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Can You Grow Pumpkin in Idaho?

US · USDA Zone 6b · zones 3b, 4a, 4b, 5a, 5b, 6a, 6b

Grows well here

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

Plant zones

3b–11b

Idaho last frost

mid-March

Idaho first frost

mid-November

Days to harvest

75–100 days

When to plant Pumpkins in Idaho

Start indoors

Feb 21

Transplant

Mar 15

Harvest

May 29 – Jun 23

Dates are approximate, based on Idaho'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 Idaho

Idaho has a semi-arid continental climate. Southern valleys are Zone 6-7 with hot dry summers; northern regions and mountains are colder. Excellent for root vegetables and cool crops.