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Can You Grow Florence Fennel in Minnesota?

US · USDA Zone 4a · zones 2b, 3a, 3b, 4a, 4b

Grows well here

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

Plant zones

4a–9b

Minnesota last frost

late April

Minnesota first frost

early October

Days to harvest

65–90 days

When to plant Florence Fennels in Minnesota

Direct sow

Apr 25

Harvest

Jun 29 – Jul 24

Dates are approximate, based on Minnesota'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 Minnesota

Minnesota has a cold humid continental climate. The Twin Cities are Zone 4b-5a; northern Minnesota reaches Zone 2b-3a. Cold winters but warm productive summers.