Fredericktown, Ohio, sits in USDA hardiness zone 6a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
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 Fredericktown, 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 Fredericktown 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 Fredericktown — soil, climate, flood, and parcel records. How we handle your address.
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Fredericktown — the short answer
Fredericktown, Ohio: USDA zone 6a, about 188 days between hard freezes, across 1K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~188
- 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 Fredericktown's average, not your lot's — a low corner or a tree line moves it. Against Fredericktown's 188-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Fredericktown
Each reading below is measured for Fredericktown itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredFredericktown runs about 188 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
MeasuredFredericktown 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 Fredericktown is in
Fredericktown sits in the Erie Drift Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Fredericktown's own centroid rather than borrowed from Knox County.
What Grows in Fredericktown
Every plant below cleared Fredericktown's own zone 6a and its 188-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in Fredericktown?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 21; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 18 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 23 — 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 Fredericktown
Survey cells within 31 miles of Fredericktown checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 39 miles off. What to watch for.
What's on the federal record near Fredericktown
Closest first, within ~10 miles of Fredericktown. Listing isn't leaking, and distance isn't exposure.
- FREDRICKTOWN BELLSTORESUnderground Storage Tanks · 1100 ft
- BP OIL SITE 05163Brownfields · 1700 ft
- FAST FREDDIESUnderground Storage Tanks · 1700 ft
- K-12 PAS-01Nitrate · 2000 ft
- BP OIL CO. #05163Underground Storage Tanks · 2100 ft
- DOLLAR GENERAL STORE #5894Brownfields · 2100 ft
- THE J.B. FOOTE FOUNDRY CO INC.Underground Storage Tanks · 2300 ft
- DANA CORPORATIONBrownfields · 0.7 mi
- INDUSTRIAL AND MARINE ENGINE SERVICE COMPANYBrownfields · 0.7 mi
- S & S AGGERGATEUnderground Storage Tanks · 0.7 mi
- MIKE'S MARATHONBrownfields · 0.8 mi
- FREDERICKTOWN WWTPUnderground Storage Tanks · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Fredericktown'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 Fredericktown.
Total Sites
189
within ~10 miles of Fredericktown
Risk Level
Moderate
Highest-severity
11 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Fredericktown
Severity Distribution
within ~10 miles of Fredericktown
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •TRI facilities report what they release. Check the wind — downwind beds catch more of it.
Check your specific parcel in Fredericktown
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 Fredericktown average
Your land is one point inside Fredericktown
Everything above resolves to Fredericktown 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 Fredericktown Average
Fredericktown Average
- ●USDA Zones 6a, averaged across Fredericktown
- ●One soil character for all of Fredericktown
- ●Frost dates read at Fredericktown's scale: Apr 18 to Oct 23
YOUR Parcel
- ✓Your exact zone, not Fredericktown's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Fredericktown
Pull a site-specific report for your exact address in Fredericktown, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Fredericktown averages can't show:
We read public map data around Fredericktown — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Fredericktown average
How we know this about Fredericktown
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 Fredericktown’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 Fredericktown
When does frost risk typically end in Fredericktown?
The last hard freeze (28°F) in Fredericktown typically lands around Apr 18, 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 9.
When is the first frost in Fredericktown?
The first hard freeze (28°F) in Fredericktown typically arrives around Oct 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 9, so the watching starts about Sep 23 — about 188 days after the spring freeze cleared.
How long is the growing season in Fredericktown?
Measured between 28°F hard freezes, Fredericktown sees about 188 frost-free days — roughly Apr 18 through Oct 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 9 to Oct 9, about 153 days.
Is the soil safe to grow vegetables in Fredericktown?
The federal record around Fredericktown shows 189 documented sites, mostly Underground Storage Tanks entries (114), the nearest Underground Storage Tanks record about 0.2 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Fredericktown?
From about Sep 23 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 23 (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 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Fredericktown's scale — its 6a band and its 188-day season. Your yard writes its own version of Fredericktown'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 Fredericktown’s own scale
7 of the readings below were taken at Fredericktown's own scale — its own ~188-day season between 28°F freezes, the 1,270 acres it covers and 189 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Fredericktown's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Fredericktown's own 28°F hard-freeze dates, about Apr 18 and Oct 23 and the ~188-day span between themNOAA 1991–2020 Climate Normals
- 189 documented contamination sites on the federal record near Fredericktown, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Fredericktown's boundary and the 1,270 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~188-day seasonGrowable Ground crop-matching engine
- The ecoregion at Fredericktown's own centroid, the Erie Drift PlainUS EPA Level III Ecoregions
- Lanternfly survey cells around Fredericktown checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Fredericktown's 1,270 acres read through its county's SSURGO summaryfrom Knox County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Knox 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 Knox County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Fredericktown's 1,270 acreswhy one lot differs from the next →
- Which side of Fredericktown you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,270 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Fredericktown-wide figureread your own land →
More in Ohio
Wider growing context
What grows across OhioFredericktown sits outside our named growing regions, so Ohio as a whole is its closest context here.
Nearby growing guides