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Can You Grow Pumpkin in Pennsylvania?
US · USDA Zone 6a · zones 5a, 5b, 6a, 6b
Pumpkins grow well here — they love the warm season and produce reliably with enough space.
Plant zones
Pennsylvania last frost
Pennsylvania first frost
Days to harvest
When to plant Pumpkins in Pennsylvania
Start indoors
Transplant
Harvest
Dates are approximate, based on Pennsylvania'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 Pennsylvania
Pennsylvania has a humid continental climate. Philadelphia is Zone 7a; Pittsburgh is Zone 6a; northern Pennsylvania is Zone 5a-5b. Four distinct seasons with a 6-7 month growing window.
Frequently asked questions
Can you grow Pumpkin in Pennsylvania?
Pumpkins grow well here — they love the warm season and produce reliably with enough space.
What zone is Pennsylvania?
Pennsylvania spans USDA Zone 6a (5a, 5b, 6a, 6b).
When do you plant Pumpkins in Pennsylvania?
Plant Pumpkins around early April (start indoors Mar 11), harvest Jun 15 – Jul 10.