What hardiness zone is Whitehorse?

Whitehorse is in Canadian Hardiness Zone 2. Cold northern prairie – cold-hardy perennials & vegs

When is the last frost in Whitehorse?

The average last frost date in Whitehorse is Late May – early June. Always watch local forecasts as it varies year to year.

What vegetables grow best in Whitehorse?

Zone 2 gardens in Whitehorse do well with cold-hardy brassicas, root vegetables, and many perennials. With a short frost-free period of around 80 days, choose varieties with days-to-maturity suited to your zone.

Gardening in Whitehorse, Yukon | GardeningKnowHow.ca

Gardening in Yukon

Yukon's Zone 1–2 conditions and legendary long summer days (20+ hours!) create a unique gardening challenge. Frost can occur in any month, but the intense Arctic summer light drives extraordinary plant growth. Giant vegetables are a proud Yukon tradition.

Gardening in Calgary

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Woman harvesting vegetables in a Calgary rooftop garden — Rooftop harvest

Planting Calendar – August 2026

Whitehorse

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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 – Whitehorse

🌸

Last Spring Frost

Late May – early June

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First Fall Frost

Early September

Frost-free period: Approximately 80 days. Always check Environment Canada's local forecast — frost dates can vary by 2–3 weeks depending on microclimates, elevation, and annual weather patterns.