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Can You Grow Broccoli in Montana?

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

Grows well here

Broccoli grows well here as a spring or fall crop — time planting to avoid peak summer heat.

Plant zones

2a–9b

Montana last frost

mid-April

Montana first frost

mid-October

Days to harvest

60–80 days

When to plant Broccolis in Montana

Start indoors

Mar 3

Transplant

Apr 15

Harvest

Jun 14 – Jul 4

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

About Broccoli

Broccoli is a cool-season crop that produces best in spring and fall when temperatures are moderate.

Start indoors 6-8 weeks before last frost for spring planting or direct sow in midsummer for fall. Harvest the main head before it flowers — side shoots continue producing after.

Full broccoli growing guide →

Gardening in Montana

Montana has a semi-arid continental climate with cold winters and warm summers. Most of the state is Zone 4-5; protected valleys are Zone 5-6. Short but intense growing seasons.

See what grows well in Montana →

Frequently asked questions

Can you grow Broccoli in Montana?

Broccoli grows well here as a spring or fall crop — time planting to avoid peak summer heat.

What zone is Montana?

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

When do you plant Broccolis in Montana?

Plant Broccolis around mid-April (start indoors Mar 3), harvest Jun 14 – Jul 4.