Canadian Gardening‘s Green Room at last weekend’s Style at Home Show was a busy place. The glorious plants in all their autumn glory, lent to us courtesy of Sheridan Nurseries, drew many admirers. And as the organizer of much of the programming and master (mistress?) of ceremonies on Saturday and Sunday, I had the opportunity to listen to some super-knowledgeable speakers. Here are some snippets of good advice they offered. Look for my next post for info on flower arranging and creating winter container displays.
Dugald Cameron (of gardenimport.com) informed us that fall is the best time to plant (or divide) your peonies. The reason? This is the only time of year they show their “eyes”–those little white bud-like affairs seen just below the soil surface when you dig them up. Any divisions must have at least one eye, though several are preferable (Dugald often goes for four). When you plant your peony, make sure its eyes are level and positioned 1 1/2 to 2 inches below the soil. It’s also not too late to plant many spring bulbs. (Of course, this depends on where you garden–here in the Toronto area [mostly Zone 5 and 6] many hard-core, forgetful or procrastinating gardeners don’t even think about planting their tulips or lilies until November.)
Charlie Dobbin demonstrated a lasagna-type layered planting of spring bulbs in a large frostproof container, which then gets buried underground (or stored in a dark root cellar if you happen to have one). Here, you’re forcing the bulbs to come into bloom earlier than they would when planted in the ground, so that in very early spring, you can excavate the pot outdoors, put it in a prominent place in your patio or garden and enjoy waves of spring blooms for six weeks or more (those lucky folks with root cellars need only move their pot up to a bright spot indoors for a grand show). Charlie says, “make sure the container has drainage holes, and use a commercial potting mix. Start with about four inches of soil, then place the largest bulbs at the bottom of the pot and ignore the advice on spacing. Just jam them in, cover with about 4 inches of soil then add another layer of bulbs in the same way until you get near the top, and top it all with four inches of soil. Water, and “plant” into the ground–or store in a dark root cellar.”
Denis Flanagan talked about putting your garden to bed for the winter, and the news is good if you’re a bit lazy. “Basically, don’t do too much,” he advises. Don’t clean up–leave your perennials standing so their seedheads provide food for birds and a place to catch the snow [good advice, too, if you're a novice gardener, as it'll prevent you from inadvertently digging up plants next spring before they show signs of life]. And don’t rake the leaves off your beds, instead, pile more on. Both Dugald and Denis remarked on how handy it was their neighbours put out big bags of leaves for collection by the city–they could go around and help themselves. Water in evergreens well, and use an anti-dessicant spray, such as Wiltproof, on prized broadleafed evergreens–such as euonymus, mahonia and holly–spraying the underside of their leaves only. This is where their pores are, and the spray helps lock in moisture to protect leaves against drying out.