Question 1

When should I plant zucchini in ZIP 77002?

Accepted Answer

In ZIP 77002, the main zucchini target is around Mar 2, based on the representative Houston frost station and USDA zone 9b.

Question 2

When should I start zucchini seeds indoors in 77002?

Accepted Answer

Start zucchini seeds indoors in ZIP 77002 around Jan 30, about 21 days before the Feb 20 last-frost estimate.

Question 3

When is the last frost in Houston?

Accepted Answer

Houston (ZIP 77002) has an average last spring frost around Feb 20, based on the representative Houston frost station.

Question 4

When is the first frost in Houston?

Accepted Answer

Houston (ZIP 77002) has an average first fall frost around Dec 5, leaving about 288 frost-free days.

Question 5

Is this a guaranteed planting date?

Accepted Answer

No. GrowZone uses frost-date estimates, hardiness zones, and crop timing rules for planning. Local microclimates and current weather can shift the right date.

Step	Date	How to use it
Start Indoors	January 30, 2026	Start seeds under lights or in a bright indoor seed-starting space.
Transplant Outdoors	March 2, 2026	Move hardened-off seedlings outside after the frost-risk window.
Direct Sow	March 2, 2026	Sow seed outside when the crop and soil can handle the window.

Start zucchini seeds indoors around Jan 30

Zucchini dates for Houston, TX