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Can You Grow Sweet Potato in Northwest Territories?

Canada · Canadian Zone 1 · zones 0, 1, 2

Won't grow here

Sweet potatoes need a long warm season (90+ frost-free days above 18°C) this zone cannot reliably provide.

Plant zones

5a–11b

Northwest Territories last frost

mid-June

Northwest Territories first frost

mid-August

Days to harvest

90–120 days

When to plant Sweet Potatoes in Northwest Territories

Direct sow

Jun 15

Harvest

Sep 13 – Oct 13

Dates are approximate, based on Northwest Territories's average frost dates. Your exact yard may vary by microclimate.

About Sweet Potato

Sweet potatoes need a long warm season and thrive in heat — they are a subtropical crop at heart.

Plant slips (rooted cuttings) after soil warms to 18°C. They sprawl — give them space or train vertically. Cure harvested tubers at 30°C for a week to develop sweetness and improve storage.

Full sweet potato growing guide →

Gardening in Northwest Territories

The NWT has an arctic to subarctic climate. Only the very hardiest crops survive the extremely short summer. Gardening under cover is the primary approach.

See what grows well in Northwest Territories →

Frequently asked questions

Can you grow Sweet Potato in Northwest Territories?

Sweet potatoes need a long warm season (90+ frost-free days above 18°C) this zone cannot reliably provide.

What zone is Northwest Territories?

Northwest Territories spans Canadian Zone 1 (0, 1, 2).

When do you plant Sweet Potatoes in Northwest Territories?

Plant Sweet Potatoes Jun 15, harvest Sep 13 – Oct 13.