When should I plant zucchini in ZIP 85001?

In ZIP 85001, the main zucchini target is around Feb 15, based on the representative Phoenix frost station and USDA zone 10a.

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 85001 planting calendar

In ZIP 85001, plant zucchini around Feb 15.

Your Phoenix calendar has a 313-day estimated frost-free season. This estimate uses the representative Phoenix frost station, USDA zone 10a, and zucchini timing rules.

USDA zone 10a Phoenix frost station University of Arizona Extension Updated 2026-06-28

Read the method

Season map

Zucchini windows by month

JanFebMarAprMayJunJulAugSepOctNovDec

Start indoors

Jan 15

Direct sow

Feb 15

Transplant

Feb 15

Harvest

Apr 11

Frost watch

Oct 21

Reminder workflow

Every date has a next action

Start zucchini indoorsJan 15

Last frost windowFeb 5

Direct sow zucchiniFeb 15

Transplant zucchiniFeb 15

First zucchini harvest windowApr 11

Last zucchini sowing targetOct 21

Signal	Value	Why it matters
Last frost estimate	February 5, 2026	Warm-season transplant risk starts falling after this window.
First frost estimate	December 15, 2026	Fall planting counts backward from this date.
Season length	313 days	Longer seasons can support succession crops.
Spacing	24-36 in	Airflow and root space affect yield.
Soil temperature	65 F+	Seeds and transplants stall in cold soil.

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Local data

Why this date changes by ZIP

Phoenix frost history and USDA zone 10a shift the safe planting window. GrowZone uses a local representative station instead of one national rule.

University of Arizona 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

Zucchini timing notes

One or two healthy plants can feed a household. Zucchini prefers full sun, 24-36 in spacing, and soil near 65 F+.

For fall, count backward from Dec 15. A conservative last sowing target is around Oct 21.