
September has arrived and here in Manitoba the temperatures have already slid downward. Monday evening the temperature went down to 2o Celsius (35o F.) Very glad I had taken my basil inside! It would not have appreciated that chill and it’s doing very well right now. There is lots more good eating to come from that plant. When I’m home it can go out for the day but pretty soon it will become a houseplant, under grow lights.
Many people are already looking forward to cleaning up the garden and largely not thinking about it until Spring. May I suggest an alternative? I think people should relax and enjoy the Fall. Sit in the sun, even if a down vest is required, enjoy a beverage, admire the changing leaves, watch the birds gather to migrate.
There are a number of good reasons to leave your garden. First, for those of us in cold climates, snow is our best blanket and insulator for roots and crowns. With the foliage up, plants will trap snow; it will shield the soil from temperature fluctuations right through until Spring. It also means that spring melt will offer extra moisture right where you need it: at your plants’ roots.
Second, from a design point of view, I find that the foliage of perennials and shrubs peeking from the snow to be far more interesting to the eye than a bland bank of snow. Of course trees are standing tall but something more at knee height offers easy views. The colourful twigs of dogwoods (Cornus), the persistent berries of chokeberry (Aronia) or the tan blooms of hydrangea (Hydrangea) are all interesting in a sea of whiteness.
Perhaps the most important reason to leave your garden: it will protect our pollinators and native insects. Many bugs over-winter in the foliage of plants, near the roots or just under the soil surface. They survive as eggs, larvae or pupae, as well as adults. Yes, some may be ‘bad’ bugs but most will be benign if not beneficial. Here’s an excellent article from the Manitoba Museum on plants and insects surviving our frigid winter. Another plus: many of these blooms and berries will provide food for birds through a cold winter, bringing life to the garden.
Can you do it? Can you leave your garden to Mother Nature’s care?