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Can You Grow Fava Beans in Iowa?

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

Grows well here

Fava beans are ideal for your cool climate — sow early and harvest before summer heat sets in.

Plant zones

3a–8b

Iowa last frost

mid-April

Iowa first frost

mid-October

Days to harvest

80–100 days

When to plant Fava Beanses in Iowa

Direct sow

Apr 15

Harvest

Jul 4 – Jul 24

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

About Fava Beans

Fava beans (broad beans) are a cool-season legume prized in Mediterranean, Middle Eastern, and North African cuisines. They are one of the earliest spring crops — planted before last frost while soil is still cold.

Direct sow 4-6 weeks before last frost — favas need cool conditions to set pods and fail in summer heat. Support with stakes as plants grow to 4-5 feet. Pinch out growing tips when in flower to reduce aphid problems and improve pod set. Harvest pods when beans are just visible through the pod.

Full fava beans 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.