South Webster, Ohio, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
The conditions favor cabbage, hazelnut, california poppy, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in South Webster, 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 South Webster 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 South Webster — soil, climate, flood, and parcel records. How we handle your address.
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South Webster — the short answer
South Webster, Ohio: USDA zone 7a, about 210 days between hard freezes, across 840 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 5
- 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
- ~210
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 840 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 South Webster's average, not your lot's — a low corner or a tree line moves it. Against South Webster's 210-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in South Webster
Each reading below is measured for South Webster itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSouth Webster runs about 210 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
MeasuredSouth Webster 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 South Webster is in
South Webster sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at South Webster's own centroid rather than borrowed from Scioto County.
What Grows in South Webster
Every plant below cleared South Webster's own zone 7a and its 210-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in South Webster?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Mar 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 5 (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. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around South Webster
Survey cells within 31 miles of South Webster checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 77 miles off. What to watch for.
What's on the federal record near South Webster
Closest first, within ~10 miles of South Webster. Listing isn't leaking, and distance isn't exposure.
- JEEP FUELUnderground Storage Tanks · 950 ft
- BLOOM ELEMENTRY SCHOOLUnderground Storage Tanks · 1100 ft
- COUNTRY STORE FOODSUnderground Storage Tanks · 1600 ft
- VESUVIUS USA SW PLANT *Toxics Release Inventory · 2100 ft
- HANES CHEVROLET COMPANYUnderground Storage Tanks · 2200 ft
- TETLP - MP 576.72 SCIOTO COBrownfields · 2300 ft
- FORMER GENERAL STOREUnderground Storage Tanks · 1.2 mi
- GTE NORTH, INC.Underground Storage Tanks · 1.3 mi
- TETLP - M&R 73730 WHEELERSBURGBrownfields · 1.5 mi
- VERNON ELEMENTRY SCHOOLUnderground Storage Tanks · 5.4 mi
- LOGAN OHIO HOLDING COMPANY LLCUnderground Storage Tanks · 5.5 mi
- VERNON TOWNSHIP GARAGEBrownfields · 5.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from South Webster'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 South Webster.
Total Sites
97
within ~10 miles of South Webster
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of South Webster
Severity Distribution
within ~10 miles of South Webster
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around South Webster, PFAS runs higher than the national average — 4 sites within ~10 miles of South Webster. 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.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in South Webster
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 South Webster average
Your land is one point inside South Webster
Everything above resolves to South Webster as a whole — one PHZM band and one 28°F frost record, read across 840 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 South Webster Average
South Webster Average
- ●USDA Zones 7a, averaged across South Webster
- ●One soil character for all of South Webster
- ●Frost dates read at South Webster's scale: Apr 5 to Nov 1
YOUR Parcel
- ✓Your exact zone, not South Webster's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in South Webster
Pull a site-specific report for your exact address in South Webster, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that South Webster averages can't show:
We read public map data around South Webster — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the South Webster average
How we know this about South Webster
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 South Webster’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 South Webster
When does frost risk typically end in South Webster?
The last hard freeze (28°F) in South Webster typically lands around Apr 5, 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 26.
When is the first frost in South Webster?
The first hard freeze (28°F) in South Webster 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 210 days after the spring freeze cleared.
How long is the growing season in South Webster?
Measured between 28°F hard freezes, South Webster sees about 210 frost-free days — roughly Apr 5 through Nov 1, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 26 to Oct 18, about 175 days.
Is the soil safe to grow vegetables in South Webster?
The federal record around South Webster is a meaningful one — 97 documented sites, mostly Underground Storage Tanks entries (55), the nearest Underground Storage Tanks 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 South Webster?
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 South Webster's scale — its 7a band and its 210-day season. Your yard writes its own version of South Webster'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 South Webster’s own scale
7 of the readings below were taken at South Webster's own scale — its own ~210-day season between 28°F freezes, the 840 acres it covers and 97 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- South Webster's own USDA hardiness band, zones 7aUSDA PHZM 2023
- South Webster's own 28°F hard-freeze dates, about Apr 5 and Nov 1 and the ~210-day span between themNOAA 1991–2020 Climate Normals
- 97 documented contamination sites on the federal record near South Webster, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- South Webster's boundary and the 840 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~210-day seasonGrowable Ground crop-matching engine
- The ecoregion at South Webster's own centroid, the Western Allegheny PlateauUS EPA Level III Ecoregions
- Lanternfly survey cells around South Webster 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 South Webster's 840 acres read through its county's SSURGO summaryfrom Scioto County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Scioto 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 Scioto County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among South Webster's 840 acreswhy one lot differs from the next →
- Which side of South Webster you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 840 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 South Webster-wide figureread your own land →