GrowZone

Crop by USDA zone

When to plant basil in zone 10a

In USDA zone 10a, plant basil around Feb 11, after the representative last frost near Feb 1. Start seeds indoors around Dec 28.

This page summarizes the supported ZIPs in zone 10a. Your exact city can move earlier or later, so use the ZIP lookup for the frost-station-specific answer.

Get exact basil dates by ZIP code.

Seed starting schedule

Basil dates for Oakland, CA

StepDateHow to use it
Start IndoorsDecember 28, 2025Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsFebruary 11, 2026Move hardened-off seedlings outside after the frost-risk window.
Direct SowFebruary 11, 2026Sow seed outside when the crop and soil can handle the window.
Tampa, FL · Zone 10a Basil Feb 11 Open ZIP-specific answer · last frost Feb 1 Phoenix, AZ · Zone 10a Basil Feb 15 Open ZIP-specific answer · last frost Feb 5 Mesa, AZ · Zone 10a Basil Feb 15 Open ZIP-specific answer · last frost Feb 5 San Francisco, CA · Zone 10a Basil Feb 4 Open ZIP-specific answer · last frost Jan 25 Oakland, CA · Zone 10a Basil Feb 11 Open ZIP-specific answer · last frost Feb 1