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Can You Grow Sunflower in Arizona?

US · USDA Zone 9a · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a

Grows well here

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

Plant zones

2a–11b

Arizona last frost

late January

Arizona first frost

late December

Days to harvest

60–80 days

When to plant Sunflowers in Arizona

Direct sow

Jan 20

Harvest

Mar 21 – Apr 10

Dates are approximate, based on Arizona'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 Arizona

Arizona spans dramatic climate zones from cool mountain forests to hot desert. Low-elevation cities like Phoenix grow year-round; high-elevation areas are Zone 5-6.

See what grows well in Arizona →

Frequently asked questions

Can you grow Sunflower in Arizona?

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

What zone is Arizona?

Arizona spans USDA Zone 9a (4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a).

When do you plant Sunflowers in Arizona?

Plant Sunflowers Jan 20, harvest Mar 21 – Apr 10.