Woodburn, Kentucky, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Expect cabbage, hazelnut, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Woodburn, 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 Woodburn lot. Enter your address and we'll score 1,086 plants against your land's actual soil, sun, and frost.
We read public map data around Woodburn — soil, climate, flood, and parcel records. How we handle your address.
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Woodburn — the short answer
Woodburn, Kentucky: USDA zone 7a, about 228 days between hard freezes, across 277 acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~228
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 277 acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 7a is Woodburn's average, not your lot's — a low corner or a tree line moves it. Against Woodburn's 228-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Woodburn
Each reading below is measured for Woodburn itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWoodburn runs about 228 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredWoodburn sits in USDA hardiness zone 7a.
The zone sets which perennials, shrubs, and fruit trees live through an average winter here — a plant rated for a colder zone is a safe bet, one rated warmer needs winter protection or gets treated as an annual.
Match perennials and fruit to the zone before you buy, so nothing you plant is a gamble against the cold.
USDA PHZM 2023
The kind of country Woodburn is in
Woodburn sits in the Interior Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Woodburn's own centroid rather than borrowed from Warren County.
What Grows in Woodburn
Every plant below cleared Woodburn's own zone 7a and its 228-day season. Each card opens that plant's Kentucky profile. How we score.
Is it too late to plant in Woodburn?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Feb 27; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 27 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 10 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
What's on the federal record near Woodburn
Closest first, within ~10 miles of Woodburn. Listing isn't leaking, and distance isn't exposure.
- J13D0025Nitrate · 2200 ft
- Woodburn AutoUnderground Storage Tanks · 0.6 mi
- J13D0026Nitrate · 1.1 mi
- Lee CraftonUnderground Storage Tanks · 1.6 mi
- Oak Ridge GroceryUnderground Storage Tanks · 2.0 mi
- Crossroads MarketUnderground Storage Tanks · 3.1 mi
- J14C0018Nitrate · 3.1 mi
- FRITZ WINTER NORTH AMERICA LPToxics Release Inventory · 3.4 mi
- FRITZ WINTER NORTH AMERICA LPBrownfields · 3.4 mi
- J14A0071Nitrate · 3.5 mi
- Jimmy Sanders IncUnderground Storage Tanks · 3.6 mi
- VERMONT THREAD GAGE LLCBrownfields · 3.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Woodburn's center, not your beds. Run your own address for what's upwind of you specifically.
Environmental Intelligence
The counts behind that headline — every source type on the record near Woodburn.
Total Sites
346
within ~10 miles of Woodburn
Risk Level
Elevated
Highest-severity
7 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Woodburn
Severity Distribution
within ~10 miles of Woodburn
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Woodburn, two things run higher than the national average within ~10 miles of Woodburn — Toxics Release Inventory (50 sites) and Superfund (7 sites). That's not a problem with your land — it's information about it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Woodburn
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,086 plant recommendations.
25+ data sources read at your address, not the Woodburn average
Your land is one point inside Woodburn
Everything above resolves to Woodburn as a whole — one PHZM band and one 28°F frost record, read across 277 acres. Your parcel is one point inside that footprint. Slope, tree cover, a low spot that pools cold air, and what is in the soil are all resolved at the address, and none of them are visible at city scale. That is the honest boundary of this page, and the reason the next step is a reading of your own ground rather than a better local average.
Your Lot vs the Woodburn Average
Woodburn Average
- ●USDA Zones 7a, averaged across Woodburn
- ●One soil character for all of Woodburn
- ●Frost dates read at Woodburn's scale: Mar 27 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Woodburn's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Woodburn
Pull a site-specific report for your exact address in Woodburn, Kentucky — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Woodburn averages can't show:
We read public map data around Woodburn — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Woodburn average
How we know this about Woodburn
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Woodburn’s own record; boundaries and acreage from US Census TIGER/Line 2025; the contamination records from the federal sources named in their beats above. Soil is not read at city grain anywhere on this page — there is no city-resolution survey in our data, which is why you will find no soil grid here rather than a statewide one wearing a local label. The resolution ledger below names every figure this page inherited.
Common questions about Woodburn
When does frost risk typically end in Woodburn?
The last hard freeze (28°F) in Woodburn typically lands around Mar 27, per NOAA 1991–2020 climate normals — earlier than the light-frost dates most charts quote. That marks the hard freeze, not the last light frost — lighter frosts keep biting past it, which is why tender transplants here wait until about Apr 17.
When is the first frost in Woodburn?
The first hard freeze (28°F) in Woodburn typically arrives around Nov 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 27, so the watching starts about Oct 11 — about 228 days after the spring freeze cleared.
How long is the growing season in Woodburn?
Measured between 28°F hard freezes, Woodburn sees about 228 frost-free days — roughly Mar 27 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 17 to Oct 27, about 193 days.
Is the soil safe to grow vegetables in Woodburn?
The federal record around Woodburn is a meaningful one — 346 documented sites, mostly Underground Storage Tanks entries (213), the nearest Nitrate record about 0.4 miles out — 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 Woodburn?
From about Oct 11 the job here turns from planting to protecting — the last start even a 30-day crop can finish. As the season closes around the first 28°F hard freeze near Nov 10 (NOAA 1991–2020 climate normals), three moves buy time: row cover or an old sheet over tender plants on still, clear nights; water the soil the afternoon before a freeze, so it holds warmth overnight; and harvest tomatoes, peppers and basil before Nov 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Woodburn's scale — its 7a band and its 228-day season. Your yard writes its own version of Woodburn's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
What this page reads at Woodburn’s own scale
6 of the readings below were taken at Woodburn's own scale — its own ~228-day season between 28°F freezes, the 277 acres it covers and 346 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Woodburn's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Woodburn's own 28°F hard-freeze dates, about Mar 27 and Nov 10 and the ~228-day span between themNOAA 1991–2020 Climate Normals
- 346 documented contamination sites on the federal record near Woodburn, the closest Nitrate record about 0.4 miles out from the town centreFederal environmental registers
- Woodburn's boundary and the 277 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~228-day seasonGrowable Ground crop-matching engine
- The ecoregion at Woodburn's own centroid, the Interior PlateauUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Woodburn's 277 acres read through its county's SSURGO summaryfrom Warren County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Warren County
- The growing challenges every Kentucky grower plans around — written at state scale, so they stay on the state guidefrom Kentucky
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Warren County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Woodburn's 277 acreswhy one lot differs from the next →
- Which side of Woodburn you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 277 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.4 miles out, measured from the town centrehow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — measured at your address, and averaged away by any Woodburn-wide figureread your own land →