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Can You Grow Sunflower in Ohio?

US · USDA Zone 5b · zones 5a, 5b, 6a

Grows well here

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

Plant zones

2a–11b

Ohio last frost

early April

Ohio first frost

late October

Days to harvest

60–80 days

When to plant Sunflowers in Ohio

Direct sow

Apr 7

Harvest

Jun 6 – Jun 26

Dates are approximate, based on Ohio'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 Ohio

Ohio has a humid continental climate. Northern Ohio near Lake Erie is Zone 6a; inland areas are Zone 5b. Four seasons with a productive 6-month growing window.