Clarington, Ohio, sits in USDA hardiness zone 6b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Growers here do well with cabbage, hazelnut, lavender, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Clarington, 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 Clarington 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 Clarington — soil, climate, flood, and parcel records. How we handle your address.
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Clarington — the short answer
Clarington, Ohio: USDA zone 6b, about 208 days between hard freezes, across 732 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 4
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~208
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 732 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 6b is Clarington's average, not your lot's — a low corner or a tree line moves it. Against Clarington's 208-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Clarington
Each reading below is measured for Clarington itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredClarington runs about 208 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
MeasuredClarington sits in USDA hardiness zone 6b.
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 Clarington is in
Clarington sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Clarington's own centroid rather than borrowed from Monroe County.
What Grows in Clarington
Every plant below cleared Clarington's own zone 6b and its 208-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in Clarington?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 13; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 10 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 4 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Clarington
Spotted lanternfly documented 23 miles from Clarington, first recorded 2023. What to watch for.
What's on the federal record near Clarington
Closest first, within ~10 miles of Clarington. Listing isn't leaking, and distance isn't exposure.
- CLARINGTON STARFIREUnderground Storage Tanks · 1.1 mi
- ABANDONED ASHLAND STATIONUnderground Storage Tanks · 1.1 mi
- NATIRUM EXTRACTION AND FRACTIONATION PLANTUnderground Storage Tanks · 1.5 mi
- P B & S CHEMICAL COMPANY INCORPORATED PROCTOR PLANTToxics Release Inventory · 1.5 mi
- Mal-0409Nitrate · 1.5 mi
- BLUE RACER MIDSTREAM, LLC, NATRIUM EXTRACTION & FRACTIONABrownfields · 1.6 mi
- NATRIUM GAS PLANTToxics Release Inventory · 1.6 mi
- POWHATAN 4 MINEUnderground Storage Tanks · 2.1 mi
- WESTLAKE NATRIUM LLC, WESTLAKE NATRIUMToxics Release Inventory · 2.4 mi
- WESTLAKE NATRIUM LLC, WESTLAKE NATRIUMBrownfields · 2.4 mi
- COLUMBIAN CHEMICALS COMPANYToxics Release Inventory · 2.5 mi
- PBS CHEMICALSUnderground Storage Tanks · 2.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Clarington'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 Clarington.
Sources Checked
within ~10 miles of Clarington
Severity Distribution
within ~10 miles of Clarington
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Clarington, two things run higher than the national average within ~10 miles of Clarington — Superfund (4 sites) and Toxics Release Inventory (18 sites). That's not a problem with your land — it's information about it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Clarington
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 Clarington average
Your land is one point inside Clarington
Everything above resolves to Clarington as a whole — one PHZM band and one 28°F frost record, read across 732 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 Clarington Average
Clarington Average
- ●USDA Zones 6b, averaged across Clarington
- ●One soil character for all of Clarington
- ●Frost dates read at Clarington's scale: Apr 10 to Nov 4
YOUR Parcel
- ✓Your exact zone, not Clarington's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Clarington
Pull a site-specific report for your exact address in Clarington, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Clarington averages can't show:
We read public map data around Clarington — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Clarington average
How we know this about Clarington
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 Clarington’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 Clarington
When does frost risk typically end in Clarington?
The last hard freeze (28°F) in Clarington typically lands around Apr 10, 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 1.
When is the first frost in Clarington?
The first hard freeze (28°F) in Clarington typically arrives around Nov 4, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 21, so the watching starts about Oct 5 — about 208 days after the spring freeze cleared.
How long is the growing season in Clarington?
Measured between 28°F hard freezes, Clarington sees about 208 frost-free days — roughly Apr 10 through Nov 4, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 1 to Oct 21, about 173 days.
Is the soil safe to grow vegetables in Clarington?
The federal record around Clarington is a meaningful one — 177 documented sites, mostly Underground Storage Tanks entries (84), the nearest Underground Storage Tanks record about 1.1 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 Clarington?
From about Oct 5 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 4 (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 4. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Clarington's scale — its 6b band and its 208-day season. Your yard writes its own version of Clarington'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 Clarington’s own scale
7 of the readings below were taken at Clarington's own scale — its own ~208-day season between 28°F freezes, the 732 acres it covers and 177 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Clarington's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Clarington's own 28°F hard-freeze dates, about Apr 10 and Nov 4 and the ~208-day span between themNOAA 1991–2020 Climate Normals
- 177 documented contamination sites on the federal record near Clarington, the closest Underground Storage Tanks record about 1.1 miles out from the town centreFederal environmental registers
- Clarington's boundary and the 732 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~208-day seasonGrowable Ground crop-matching engine
- The ecoregion at Clarington's own centroid, the Western Allegheny PlateauUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Claringtonlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Clarington's 732 acres read through its county's SSURGO summaryfrom Monroe County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Monroe 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 Monroe County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Clarington's 732 acreswhy one lot differs from the next →
- Which side of Clarington you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 732 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 1.1 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 Clarington-wide figureread your own land →