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Can You Grow Pumpkin in Washington?
US · USDA Zone 8b · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Pumpkins grow well here — they love the warm season and produce reliably with enough space.
Plant zones
Washington last frost
Washington first frost
Days to harvest
When to plant Pumpkins in Washington
Start indoors
Transplant
Harvest
Dates are approximate, based on Washington'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.
Gardening in Washington
Washington has dramatically different climates. The wet maritime west (Zone 8a-8b) is mild and productive year-round. Eastern Washington is semi-arid and colder (Zone 5-6) with hot dry summers.
Frequently asked questions
Can you grow Pumpkin in Washington?
Pumpkins grow well here — they love the warm season and produce reliably with enough space.
What zone is Washington?
Washington spans USDA Zone 8b (4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b).
When do you plant Pumpkins in Washington?
Plant Pumpkins around late January (start indoors Jan 9), harvest Apr 15 – May 10.