Wightmans Grove, 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.
These conditions suit cabbage, hazelnut, lavender, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Wightmans Grove, 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 Wightmans Grove 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 Wightmans Grove — soil, climate, flood, and parcel records. How we handle your address.
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Wightmans Grove — the short answer
Wightmans Grove, Ohio: USDA zone 6b, about 222 days between hard freezes, across 90 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 2
- 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
- ~222
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 90 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 Wightmans Grove's average, not your lot's — a low corner or a tree line moves it. Against Wightmans Grove's 222-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Wightmans Grove
Each reading below is measured for Wightmans Grove itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWightmans Grove runs about 222 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
MeasuredWightmans Grove 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 Wightmans Grove is in
Wightmans Grove sits in the Huron/Erie Lake Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Wightmans Grove's own centroid rather than borrowed from Sandusky County.
What Grows in Wightmans Grove
Every plant below cleared Wightmans Grove's own zone 6b and its 222-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in Wightmans Grove?
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 5; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 2 (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. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Wightmans Grove
Spotted lanternfly documented 18 miles from Wightmans Grove, first recorded 2023. What to watch for.
What's on the federal record near Wightmans Grove
Closest first, within ~10 miles of Wightmans Grove. Listing isn't leaking, and distance isn't exposure.
- S-18 NWOH-TEST LAMALIE NR WIGHTMANS GROVENitrate · 1.1 mi
- MANNY POOLS LLCBrownfields · 1.5 mi
- RIVERFRONT MARINA & CAMPGROUNDSUnderground Storage Tanks · 2.1 mi
- BERLEKAMP PLASTICS INCBrownfields · 2.3 mi
- 081 Countyline SunocoUnderground Storage Tanks · 2.3 mi
- S-234-RL16 PEARSON NR WIGHTMANS GROVE OHNitrate · 2.4 mi
- S-105-RL18 OVERMYER NE OF FREMONT OHNitrate · 2.8 mi
- THE OUTPOSTUnderground Storage Tanks · 3.1 mi
- S-102-R35 THRUN W OF WIGHTMANS GROVE OHNitrate · 3.2 mi
- BP #137Underground Storage Tanks · 3.6 mi
- LAND BANKUnderground Storage Tanks · 3.8 mi
- COLUMBIA GAS TRANSMISSION- SOUTH MUDDY CREEK COMPRESSOR STATIONBrownfields · 3.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Wightmans Grove'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 Wightmans Grove.
Total Sites
413
within ~10 miles of Wightmans Grove
Risk Level
Elevated
Highest-severity
7 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Wightmans Grove
Severity Distribution
within ~10 miles of Wightmans Grove
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Wightmans Grove, two things run higher than the national average within ~10 miles of Wightmans Grove — PFAS (5 sites) and Superfund (7 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Wightmans Grove
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 Wightmans Grove average
Your land is one point inside Wightmans Grove
Everything above resolves to Wightmans Grove as a whole — one PHZM band and one 28°F frost record, read across 90 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 Wightmans Grove Average
Wightmans Grove Average
- ●USDA Zones 6b, averaged across Wightmans Grove
- ●One soil character for all of Wightmans Grove
- ●Frost dates read at Wightmans Grove's scale: Apr 2 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Wightmans Grove's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Wightmans Grove
Pull a site-specific report for your exact address in Wightmans Grove, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Wightmans Grove averages can't show:
We read public map data around Wightmans Grove — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Wightmans Grove average
How we know this about Wightmans Grove
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 Wightmans Grove’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 Wightmans Grove
When does frost risk typically end in Wightmans Grove?
The last hard freeze (28°F) in Wightmans Grove typically lands around Apr 2, 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 23.
When is the first frost in Wightmans Grove?
The first hard freeze (28°F) in Wightmans Grove 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 222 days after the spring freeze cleared.
How long is the growing season in Wightmans Grove?
Measured between 28°F hard freezes, Wightmans Grove sees about 222 frost-free days — roughly Apr 2 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 23 to Oct 27, about 187 days.
Is the soil safe to grow vegetables in Wightmans Grove?
The federal record around Wightmans Grove is a meaningful one — 413 documented sites, mostly Underground Storage Tanks entries (171), the nearest Nitrate 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 Wightmans Grove?
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 Wightmans Grove's scale — its 6b band and its 222-day season. Your yard writes its own version of Wightmans Grove'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 Wightmans Grove’s own scale
7 of the readings below were taken at Wightmans Grove's own scale — its own ~222-day season between 28°F freezes, the 90 acres it covers and 413 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Wightmans Grove's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Wightmans Grove's own 28°F hard-freeze dates, about Apr 2 and Nov 10 and the ~222-day span between themNOAA 1991–2020 Climate Normals
- 413 documented contamination sites on the federal record near Wightmans Grove, the closest Nitrate record about 1.1 miles out from the town centreFederal environmental registers
- Wightmans Grove's boundary and the 90 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~222-day seasonGrowable Ground crop-matching engine
- The ecoregion at Wightmans Grove's own centroid, the Huron/Erie Lake PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Wightmans Grovelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Wightmans Grove's 90 acres read through its county's SSURGO summaryfrom Sandusky County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Sandusky 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 Sandusky County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Wightmans Grove's 90 acreswhy one lot differs from the next →
- Which side of Wightmans Grove you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 90 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Wightmans Grove-wide figureread your own land →
More in Ohio
Wider growing context
What grows across OhioWightmans Grove sits outside our named growing regions, so Ohio as a whole is its closest context here.
Nearby growing guides