DibbleWhen to plant leeks 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 leeks in Zone 10
| Task | Window |
|---|---|
| Start seeds indoors | Nov 22 to Dec 6 |
| Transplant | Jan 17 to Jan 31 |
| Estimated harvest | May 17 to Jul 1 |
The harvest estimate counts 120 days to maturity, then a picking window of about 45 days. These windows use typical frost dates for Zone 10; Dibble pins them to your exact ZIP code.
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Leek in a Zone 10 season
Zone 10 gives about 318 frost-free days. Leek 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 leeks
Start indoors 10 weeks before last frost. Transplant into a deep hole and hill soil up the stem to blanch the white shanks.
Companion plants
Good neighbors for Leek:
Better kept apart:
Leek in other zones
Not in Zone 10? Pick your zone for the same dated windows.
Keep exploring
Leek: 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.