Question 1

When should I plant spinach in ZIP 93721?

Accepted Answer

In ZIP 93721, the main spinach target is around Jan 23, based on the representative Fresno frost station and USDA zone 9b.

Question 2

When should I start spinach seeds indoors in 93721?

Accepted Answer

Spinach is usually direct-sown for ZIP 93721. Use the Jan 23 planting window instead of starting it indoors.

Question 3

When is the last frost in Fresno?

Accepted Answer

Fresno (ZIP 93721) has an average last spring frost around Feb 20, based on the representative Fresno frost station.

Question 4

When is the first frost in Fresno?

Accepted Answer

Fresno (ZIP 93721) has an average first fall frost around Nov 25, leaving about 278 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.

Spinach is usually direct-sown around Jan 23

Spinach dates for Fresno, CA