DibbleWhen to plant pumpkins in Zone 9
In Zone 9, the last spring frost usually passes around March 1 and the first fall frost arrives around December 1, leaving about 275 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Very long season. Plant cool crops in fall and winter; manage summer heat.
Planting windows for pumpkins in Zone 9
| Task | Window |
|---|---|
| Direct sow | Mar 29 to Apr 12 |
| Estimated harvest | Jul 17 to Aug 7 |
The harvest estimate counts 110 days to maturity, then a picking window of about 21 days. These windows use typical frost dates for Zone 9; Dibble pins them to your exact ZIP code.
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Pumpkin in a Zone 9 season
Zone 9 gives about 275 frost-free days. Pumpkin needs roughly 110 days from sowing. That leaves about 165 days of slack, so there is room for a late start or a second planting.
How to grow pumpkins
Give pumpkins plenty of room. Sow once the soil is warm and nights stay mild, timing it so the fruit ripens in dry weather. Cure the mature fruit in the sun before storing.
Companion plants
Good neighbors for Pumpkin:
Better kept apart:
Pumpkin in other zones
Not in Zone 9? Pick your zone for the same dated windows.
Keep exploring
Pumpkin: the full growing guide · The Zone 9 planting calendar · Every crop and zone
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Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.