What hardiness zone is Yellowknife?

Yellowknife is in Canadian Hardiness Zone 1. Subarctic – very short season, hardy annuals only

When is the last frost in Yellowknife?

The average last frost date in Yellowknife is Late June. Always watch local forecasts as it varies year to year.

What vegetables grow best in Yellowknife?

Zone 1 gardens in Yellowknife do well with cold-hardy brassicas, root vegetables, and many perennials. With a short frost-free period of around 50 days, choose varieties with days-to-maturity suited to your zone.

Gardening in Yellowknife, Northwest Territories

Gardening in Northwest Territories

Northwest Territories gardeners work in Zone 1–2 conditions with permafrost challenges and a very short growing season. Raised beds, high tunnels, and cold-hardy varieties make home food production possible and deeply rewarding in Canada's North.

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 – August 2026

Yellowknife

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Growing season Shoulder This month

Task	Details
Start Indoors	Start leeks for overwintering (mild zones)
Direct Sow	Fall greens: spinach, arugula, mâche
Key Tasks	Harvest garlic when tops die back

Frost Dates – Yellowknife

🌸

Last Spring Frost

Late June

🍂

First Fall Frost

Mid August

Frost-free period: Approximately 50 days. Always check Environment Canada's local forecast — frost dates can vary by 2–3 weeks depending on microclimates, elevation, and annual weather patterns.