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Can You Grow Sunflower in Alaska?

US · USDA Zone 4b · zones 1a, 1b, 2a, 2b

Grows well here

Sunflowers grow brilliantly here — they love the warm season and produce quickly.

Plant zones

2a–11b

Alaska last frost

mid-April

Alaska first frost

mid-October

Days to harvest

60–80 days

When to plant Sunflowers in Alaska

Direct sow

Apr 15

Harvest

Jun 14 – Jul 4

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

About Sunflower

Sunflowers are fast-growing cheerful and attract pollinators — some varieties produce edible seeds.

Direct sow after last frost in the sunniest spot available. No transplanting needed. Giant varieties need staking. Harvest seed heads when the back turns brown and seeds are firm.

Full sunflower growing guide →

Gardening in Alaska

Alaska ranges from subarctic to maritime climates. The interior has very short summers but intense sunlight. Coastal areas are milder. Cold-hardy crops and greenhouses are key.