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Can You Grow Basil in Wisconsin?

US · USDA Zone 5a · zones 3b, 4a, 4b, 5a, 5b

Grows well here

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

Plant zones

4a–11b

Wisconsin last frost

mid-April

Wisconsin first frost

mid-October

Days to harvest

30–60 days

When to plant Basils in Wisconsin

Start indoors

Mar 18

Transplant

Apr 15

Harvest

May 15 – Jun 14

Dates are approximate, based on Wisconsin'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 Wisconsin

Wisconsin has a cold humid continental climate. Milwaukee is Zone 5b-6a; northern Wisconsin is Zone 4a-5a. Cold winters but warm productive summers. Known for dairy farming and cold-hardy crops.

See what grows well in Wisconsin →

Frequently asked questions

Can you grow Basil in Wisconsin?

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

What zone is Wisconsin?

Wisconsin spans USDA Zone 5a (3b, 4a, 4b, 5a, 5b).

When do you plant Basils in Wisconsin?

Plant Basils around mid-April (start indoors Mar 18), harvest May 15 – Jun 14.