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Can You Grow Sunflower in Utah?

US · USDA Zone 6a · zones 4a, 4b, 5a, 5b, 6a, 6b, 7a

Grows well here

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

Plant zones

2a–11b

Utah last frost

early April

Utah first frost

late October

Days to harvest

60–80 days

When to plant Sunflowers in Utah

Direct sow

Apr 1

Harvest

May 31 – Jun 20

Dates are approximate, based on Utah'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 Utah

Utah has an arid continental climate. Salt Lake City is Zone 6b-7a; southern Utah is Zone 7-8; mountains are Zone 4-5. Low humidity and alkaline soils require irrigation and soil amendment.