GrowZone

Crop by USDA zone

When to plant tomatoes in zone 10a

In USDA zone 10a, plant tomatoes around Feb 8, after the representative last frost near Feb 1. Start seeds indoors around Dec 21.

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 tomatoes dates by ZIP code.

Seed starting schedule

Tomatoes dates for Oakland, CA

StepDateHow to use it
Start IndoorsDecember 21, 2025Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsFebruary 8, 2026Move hardened-off seedlings outside after the frost-risk window.
Tampa, FL · Zone 10a Tomatoes Feb 8 Open ZIP-specific answer · last frost Feb 1 Phoenix, AZ · Zone 10a Tomatoes Feb 12 Open ZIP-specific answer · last frost Feb 5 Mesa, AZ · Zone 10a Tomatoes Feb 12 Open ZIP-specific answer · last frost Feb 5 San Francisco, CA · Zone 10a Tomatoes Feb 1 Open ZIP-specific answer · last frost Jan 25 Oakland, CA · Zone 10a Tomatoes Feb 8 Open ZIP-specific answer · last frost Feb 1