What Grows in Bourbon County, Kentucky

USDA Zones 6b · 185K acres

Bourbon County, in Kentucky, sits in USDA hardiness zone 6b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.

These conditions suit pawpaw, tomato, blackberry, and redbud — a starting list any specific site will trim or extend with its own soil, sun, and drainage.

Bourbon County lies within the Kentucky Bluegrass — a regional growing area with its own character.

Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals

Score your parcel · free

Bourbon County holds more than one microclimate.

Soils and elevations shift across Bourbon County, so your frost dates and drainage aren't the county average. 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.

No card required · your full report in seconds

Quick Facts

USDA Zones

6b

Last Hard Freeze (28°F)

Mar 9

County normal — light frosts run a few weeks later

First Hard Freeze (28°F)

Nov 25

County normal — light frosts arrive a few weeks earlier

County Area

185K acres

Hardiness Zone Range

6b6b
3a (Cold)13b (Hot)

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

Soil in Bourbon County

Across Bourbon County, the ground is predominantly Alfisols, where Faywood, Lowell, and Bluegrass are the most extensive named soil series. The soil is generally well drained with a silt loam surface. Topsoil pH runs about 6.1–6.5, slightly acidic. Rainfall drains through hydrologic group C soils.

Soil order

Alfisols

Drainage

Well drained

Prime farmland

41%

Hydric soils

1%

Soil still varies lot by lot — soil types explained.

Is it too late to plant in Bourbon County?

Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 9; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 9 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 25 — long-season crops need about 90 days of runway, quick greens only 30. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.

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.

Safe to Grow Here?

What the federal record shows across Bourbon County — and how to grow with it.

Federal record: Elevated

We checked the federal record across Bourbon County119 documented sites across 6 of the 9 source types we track.

The most significant on record: 8 Toxics Release Inventory facilities. Active industrial facilities reporting chemical releases to air, water, and land.

There's a meaningful federal record across Bourbon County — worth a look before you plant food, not a reason to hold back from growing. Proximity to a documented site is information, not a diagnosis of any one yard. A soil test before new food beds is the sensible precaution here, and the map shows exactly which sites sit where, so you can see what's actually near you.

Sources: EPA, USGS1.8M documented sites tracked nationwide across 9 federal source types.

Environmental Intelligence

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

Total Sites

119

across Bourbon County

Risk Level

Elevated

Highest-severity

8 Toxics Release Inventory facilities

Severity Distribution

across Bourbon County

High4Moderate39Low76

Highest-Severity Sites

Cassius M. Clay Veins
Mining Sites · Past Producer
Hoggin Veins
Mining Sites · Past Producer
Marsh Vein
Mining Sites · Past Producer
Paris Water Works
PFAS Sampling · PFAS Detected
1st Stop INC of Millersburg
Underground Storage Tanks · Open UST(S)

A note from Gnorman

What an experienced grower watches for around here

In and around Bourbon County, two things run higher than the national average — Underground Storage Tanks (85 sites) and Toxic Release Inventory (8 sites). That's not a problem with your land — it's information about it.

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

Toxic Release Inventory: TRI facilities report annual chemical releases to air, water, and land.

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

Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.

Free Report

Check your specific parcel in Bourbon County

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

Bourbon County Average

  • USDA Zones 6b
  • 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 parcel in Bourbon County

Pull a site-specific report for your exact address in Bourbon County, 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 Bourbon County, Kentucky

  • USDA Hardiness Zones: 6b (USDA PHZM 2023)
  • Last Hard Freeze (28°F): Mar 9 (county normal, NOAA 1991–2020 Climate Normals — light frosts can follow for a few weeks)
  • First Hard Freeze (28°F): Nov 25 (county normal, NOAA 1991–2020 Climate Normals — light frosts can arrive a few weeks earlier)
  • Days Between Hard Freezes: ~261 (county normal, NOAA 1991–2020 Climate Normals)
  • County Land Area: 185K acres (US Census TIGER 2025)

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

Frost dates here are the Bourbon County average. Low spots and tree cover move them by days on any one yard — see your exact frost windows.

Frequently Asked Questions

What hardiness zone is Bourbon County, Kentucky?

Bourbon County sits in USDA hardiness zone 6b, 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 Bourbon County?

Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 9; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 9 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 25 — long-season crops need about 90 days of runway, quick greens only 30. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.

When does frost risk typically end in Bourbon County?

The last hard freeze (28°F) in Bourbon County typically lands around Mar 9, 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.

How long is the growing season in Bourbon County?

Measured between 28°F hard freezes, Bourbon County sees about 261 frost-free days — roughly Mar 9 through Nov 25, per NOAA 1991–2020 climate normals. Tender crops get a somewhat shorter practical window, since lighter frosts reach a few weeks past the hard-freeze dates on both ends.

What vegetables grow in Bourbon County?

Bourbon County's zone 6b supports 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 Bourbon County, really?

Officially, Bourbon County sits in USDA zone 6b (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 Bourbon County?

The federal record around Bourbon County is a meaningful one — 119 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.

Just moved to Bourbon County — what should I know before planting?

Start with three facts. Bourbon County sits in USDA zone 6b, which sets what survives winter; the last 28°F hard freeze typically clears around Mar 9, with about 261 frost-free days to work with (NOAA 1991–2020 climate normals); and 119 documented sites sit on the federal record here, so a soil test before food beds is the smart first step. From there, matching plants to your actual soil and sun is the fun part.

Everything on this page is a Bourbon County 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.

Will It Grow Here?

Zone fit is the first question — each answer below reads Kentucky's frost window, season length, and soil profile against the plant's real requirements.