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Can You Grow Pumpkin in Wyoming?

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

Grows well here

Pumpkins grow well here — they love the warm season and produce reliably with enough space.

Plant zones

3b–11b

Wyoming last frost

mid-April

Wyoming first frost

mid-October

Days to harvest

75–100 days

When to plant Pumpkins in Wyoming

Start indoors

Mar 25

Transplant

Apr 15

Harvest

Jun 29 – Jul 24

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

About Pumpkin

Pumpkins need space warmth and sun — allow 2-4 square metres per plant for sprawling vines.

Direct sow or start indoors 3 weeks before last frost. Give each plant 2-4 sq metres. Water at the base to prevent fungal disease. Harvest when the skin is hard and the stem dries.

Full pumpkin growing guide →

Gardening in Wyoming

Wyoming has a semi-arid mountain climate with cold winters and short summers. Most of the state is Zone 4-5; protected low-elevation areas may reach Zone 5b-6a. Focus on hardy crops.