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Can You Grow Basil in Iowa?

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

Grows well here

Basil thrives here — it loves the summer heat your zone provides.

Plant zones

4a–11b

Iowa last frost

mid-April

Iowa first frost

mid-October

Days to harvest

30–60 days

When to plant Basils in Iowa

Start indoors

Mar 18

Transplant

Apr 15

Harvest

May 15 – Jun 14

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

About Basil

Basil is the quintessential summer herb — heat-loving fast-growing and endlessly productive when harvested regularly.

Start indoors 4-6 weeks before last frost. Pinch flower buds to keep the plant producing leaves. Never let it set seed. Water at the base — wet leaves cause disease. Loves heat.

Full basil growing guide →

Gardening in Iowa

Iowa has a humid continental climate with cold winters and warm summers. Most of the state is Zone 5a-5b. Excellent for cool-season crops and hardy fruits.