What Grows in Clay City, Kentucky

USDA Zones 7a-8b · 678 acres

Clay City, Kentucky, sits in USDA hardiness zones 7a-8b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.

Expect pawpaw, tomato, blackberry, and redbud to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.

Score your parcel · free

Even in Clay City, no two yards are alike.

A low spot, a south-facing slope, or a stand of trees moves the frost date and sun across a single Clay City lot. Enter your address and we'll score 1,112 plants against your land's actual soil, sun, and frost.

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

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Quick Facts

USDA Zones

7a-8b

Last Hard Freeze (28°F)

Mar 5

Town normal — light frosts run a few weeks later

First Hard Freeze (28°F)

Nov 29

Town normal — light frosts arrive a few weeks earlier

City Area

678 acres

Hardiness Zone Range

7a
8b
3a (Cold)13b (Hot)

Zone maps are averages across Clay City. Your yard's slope, trees, and frost pockets shift what actually grows — see your land's exact reading.

Soil varies lot by lot — soil types explained.

Is it too late to plant in Clay City?

For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 5; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 5 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 29 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.

Growing Challenges in Kentucky

What an experienced grower plans around here — each one has a move.

Heavy clay soils in the Bluegrass region

Bluegrass clay opens up with steady compost — or start above it in a raised bed and grow while the ground improves.

High humidity promotes fungal diseases

Space wide, water mornings at the base, and favor resistant varieties — your extension's disease-resistant lists earn their keep here.

Karst topography creates drainage unpredictability

Karst ground drains erratically — watch where water goes in a hard rain before siting beds, and mound up where it lingers.

For cultivar selection, pest pressure, and planting-time guidance specific to Kentucky, the University of Kentucky Cooperative Extension is the authoritative local source.

Environmental Intelligence

Understanding what's nearby helps you make informed decisions about where and how to grow.

Total Sites

140

within ~10 miles of Clay City

Risk Level

Elevated

Highest-severity

1 Superfund site

Severity Distribution

within ~10 miles of Clay City

High1Moderate55Low84

Highest-Severity Sites

Burke-Parsons Bowlby Corp
Superfund · Superfund (Non-NPL)
Airport Market
Underground Storage Tanks · Open UST(S)
Apple Market #537
Underground Storage Tanks · Open UST(S)
Burke-Parsons-Bowlby Corp
Toxics Release Inventory · 40380brkpr132ma
Clay City Flea Market
Underground Storage Tanks · Open UST(S)

A note from Gnorman

What an experienced grower watches for around here

In and around Clay City, two things run higher than the national average — PFAS (3 sites) and Underground Storage Tanks (106 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.

PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.

Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.

Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.

Use raised beds with imported soil — this eliminates the primary soil-contact pathway.

Free Report

Check your specific parcel in Clay City

Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,112 plant recommendations.

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources analyzed in seconds

Your Specific Parcel Matters

Clay City Average

  • USDA Zones 7a-8b
  • Generic soil type for the area
  • State-average frost dates

YOUR Parcel

  • Your exact hardiness zone
  • Your SSURGO soil type & pH
  • Your sun exposure, cast in 3D

See MY Growing Report

Free Report

Read your specific parcel in Clay City

Pull a site-specific report for your exact address in Clay City, Kentucky — soil, sun, drainage, frost risk, and scored plant recommendations.

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources analyzed in seconds

Key Growing Facts for Clay City, Kentucky

  • USDA Hardiness Zones: 7a-8b (USDA PHZM 2023)
  • Last Hard Freeze (28°F): Mar 5 (town normal, NOAA 1991–2020 Climate Normals — light frosts can follow for a few weeks)
  • First Hard Freeze (28°F): Nov 29 (town normal, NOAA 1991–2020 Climate Normals — light frosts can arrive a few weeks earlier)
  • Days Between Hard Freezes: ~269 (town normal, NOAA 1991–2020 Climate Normals)
  • Land Area: 678 acres (US Census TIGER 2025)

Zone data: USDA ARS Plant Hardiness Zone Map 2023. Climate data: NOAA NCEI. Boundaries: US Census TIGER/Line 2025.

Frequently Asked Questions

What hardiness zone is Clay City, Kentucky?

Clay City sits in USDA hardiness zones 7a-8b, per the USDA Plant Hardiness Zone Map 2023. Zones reflect average annual extreme minimum temperatures from 1991–2020 weather data.

Is it too late to plant in Clay City?

For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 5; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 5 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 29 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.

When does frost risk typically end in Clay City?

The last hard freeze (28°F) in Clay City typically lands around Mar 5, per NOAA 1991–2020 climate normals — an earlier marker than the light-frost dates many planting charts quote. That marks the hard freeze, not the last light frost — light frosts can still bite for a few more weeks, so tender transplants usually wait another 2–3 weeks.

When is the first frost in Clay City?

The first hard freeze (28°F) in Clay City typically arrives around Nov 29, per NOAA 1991–2020 climate normals — the point most tender summer crops finish. Lighter frosts usually reach a couple of weeks earlier, so watch the forecast from late summer on and harvest or cover tender plants before the first cold night.

What vegetables grow in Clay City?

Clay City's zones 7a-8b support a wide range — strong performers include Pawpaw, Tomato, Blackberry, Redbud, and Kentucky Bluegrass. What actually takes on any one site comes down to its soil, sun, and drainage, and we score each plant against the real conditions at your address.

Which hardiness zone is Clay City, really?

Officially, Clay City sits in USDA zones 7a-8b (USDA PHZM 2023) — but a zone is a 30-year average of winter's coldest night across an area, and it can't see any one yard. A south-facing slope, a tree line, or a low frost pocket can shift a single site by half a zone either way, which is why neighboring gardeners often quote different numbers. We read the conditions at your exact address — soil, sun, slope, and frost — and score 1,112 plants against what's actually there.

Is the soil safe to grow vegetables in Clay City?

The federal record around Clay City is a meaningful one — 140 documented sites — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.

How do I protect my plants from frost in Clay City?

As the season closes around the first 28°F hard freeze near Nov 29 (NOAA 1991–2020 climate normals), a few moves buy time: cover tender plants with floating row cover or an old sheet on still, clear nights, water the soil the afternoon before a freeze so it holds warmth overnight, and harvest frost-tender crops like tomatoes, peppers, and basil before the first hard night. Hardy greens and root crops shrug off light frost and often sweeten after it, so leave them in.

Everything on this page is a Clay City average. Your yard writes its own version — we read soil, sun, drainage, and frost at your exact address. Try it for 14 days — no card required.