What hardiness zone is Edmonton?

Edmonton is in Canadian Hardiness Zone 3. Prairie/boreal – full veggie garden, many perennials

When is the last frost in Edmonton?

The average last frost date in Edmonton is Mid May (May 15–25). Always watch local forecasts as it varies year to year.

What vegetables grow best in Edmonton?

Zone 3 gardens in Edmonton do well with cold-hardy brassicas, root vegetables, and many perennials. With a short frost-free period of around 100 days, choose varieties with days-to-maturity suited to your zone.

Gardening in Edmonton, Alberta | GardeningKnowHow.ca

Gardening in Alberta

Alberta gardeners work with some of the most variable climate in Canada – from warm Chinooks to late spring frosts. Zone 3 conditions dominate, but microclimates near Foothills and river valleys push some areas into Zone 4. The long summer days and rich prairie soil reward dedicated growers.

Gardening in Calgary

Video

Woman tending a flower garden in Calgary — Tending the flower beds

Woman picking flowers with the Calgary skyline behind her — Picking flowers, city skyline

Woman harvesting vegetables in a Calgary rooftop garden — Rooftop harvest

Planting Calendar – June 2026

Edmonton

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Growing season Shoulder This month

Task	Details
Start Indoors	Succession sow lettuce every 2 weeks
Direct Sow	All warm-season crops now safe Zone 3+
Key Tasks	Mulch beds; set up drip irrigation

Frost Dates – Edmonton

🌸

Last Spring Frost

Mid May (May 15–25)

🍂

First Fall Frost

Late September (Sep 20–30)

Frost-free period: Approximately 100 days. Always check Environment Canada's local forecast — frost dates can vary by 2–3 weeks depending on microclimates, elevation, and annual weather patterns.