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ZIP 40202 planting calendar

When to plant peppers in Louisville, KY - Zone 7a

In ZIP 40202, plant peppers around Apr 29; this uses the Louisville frost station, USDA zone 7a, and peppers timing rules.

Your Louisville calendar has a 193-day estimated frost-free season. This estimate uses the representative Louisville frost station, USDA zone 7a, and peppers timing rules.

Source: louisville-intl frost station, USDA zone 7a, 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 7a Louisville frost station University of Kentucky Cooperative Extension Updated 2026-06-28
Read the method

Answer first

When to start peppers seeds indoors in Louisville

In ZIP 40202, start peppers seeds indoors around Feb 18, about 56 days before the Apr 15 last-frost estimate.

Start peppers seeds indoors in Louisville around Feb 18, about 56 days before the Apr 15 last-frost estimate.

Seed starting schedule

Peppers dates for Louisville, KY

StepDateHow to use it
Start IndoorsFebruary 18, 2026Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsApril 29, 2026Move hardened-off seedlings outside after the frost-risk window.

Last frost

When is the last frost in Louisville?

Louisville (ZIP 40202) has an average last spring frost around Apr 15.

First frost

When is the first frost in Louisville?

The average first fall frost is around Oct 25, giving about 193 frost-free days.

Season map

Peppers windows by month

JanFebMarAprMayJunJulAugSepOctNovDec
Start indoors
Feb 18
Transplant
Apr 29
Harvest
Jul 23
Frost watch
Aug 1

Reminder workflow

Every date has a next action

Start peppers indoorsFeb 18
Last frost windowApr 15
Transplant peppersApr 29
First peppers harvest windowJul 23
Last peppers sowing targetAug 1
SignalValueWhy it matters
Last frost estimateApril 15, 2026Warm-season transplant risk starts falling after this window.
First frost estimateOctober 25, 2026Fall planting counts backward from this date.
Season length193 daysLonger seasons can support succession crops.
Spacing18 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

Louisville frost history and USDA zone 7a shift the safe planting window. GrowZone uses a local representative station instead of one national rule.

University of Kentucky Cooperative 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

Peppers timing notes

Peppers stall in cold soil, so wait for warm nights. Peppers prefers full sun, 18 in spacing, and soil near 65 F+.

For fall, count backward from Oct 25. A conservative last sowing target is around Aug 1.