GrowZone

Crop by USDA zone

When to plant zucchini in zone 7b

In USDA zone 7b, plant zucchini around Apr 20, after the representative last frost near Apr 10. Start seeds indoors around Mar 20.

This page summarizes the supported ZIPs in zone 7b. Your exact city can move earlier or later, so use the ZIP lookup for the frost-station-specific answer.

Get exact zucchini dates by ZIP code.

Seed starting schedule

Zucchini dates for Nashville, TN

StepDateHow to use it
Start IndoorsMarch 20, 2026Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsApril 20, 2026Move hardened-off seedlings outside after the frost-risk window.
Direct SowApril 20, 2026Sow seed outside when the crop and soil can handle the window.