When to plant zucchini 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 zucchini in Zone 10

The harvest estimate counts 55 days to maturity, then a picking window of about 42 days. These windows use typical frost dates for Zone 10; Dibble pins them to your exact ZIP code.

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Zucchini in a Zone 10 season

Zone 10 gives about 318 frost-free days. Zucchini 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.

How to grow zucchini

Sow summer squash a week after last frost. One or two plants feed a family, pick young and often.

Companion plants

Good neighbors for Zucchini:

Better kept apart:

Zucchini in other zones

Not in Zone 10? Pick your zone for the same dated windows.

Keep exploring

Zucchini: 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.