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ZIP 32202 planting calendar

When to plant zucchini in Jacksonville, FL - Zone 9a

In ZIP 32202, plant zucchini around Mar 11; this uses the Jacksonville frost station, USDA zone 9a, and zucchini timing rules.

Your Jacksonville calendar has a 279-day estimated frost-free season. This estimate uses the representative Jacksonville frost station, USDA zone 9a, and zucchini timing rules.

Source: jacksonville-intl frost station, USDA zone 9a, 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 9a Jacksonville frost station University of Florida IFAS Extension Updated 2026-06-28
Read the method

Answer first

When to start zucchini seeds indoors in Jacksonville

In ZIP 32202, start zucchini seeds indoors around Feb 8, about 21 days before the Mar 1 last-frost estimate.

Start zucchini seeds indoors in Jacksonville around Feb 8, about 21 days before the Mar 1 last-frost estimate.

Seed starting schedule

Zucchini dates for Jacksonville, FL

StepDateHow to use it
Start IndoorsFebruary 8, 2026Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsMarch 11, 2026Move hardened-off seedlings outside after the frost-risk window.
Direct SowMarch 11, 2026Sow seed outside when the crop and soil can handle the window.

Last frost

When is the last frost in Jacksonville?

Jacksonville (ZIP 32202) has an average last spring frost around Mar 1.

First frost

When is the first frost in Jacksonville?

The average first fall frost is around Dec 5, giving about 279 frost-free days.

Season map

Zucchini windows by month

JanFebMarAprMayJunJulAugSepOctNovDec
Start indoors
Feb 8
Direct sow
Mar 11
Transplant
Mar 11
Harvest
May 5
Frost watch
Oct 11

Reminder workflow

Every date has a next action

Start zucchini indoorsFeb 8
Last frost windowMar 1
Direct sow zucchiniMar 11
Transplant zucchiniMar 11
First zucchini harvest windowMay 5
Last zucchini sowing targetOct 11
SignalValueWhy it matters
Last frost estimateMarch 1, 2026Warm-season transplant risk starts falling after this window.
First frost estimateDecember 5, 2026Fall planting counts backward from this date.
Season length279 daysLonger seasons can support succession crops.
Spacing24-36 inAirflow and root space affect yield.
Soil temperature65 F+Seeds and transplants stall in cold soil.

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Local data

Why this date changes by ZIP

Jacksonville frost history and USDA zone 9a shift the safe planting window. GrowZone uses a local representative station instead of one national rule.

University of Florida IFAS 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 5. A conservative last sowing target is around Oct 11.