Leetonia, Ohio, sits in USDA hardiness zone 6a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
The conditions favor cabbage, hazelnut, lavender, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Leetonia, 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 Leetonia 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 Leetonia — soil, climate, flood, and parcel records. How we handle your address.
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Leetonia — the short answer
Leetonia, Ohio: USDA zone 6a, about 182 days between hard freezes, across 1K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~182
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 6a is Leetonia's average, not your lot's — a low corner or a tree line moves it. Against Leetonia's 182-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Leetonia
Each reading below is measured for Leetonia itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLeetonia runs about 182 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredLeetonia sits in USDA hardiness zone 6a.
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 Leetonia is in
Leetonia sits in the Erie Drift Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Leetonia's own centroid rather than borrowed from Columbiana County.
What Grows in Leetonia
Every plant below cleared Leetonia's own zone 6a and its 182-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in Leetonia?
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 Mar 26; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 23 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 22 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
Documented around Leetonia
Spotted lanternfly documented 6 miles from Leetonia, first recorded 2023. What to watch for.
What's on the federal record near Leetonia
Closest first, within ~10 miles of Leetonia. Listing isn't leaking, and distance isn't exposure.
- CMG LLCToxics Release Inventory · 2200 ft
- VILLAGE OF LEETONIAUnderground Storage Tanks · 2300 ft
- MOBIL STATIONUnderground Storage Tanks · 2300 ft
- FAMILY DOLLAR #11158Brownfields · 2400 ft
- TAYLOR'S SUNOCOUnderground Storage Tanks · 0.5 mi
- BERNARD STRAUBUnderground Storage Tanks · 0.7 mi
- MITSUBISHI HEAVY IND AMERICA INCBrownfields · 0.9 mi
- PENNEX ALUMINUM CO LLCBrownfields · 0.9 mi
- PENNEX ALUMINUM CO LLCToxics Release Inventory · 0.9 mi
- MORRIS AUTO BODYBrownfields · 1.5 mi
- CITY OF WASHINGTONVILLEUnderground Storage Tanks · 1.5 mi
- SHOPPER'S CHOICE MARATHON INCUnderground Storage Tanks · 1.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Leetonia'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 Leetonia.
Sources Checked
within ~10 miles of Leetonia
Severity Distribution
within ~10 miles of Leetonia
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Leetonia, two things run higher than the national average within ~10 miles of Leetonia — PFAS (4 sites) and Superfund (6 sites). That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Leetonia
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 Leetonia average
Your land is one point inside Leetonia
Everything above resolves to Leetonia as a whole — one PHZM band and one 28°F frost record, read across 1K 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 town 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 Leetonia Average
Leetonia Average
- ●USDA Zones 6a, averaged across Leetonia
- ●One soil character for all of Leetonia
- ●Frost dates read at Leetonia's scale: Apr 23 to Oct 22
YOUR Parcel
- ✓Your exact zone, not Leetonia's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Leetonia
Pull a site-specific report for your exact address in Leetonia, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Leetonia averages can't show:
We read public map data around Leetonia — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Leetonia average
How we know this about Leetonia
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Leetonia’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 town grain anywhere on this page — there is no town-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 Leetonia
When does frost risk typically end in Leetonia?
The last hard freeze (28°F) in Leetonia typically lands around Apr 23, 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 May 14.
When is the first frost in Leetonia?
The first hard freeze (28°F) in Leetonia typically arrives around Oct 22, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 8, so the watching starts about Sep 22 — about 182 days after the spring freeze cleared.
How long is the growing season in Leetonia?
Measured between 28°F hard freezes, Leetonia sees about 182 frost-free days — roughly Apr 23 through Oct 22, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 14 to Oct 8, about 147 days.
Is the soil safe to grow vegetables in Leetonia?
The federal record around Leetonia is a meaningful one — 351 documented sites, mostly Underground Storage Tanks entries (178), the nearest Toxics Release Inventory 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 Leetonia?
From about Sep 22 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 Oct 22 (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 Oct 22. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Leetonia's scale — its 6a band and its 182-day season. Your yard writes its own version of Leetonia'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 Leetonia’s own scale
7 of the readings below were taken at Leetonia's own scale — its own ~182-day season between 28°F freezes, the 1,448 acres it covers and 351 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Leetonia's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Leetonia's own 28°F hard-freeze dates, about Apr 23 and Oct 22 and the ~182-day span between themNOAA 1991–2020 Climate Normals
- 351 documented contamination sites on the federal record near Leetonia, the closest Toxics Release Inventory record about 0.4 miles out from the town centreFederal environmental registers
- Leetonia's boundary and the 1,448 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~182-day seasonGrowable Ground crop-matching engine
- The ecoregion at Leetonia's own centroid, the Erie Drift PlainUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Leetonialydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Leetonia's 1,448 acres read through its county's SSURGO summaryfrom Columbiana County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Columbiana County
- The growing challenges every Ohio grower plans around — written at state scale, so they stay on the state guidefrom Ohio
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Columbiana County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Leetonia's 1,448 acreswhy one lot differs from the next →
- Which side of Leetonia you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,448 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Toxics Release Inventory 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 Leetonia-wide figureread your own land →
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