Rose chafer in Quebec: When It Shows Up and What Stops It
Rose chafers show up in Quebec gardens roughly two to four weeks after the last spring frost, once soil temperatures climb enough to trigger adult…
Gardening in Quebec
Everything we have worked out for Quebec: what to plant and when, which varieties finish in time, the pests that actually turn up here, and the jobs that pay off month by month. We also cover the rest of the property, from lawns and soil to home care and energy, because a garden rarely stops at the vegetable bed.
The numbers first, because everything else follows from them. Measured at the weather station in Montreal, the last spring freeze falls around May 6 and the first fall freeze falls around October 5, 2,268 growing degree days in the year.
That is enough for early varieties, tight for anything late. Garlic does well: 30.4 weeks below 40 °F, comfortably past the six it needs to form a proper head.
Elsewhere on the property in Quebec: the pests that turn up here.
Figures from Environment and Climate Change Canada. A state is not one climate: elevation, a large lake or the coast can move these dates by two weeks either way, so check your own county with the extension service before you spend money.
European chafer in Quebec: When It Shows Up and What Stops It
European chafer grubs chew through grass roots long before anyone notices a wilting lawn or a raccoon-torn patch of turf.
Asian jumping worms in Quebec: When It Shows Up and What Stops It
Asian jumping worms don’t wait for a date on the calendar in Quebec, they wait for the soil to warm past a certain point after the frost breaks.
Dark-winged fungus gnats in Quebec: When It Shows Up and What Stops It
Dark-winged fungus gnats show up in Quebec once soil in seed trays, containers, or freshly turned garden beds stays consistently moist and mild, usually…
Green stink bug in Quebec: When It Shows Up and What Stops It
Green stink bugs show up in Quebec gardens once soil and air temperatures climb through late spring, usually a few weeks after tomatoes and beans go into…
Leek moth in Quebec: When It Shows Up and What Stops It
Leek moth larvae start feeding on allium crops once soil and air warm past a certain point, not on a fixed calendar day.
Spongy moth in Quebec: When It Shows Up and What Stops It
Spongy moth caterpillars start chewing through hardwood canopies in Quebec as soon as tree buds break, usually well before most gardeners have even…
Garden Pests in Quebec: What Shows Up, When, and How to Stop It
Quebec’s short, intense growing season packs a surprising punch of insect and wildlife pressure into just a few months.
Spotted wing drosophila in Quebec: When It Shows Up and What Stops It
Spotted wing drosophila starts cutting into ripening fruit in Quebec as early as mid-June, with populations exploding through July and August.
Seedcorn maggot in Quebec: When It Shows Up and What Stops It
Seedcorn maggot damage in Quebec peaks during the first three to four weeks after snowmelt, when soil temperatures hover in the 45-55°F range and…