Hartville, 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.
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 Hartville, 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 Hartville 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 Hartville — soil, climate, flood, and parcel records. How we handle your address.
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Hartville — the short answer
Hartville, Ohio: USDA zone 6b, about 213 days between hard freezes, across 2K 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 9
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~213
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K 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 Hartville's average, not your lot's — a low corner or a tree line moves it. Against Hartville's 213-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Hartville
Each reading below is measured for Hartville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredHartville runs about 213 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
MeasuredHartville 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 Hartville is in
Hartville sits in the Erie Drift Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Hartville's own centroid rather than borrowed from Stark County.
What Grows in Hartville
Every plant below cleared Hartville's own zone 6b and its 213-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in Hartville?
Rarely: the season closes in stages, not all at once, and each stage has its crops. 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 9 — 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 Hartville
Spotted lanternfly documented 15 miles from Hartville, first recorded 2023. What to watch for.
What's on the federal record near Hartville
Closest first, within ~10 miles of Hartville. Listing isn't leaking, and distance isn't exposure.
- TELEDYNE MONARCH RUBBER PLANTUnderground Storage Tanks · 350 ft
- NORTH AMERICAN MOLDED PRODUCTSToxics Release Inventory · 500 ft
- PASTORES DRY CLEANERS & COIN LAUNDRYBrownfields · 1000 ft
- CLASSIC COACHBrownfields · 1200 ft
- BP OIL SERVICE STATION 5953 *Brownfields · 1300 ft
- ORPHAN TANKUnderground Storage Tanks · 1400 ft
- HUPPS SPIRITUnderground Storage Tanks · 1400 ft
- MOHLER SUPER SERVICEUnderground Storage Tanks · 1600 ft
- HARTVILLE ELEVATOR COMPANY, INC.Underground Storage Tanks · 1600 ft
- MICHAEL'S AUTO SALESUnderground Storage Tanks · 1700 ft
- J F DESIGNSBrownfields · 1800 ft
- JAMES R. BAIRUnderground Storage Tanks · 1900 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Hartville'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 Hartville.
Sources Checked
within ~10 miles of Hartville
Severity Distribution
within ~10 miles of Hartville
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Hartville, Toxics Release Inventory runs higher than the national average — 83 sites within ~10 miles of Hartville. 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.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Hartville
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 Hartville average
Your land is one point inside Hartville
Everything above resolves to Hartville as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Hartville Average
Hartville Average
- ●USDA Zones 6b, averaged across Hartville
- ●One soil character for all of Hartville
- ●Frost dates read at Hartville's scale: Apr 10 to Nov 9
YOUR Parcel
- ✓Your exact zone, not Hartville's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Hartville
Pull a site-specific report for your exact address in Hartville, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Hartville averages can't show:
We read public map data around Hartville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Hartville average
How we know this about Hartville
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 Hartville’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 Hartville
When does frost risk typically end in Hartville?
The last hard freeze (28°F) in Hartville 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 Hartville?
The first hard freeze (28°F) in Hartville typically arrives around Nov 9, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 26, so the watching starts about Oct 10 — about 213 days after the spring freeze cleared.
How long is the growing season in Hartville?
Measured between 28°F hard freezes, Hartville sees about 213 frost-free days — roughly Apr 10 through Nov 9, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 1 to Oct 26, about 178 days.
Is the soil safe to grow vegetables in Hartville?
The federal record around Hartville is a meaningful one — 1,011 documented sites, mostly Underground Storage Tanks entries (498), the nearest Underground Storage Tanks record under a tenth of a mile 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 Hartville?
From about Oct 10 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 9 (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 9. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Hartville's scale — its 6b band and its 213-day season. Your yard writes its own version of Hartville'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 Hartville’s own scale
7 of the readings below were taken at Hartville's own scale — its own ~213-day season between 28°F freezes, the 1,727 acres it covers and 1,011 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Hartville's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Hartville's own 28°F hard-freeze dates, about Apr 10 and Nov 9 and the ~213-day span between themNOAA 1991–2020 Climate Normals
- 1,011 documented contamination sites on the federal record near Hartville, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Hartville's boundary and the 1,727 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~213-day seasonGrowable Ground crop-matching engine
- The ecoregion at Hartville's own centroid, the Erie Drift PlainUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Hartvillelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Hartville's 1,727 acres read through its county's SSURGO summaryfrom Stark County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Stark 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 Stark County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Hartville's 1,727 acreswhy one lot differs from the next →
- Which side of Hartville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,727 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Hartville-wide figureread your own land →
More in Ohio
Wider growing context
What grows across OhioHartville sits outside our named growing regions, so Ohio as a whole is its closest context here.
Nearby growing guides