thorns.
Flying Dragon is a very interestingly attractive plant that can be used as flavoring, which is more that could have been said for my Stella.
Gumi Good
Except for Stella cherries, this year is shaping up to be an excellent year for fruits, even apples, plums, and other tree fruits, which are always chancy on my farmden, which is a naturally poor site for fruit growing.
Among many other fruits in the offing is a bumper crop of bright red, gold-flecked gumi fruits (Eleaegnus multiflora). The fruits followed sweet-smelling blossoms that perfumed the air earlier in the season and are an ornamental adjunct to the silvery leaves. Plus, the fruits have good flavor if picked thoroughly ripe.
The birds are having a field day with the gumis, so I only get to eat the fruits in their puckery stage when just that hint of good flavor can be detected in the background.
I’ve hung old CD’s among gumi’s branches, also among my mulberries’ branches, hoping the flashes of reflected light will scare birds away. It probably won’t because visual deterrents, when they are effective, are so mostly against flocking birds. The gumis are being enjoyed mostly by robins and catbirds.
Let the birds have their fun. Black currants, which birds ignore, are also now ripe. And blueberries — my favorite — are ripening, and safe from birds enclosed in the netted “blueberry temple.”
