DibbleWhen to plant broccoli in Zone 10
In Zone 10, the last spring frost usually passes around January 31 and the first fall frost arrives around December 15, leaving about 318 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Nearly frost-free. Grow cool crops in winter; summers are too hot for many vegetables.
Planting windows for broccoli in Zone 10
| Task | Window |
|---|---|
| Start seeds indoors | Dec 20 to Jan 3 |
| Transplant | Jan 17 to Jan 31 |
| Estimated harvest | Mar 23 to Apr 13 |
The harvest estimate counts 65 days to maturity, then a picking window of about 21 days. These windows use typical frost dates for Zone 10; Dibble pins them to your exact ZIP code.
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How to grow broccoli
Start indoors 6 weeks before last frost; transplant 2 weeks before. Cut the central head, then enjoy side shoots for weeks.
Companion plants
Good neighbors for Broccoli:
Better kept apart:
Broccoli in nearby zones
Keep exploring
Broccoli: the full growing guide · The Zone 10 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.