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Can You Grow Sunflower in Washington?
US · USDA Zone 8b · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Sunflowers grow brilliantly here — they love the warm season and produce quickly.
Plant zones
Washington last frost
Washington first frost
Days to harvest
When to plant Sunflowers in Washington
Direct sow
Harvest
Dates are approximate, based on Washington'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.
Gardening in Washington
Washington has dramatically different climates. The wet maritime west (Zone 8a-8b) is mild and productive year-round. Eastern Washington is semi-arid and colder (Zone 5-6) with hot dry summers.
Frequently asked questions
Can you grow Sunflower in Washington?
Sunflowers grow brilliantly here — they love the warm season and produce quickly.
What zone is Washington?
Washington spans USDA Zone 8b (4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b).
When do you plant Sunflowers in Washington?
Plant Sunflowers Jan 30, harvest Mar 31 – Apr 20.