GrowZone

Crop by USDA zone

When to plant cucumbers in zone 10a

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

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 cucumbers dates by ZIP code.

Seed starting schedule

Cucumbers dates for Oakland, CA

StepDateHow to use it
Start IndoorsJanuary 11, 2026Start 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.