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 – September 2026

Whitehorse

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Growing season Shoulder This month

Task	Details
Start Indoors	Garlic planting begins (plant before freeze)
Direct Sow	Winter crops in cold frame (Zone 5+)
Key Tasks	Collect & dry seeds; compost healthy tops

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.