La Crête, Alberta is in plant hardiness zone 2a on the current Natural Resources Canada map (4th edition, based on 1991–2020 climate normals). No Environment Canada station within 60 km publishes frost normals for this location, so use the nearest county guide and log your own frost dates.
Hardiness zone by city. Darker is milder. Tap a dot to open that place.
Planting, hardiness and grow zone in La Crête
"Growing zone", "planting zone" and "hardiness zone" all refer to the same thing in Canada: the plant hardiness zone, which predicts which perennials, trees and shrubs survive the winter. It does not tell you when to plant vegetables; frost dates do that.
Zone 2 is cold even by prairie standards. Choose the hardiest stock and expect a short, cool season.
Haskap, saskatoon and chokecherry
Sour cherries from the University of Saskatchewan series
Hardy crabapples and the hardiest prairie apples on hardy rootstock
Siberian pea shrub (caragana), lilac and native shrubs for shelterbelts
Potatoes, peas, carrots, kale and other cool-season vegetables
Buy perennials rated for zone 2a or colder. Cold-air pockets, low ground and exposed sites in and around La Crête can run a full zone colder than the map.
Frost dates near La Crête
Average dates from Environment and Climate Change Canada's 1991–2020 climate normals at the stations nearest La Crête. Stations in towns usually show a longer season than open farmland nearby, which is why the numbers differ.
No station within 60 km publishes frost normals.
When to plant in La Crête
Cool-season crops (peas, spinach, lettuce, radish, potatoes) can go in a few weeks before the last frost, once the soil can be worked.
Frost-tender crops (tomatoes, peppers, squash, beans, cucumbers) go out after the last frost and many local gardeners wait an extra week.
Trees, shrubs and perennials rated zone 2a or colder can be planted in spring or early fall.
Common questions
What growing zone is La Crête, Alberta?
La Crête is in Canadian plant hardiness zone 2a on Natural Resources Canada's current map (4th edition, 1991–2020 climate normals).
When is the last frost in La Crête?
No nearby station publishes a frost normal; log your own dates and use the county guide.
Is La Crête zone 2a on the USDA map?
Not necessarily. The USDA map uses only the average coldest winter temperature, while the Canadian map also weighs frost-free days, rain, snow cover and wind, so the two numbers often differ by about half a zone. Check which system a plant label uses.