Williamsdale, Ohio, sits in USDA hardiness zone 6b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include cabbage, hazelnut, lavender, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Williamsdale, 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 Williamsdale 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 Williamsdale — soil, climate, flood, and parcel records. How we handle your address.
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Williamsdale — the short answer
Williamsdale, Ohio: USDA zone 6b, about 213 days between hard freezes, across 111 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 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~213
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 111 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 Williamsdale's average, not your lot's — a low corner or a tree line moves it. Against Williamsdale's 213-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Williamsdale
Each reading below is measured for Williamsdale itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWilliamsdale 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
MeasuredWilliamsdale 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 Williamsdale is in
Williamsdale sits in the Eastern Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Williamsdale's own centroid rather than borrowed from Butler County.
What Grows in Williamsdale
Every plant below cleared Williamsdale'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 Williamsdale?
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 1 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around Williamsdale
Spotted lanternfly documented 18 miles from Williamsdale, first recorded 2023. What to watch for.
What's on the federal record near Williamsdale
Closest first, within ~10 miles of Williamsdale. Listing isn't leaking, and distance isn't exposure.
- WAGERS AUTO BODYBrownfields · 1100 ft
- THORNTONS INC. #75Underground Storage Tanks · 1200 ft
- NEW MIAMI QUIK STOPUnderground Storage Tanks · 1700 ft
- NEW MIAMI POLICE DEPARTMENTUnderground Storage Tanks · 0.6 mi
- DON S. CISLE CONTRACTORS, INC.Underground Storage Tanks · 0.7 mi
- HELTON'S MARKETUnderground Storage Tanks · 0.7 mi
- NEW MIAMI STREET DEPARTMENTUnderground Storage Tanks · 0.7 mi
- AK STEEL CORP HAMILTON PLANTSuperfund · 0.8 mi
- AK STEEL CORP HAMILTON PLANTToxics Release Inventory · 0.8 mi
- FAMILY DOLLAR #9321Brownfields · 1.0 mi
- ST CLAIR TOWNSHIPUnderground Storage Tanks · 1.0 mi
- OVERPECK TRUCKING CO., INC.Underground Storage Tanks · 1.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Williamsdale'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 Williamsdale.
Sources Checked
within ~10 miles of Williamsdale
Severity Distribution
within ~10 miles of Williamsdale
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Williamsdale, Toxics Release Inventory runs higher than the national average — 122 sites within ~10 miles of Williamsdale. 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 Williamsdale
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 Williamsdale average
Your land is one point inside Williamsdale
Everything above resolves to Williamsdale as a whole — one PHZM band and one 28°F frost record, read across 111 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 Williamsdale Average
Williamsdale Average
- ●USDA Zones 6b, averaged across Williamsdale
- ●One soil character for all of Williamsdale
- ●Frost dates read at Williamsdale's scale: Apr 2 to Nov 1
YOUR Parcel
- ✓Your exact zone, not Williamsdale's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Williamsdale
Pull a site-specific report for your exact address in Williamsdale, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Williamsdale averages can't show:
We read public map data around Williamsdale — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Williamsdale average
How we know this about Williamsdale
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 Williamsdale’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 Williamsdale
When does frost risk typically end in Williamsdale?
The last hard freeze (28°F) in Williamsdale 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 Williamsdale?
The first hard freeze (28°F) in Williamsdale typically arrives around Nov 1, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 18, so the watching starts about Oct 2 — about 213 days after the spring freeze cleared.
How long is the growing season in Williamsdale?
Measured between 28°F hard freezes, Williamsdale sees about 213 frost-free days — roughly Apr 2 through Nov 1, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 23 to Oct 18, about 178 days.
Is the soil safe to grow vegetables in Williamsdale?
The federal record around Williamsdale is a meaningful one — 1,102 documented sites, mostly Underground Storage Tanks entries (492), the nearest Brownfields record about 0.2 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 Williamsdale?
From about Oct 2 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 1 (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 1. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Williamsdale's scale — its 6b band and its 213-day season. Your yard writes its own version of Williamsdale'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 Williamsdale’s own scale
7 of the readings below were taken at Williamsdale's own scale — its own ~213-day season between 28°F freezes, the 111 acres it covers and 1,102 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Williamsdale's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Williamsdale's own 28°F hard-freeze dates, about Apr 2 and Nov 1 and the ~213-day span between themNOAA 1991–2020 Climate Normals
- 1,102 documented contamination sites on the federal record near Williamsdale, the closest Brownfields record about 0.2 miles out from the town centreFederal environmental registers
- Williamsdale's boundary and the 111 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 Williamsdale's own centroid, the Eastern Corn Belt PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Williamsdalelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Williamsdale's 111 acres read through its county's SSURGO summaryfrom Butler County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Butler 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 Butler County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Williamsdale's 111 acreswhy one lot differs from the next →
- Which side of Williamsdale you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 111 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Williamsdale-wide figureread your own land →
More in Ohio
Wider growing context
What grows across OhioWilliamsdale sits outside our named growing regions, so Ohio as a whole is its closest context here.
Nearby growing guides