When to plant winter squash / pumpkin in Philadelphia
Common questions
When can I sow winter squash / pumpkin outdoors in Philadelphia?
Direct-sow around late April (Apr 30–May 21) in Philadelphia, based on its local frost dates. Confidence 84%.
When will winter squash / pumpkin be ready to harvest in Philadelphia?
Expect to harvest from around late July (Jul 24–Aug 28) in Philadelphia, based on its local frost dates. Confidence 78%.
When should I start winter squash / pumpkin seeds indoors in Philadelphia?
Start seeds indoors around mid March (Mar 20–Apr 10) in Philadelphia, based on its local frost dates. Confidence 83%.
When can I transplant winter squash / pumpkin outdoors in Philadelphia?
Transplant outdoors around late April (Apr 30–May 21) in Philadelphia, based on its local frost dates. Confidence 84%.
How long is the growing season in Philadelphia?
Philadelphia has roughly 234 frost-free days, which is enough time to grow winter squash / pumpkin to maturity outdoors.
Sow winter squash / pumpkin 6–8 weeks before your last spring frost; plant out 2–3 weeks after it. Every date on this page is derived from that rule and Philadelphia's frost dates.