When to plant rosemary 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 rosemary in Zone 10

The harvest estimate counts 120 days to maturity, then a picking window of about 200 days. These windows use typical frost dates for Zone 10; Dibble pins them to your exact ZIP code.

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Rosemary in a Zone 10 season

Zone 10 gives about 318 frost-free days. Rosemary 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 rosemary

Plant a nursery transplant in full sun and sharp drainage. In rainy climates set it on a mound or in a pot so water drains away. Tender: where winters freeze, grow it in a pot and bring it in for the cold months.

Companion plants

Good neighbors for Rosemary:

Rosemary in other zones

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

Keep exploring

Rosemary: 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.