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Can You Grow Florence Fennel in Indiana?

US · USDA Zone 5b · zones 5a, 5b, 6a

Grows well here

Florence fennel grows well here — it likes warm days and cool nights for bulb development.

Plant zones

4a–9b

Indiana last frost

early April

Indiana first frost

late October

Days to harvest

65–90 days

When to plant Florence Fennels in Indiana

Direct sow

Apr 7

Harvest

Jun 11 – Jul 6

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

About Florence Fennel

Florence fennel produces an anise-flavored bulb at the base — sliced raw into salads or roasted, it is a Mediterranean staple. Note: fennel inhibits nearby plant growth, so keep it isolated in the garden.

Direct sow after last frost — fennel dislikes transplanting. Sow 1/4 inch deep, thin to 12 inches. Keep soil consistently moist while bulbing. Harvest when bulbs are 3 inches wide. Do NOT plant near tomatoes or peppers.

Full florence fennel growing guide →

Gardening in Indiana

Indiana has a humid continental climate. Northern Indiana is Zone 5a-5b; southern Indiana is warmer at Zone 6a. Four distinct seasons with a 5-6 month growing window.