DibbleWhen to plant kohlrabi 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 kohlrabi in Zone 10
| Task | Window |
|---|---|
| Direct sow | Jan 17 to Jan 31 |
| Estimated harvest | Mar 13 to Mar 27 |
The harvest estimate counts 55 days to maturity, then a picking window of about 14 days. These windows use typical frost dates for Zone 10; Dibble pins them to your exact ZIP code.
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Kohlrabi in a Zone 10 season
Zone 10 gives about 318 frost-free days. Kohlrabi needs roughly 55 days from sowing. That leaves about 263 days of slack, so there is room for a late start or a second planting.
Sowing every 14 days, Zone 10 has room for about 19 plantings.
How to grow kohlrabi
Sow 4 weeks before last frost and again for fall. Harvest the swollen stem young, about tennis-ball size, for the sweetest crunch.
Companion plants
Good neighbors for Kohlrabi:
Better kept apart:
Kohlrabi in other zones
Not in Zone 10? Pick your zone for the same dated windows.
Keep exploring
Kohlrabi: 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.