Crown City, Ohio, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include cabbage, hazelnut, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Crown City, 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 Crown City 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 Crown City — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Crown City — the short answer
Crown City, Ohio: USDA zone 7a, about 226 days between hard freezes, across 743 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 29
- 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
- ~226
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 743 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 7a is Crown City's average, not your lot's — a low corner or a tree line moves it. Against Crown City's 226-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Crown City
Each reading below is measured for Crown City itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredCrown City runs about 226 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
MeasuredCrown City sits in USDA hardiness zone 7a.
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 Crown City is in
Crown City sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Crown City's own centroid rather than borrowed from Gallia County.
What Grows in Crown City
Every plant below cleared Crown City's own zone 7a and its 226-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in Crown City?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 29 (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. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around Crown City
Survey cells within 31 miles of Crown City checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 100 miles off. What to watch for.
What's on the federal record near Crown City
Closest first, within ~10 miles of Crown City. Listing isn't leaking, and distance isn't exposure.
- FOOD SHOP CROWN CITYUnderground Storage Tanks · 2100 ft
- OHIO DEPT. OF TRANSPORTATIONUnderground Storage Tanks · 2100 ft
- DAIRY BOYUnderground Storage Tanks · 2300 ft
- DOLLAR GENERAL STORE #10423Brownfields · 0.6 mi
- TERRY HAGER'S AUTO SHOPBrownfields · 0.7 mi
- ALCON RESEARCH, LTD.Toxics Release Inventory · 1.3 mi
- ALCON RESEARCH, LTD.Brownfields · 1.3 mi
- ALCON RESEARCH, LTD., LESAGEToxics Release Inventory · 1.4 mi
- HANNAN TRACE ELEMENTARYUnderground Storage Tanks · 2.1 mi
- MERCERVILLE CONVENIENCEUnderground Storage Tanks · 2.1 mi
- UNITED GROCERYUnderground Storage Tanks · 2.3 mi
- ZINSSER & CO INC NEW PARKS DIVToxics Release Inventory · 2.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Crown City'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 Crown City.
Total Sites
91
within ~10 miles of Crown City
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Crown City
Severity Distribution
within ~10 miles of Crown City
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Crown City, two things run higher than the national average within ~10 miles of Crown City — Superfund (3 sites) and Toxics Release Inventory (7 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around 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 Crown City
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 Crown City average
Your land is one point inside Crown City
Everything above resolves to Crown City as a whole — one PHZM band and one 28°F frost record, read across 743 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 Crown City Average
Crown City Average
- ●USDA Zones 7a, averaged across Crown City
- ●One soil character for all of Crown City
- ●Frost dates read at Crown City's scale: Mar 29 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Crown City's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Crown City
Pull a site-specific report for your exact address in Crown City, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Crown City averages can't show:
We read public map data around Crown City — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Crown City average
How we know this about Crown City
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 Crown City’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 Crown City
When does frost risk typically end in Crown City?
The last hard freeze (28°F) in Crown City typically lands around Mar 29, 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 19.
When is the first frost in Crown City?
The first hard freeze (28°F) in Crown City 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 226 days after the spring freeze cleared.
How long is the growing season in Crown City?
Measured between 28°F hard freezes, Crown City sees about 226 frost-free days — roughly Mar 29 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 19 to Oct 27, about 191 days.
Is the soil safe to grow vegetables in Crown City?
The federal record around Crown City is a meaningful one — 91 documented sites, mostly Underground Storage Tanks entries (43), the nearest Underground Storage Tanks record about 0.4 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 Crown City?
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 Crown City's scale — its 7a band and its 226-day season. Your yard writes its own version of Crown City'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 Crown City’s own scale
7 of the readings below were taken at Crown City's own scale — its own ~226-day season between 28°F freezes, the 743 acres it covers and 91 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Crown City's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Crown City's own 28°F hard-freeze dates, about Mar 29 and Nov 10 and the ~226-day span between themNOAA 1991–2020 Climate Normals
- 91 documented contamination sites on the federal record near Crown City, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Crown City's boundary and the 743 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~226-day seasonGrowable Ground crop-matching engine
- The ecoregion at Crown City's own centroid, the Western Allegheny PlateauUS EPA Level III Ecoregions
- Lanternfly survey cells around Crown City 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 Crown City's 743 acres read through its county's SSURGO summaryfrom Gallia County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Gallia 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 Gallia County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Crown City's 743 acreswhy one lot differs from the next →
- Which side of Crown City you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 743 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Crown City-wide figureread your own land →