DibbleWhen to plant sweet potatoes 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 sweet potatoes in Zone 10
| Task | Window |
|---|---|
| Transplant | Feb 21 to Mar 7 |
| Estimated harvest | Jun 1 to Jun 15 |
The harvest estimate counts 100 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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Sweet Potato in a Zone 10 season
Zone 10 gives about 318 frost-free days. Sweet Potato needs roughly 100 days from transplant. That leaves about 218 days of slack, so there is room for a late start or a second planting.
How to grow sweet potatoes
Plant slips 3 weeks after last frost when soil is thoroughly warm. Harvest before the first fall frost nips the vines.
Companion plants
Good neighbors for Sweet Potato:
Better kept apart:
Sweet Potato in other zones
Not in Zone 10? Pick your zone for the same dated windows.
Keep exploring
Sweet Potato: 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.