DibbleWhen to plant blueberries 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 blueberries in Zone 10
| Task | Window |
|---|---|
| Transplant | Jan 10 to Jan 24 |
| Estimated harvest | May 10 to Jun 9 |
The harvest estimate counts 120 days to maturity, then a picking window of about 30 days. These windows use typical frost dates for Zone 10; Dibble pins them to your exact ZIP code.
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Blueberry in a Zone 10 season
Zone 10 gives about 318 frost-free days. Blueberry needs roughly 120 days from transplant. That leaves about 198 days of slack, so there is room for a late start or a second planting.
How to grow blueberries
Plant bare-root bushes in early spring in acidic soil. A long-lived perennial, full crops come in a few years, so be patient.
Companion plants
Good neighbors for Blueberry:
Blueberry in other zones
Not in Zone 10? Pick your zone for the same dated windows.
Keep exploring
Blueberry: 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.