What Eats Onion in Quebec, and When
Quebec gardens see onion damage from three insects with real track records nearby: onion maggot, leek moth, and seedcorn maggot.
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.
What Eats Potato in Quebec, and When
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What Eats Parsnip in Quebec, and When
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Roof Snow Load, Wind Speed and Ice Barrier Rules in Quebec
Quebec’s roof snow load, wind pressure and ice-barrier rules come from Montréal’s NBC 2020 figures, with municipal by-laws deciding the rest for houses.
When to Overseed a Lawn in Quebec
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First and Last Frost Dates in Quebec
The average last spring frost for the Montreal area lands on May 6, and the average first fall frost arrives October 5, based on Environment and Climate…
When to Pick Tomatoes in Quebec, and Ripening the Rest
The safest rule for Quebec tomatoes: get every fruit off the vine before frost settles in, whether it’s blushed pink or still rock-hard and green.
When to Harvest Garlic in Quebec, and How to Cure It
Garlic planted the previous fall in Quebec is typically ready to lift in mid-to-late July, once the bottom third to half of the leaves have browned while…
When to Pick Apples in Quebec, and How Long They Keep
Quebec’s growing season runs from an average last frost on May 6 to an average first frost on October 5, a window of roughly five months that decides…
Does Insulation Keep a Home in Quebec Cool?
Yes, but in Quebec the reason has little to do with air conditioning. The reference station for the province shows essentially zero days above 90°F a…