When should I plant spinach in ZIP 78701?

In ZIP 78701, the main spinach target is around Feb 5, based on the representative Austin frost station and USDA zone 8b.

When should I start spinach seeds indoors in 78701?

Spinach is usually direct-sown for ZIP 78701. Use the Feb 5 planting window instead of starting it indoors.

Is this a guaranteed planting date?

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

ZIP 78701 planting calendar

When to plant spinach in Austin, TX - Zone 8b

Q: When is the first frost in Austin?

Austin (ZIP 78701) has an average first fall frost around Nov 20, leaving about 260 frost-free days.

In ZIP 78701, plant spinach around Feb 5; this uses the Austin frost station, USDA zone 8b, and spinach timing rules.

Your Austin calendar has a 260-day estimated frost-free season. This estimate uses the representative Austin frost station, USDA zone 8b, and spinach timing rules.

Source: austin-bergstrom frost station, USDA zone 8b, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

USDA zone 8b Austin frost station Texas A&M AgriLife Extension Updated 2026-06-28

Read the method

Answer first

When to start spinach seeds indoors in Austin

In ZIP 78701, spinach is usually direct-sown around Feb 5 instead of started indoors.

Spinach is normally direct-sown in Austin. Use around Feb 5 as the outdoor planting window for ZIP 78701.

Seed starting schedule

Spinach dates for Austin, TX

Step	Date	How to use it
Direct Sow	February 5, 2026	Sow seed outside when the crop and soil can handle the window.

Last frost

When is the last frost in Austin?

Austin (ZIP 78701) has an average last spring frost around Mar 5.

First frost

When is the first frost in Austin?

The average first fall frost is around Nov 20, giving about 260 frost-free days.

Season map

Spinach windows by month

JanFebMarAprMayJunJulAugSepOctNovDec

Direct sow

Feb 5

Harvest

Mar 22

Frost watch

Oct 6

Reminder workflow

Every date has a next action

Direct sow spinachFeb 5

Last frost windowMar 5

First spinach harvest windowMar 22

Last spinach sowing targetOct 6

Signal	Value	Why it matters
Last frost estimate	March 5, 2026	Warm-season transplant risk starts falling after this window.
First frost estimate	November 20, 2026	Fall planting counts backward from this date.
Season length	260 days	Longer seasons can support succession crops.
Spacing	4-6 in	Airflow and root space affect yield.
Soil temperature	40 F+	Seeds and transplants stall in cold soil.

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Local data

Why this date changes by ZIP

Austin frost history and USDA zone 8b shift the safe planting window. GrowZone uses a local representative station instead of one national rule.

Texas A&M AgriLife Extension is the kind of local source to verify against when a crop is expensive, weather is unusual, or your yard has a cold pocket.

Crop note

Spinach timing notes

Plant early and again in late summer for fall leaves. Spinach prefers sun to part shade, 4-6 in spacing, and soil near 40 F+.

For fall, count backward from Nov 20. A conservative last sowing target is around Oct 6.