New Philadelphia, Ohio, sits in USDA hardiness zone 6b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
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 New Philadelphia, 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 New Philadelphia 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 New Philadelphia — soil, climate, flood, and parcel records. How we handle your address.
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New Philadelphia — the short answer
New Philadelphia, Ohio: USDA zone 6b, about 199 days between hard freezes, across 5K acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 31
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~199
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 5K 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 New Philadelphia's average, not your lot's — a low corner or a tree line moves it. Against New Philadelphia's 199-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in New Philadelphia
Each reading below is measured for New Philadelphia itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredNew Philadelphia runs about 199 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
MeasuredNew Philadelphia 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 New Philadelphia is in
New Philadelphia sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at New Philadelphia's own centroid rather than borrowed from Tuscarawas County.
What Grows in New Philadelphia
Every plant below cleared New Philadelphia's own zone 6b and its 199-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in New Philadelphia?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 18; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 31 — 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 New Philadelphia
Survey cells within 31 miles of New Philadelphia checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 34 miles off. What to watch for.
What's on the federal record near New Philadelphia
Closest first, within ~10 miles of New Philadelphia. Listing isn't leaking, and distance isn't exposure.
- EAST HIGH SHELLUnderground Storage Tanks · 650 ft
- MARTY''S COACHES CORNER INCUnderground Storage Tanks · 800 ft
- CATOLA'S DRY CLEANERS INCBrownfields · 950 ft
- NEW PHILADELPHIA POLICE DEPTUnderground Storage Tanks · 1400 ft
- TUSCARAWAS COUNTY SHERIFF'S DEPTUnderground Storage Tanks · 1700 ft
- NEW PHILADELPHIA SERV CNTRBrownfields · 1700 ft
- HICKS REALTY INC.Underground Storage Tanks · 1700 ft
- SHELLUnderground Storage Tanks · 1700 ft
- ABANDONED GAS STATIONUnderground Storage Tanks · 1800 ft
- HYDRAULIC PARTS STOREUnderground Storage Tanks · 1800 ft
- OHIO POWER CO.Underground Storage Tanks · 1900 ft
- HOWDEN BUFFALOUnderground Storage Tanks · 2000 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from New Philadelphia'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 New Philadelphia.
Sources Checked
within ~10 miles of New Philadelphia
Severity Distribution
within ~10 miles of New Philadelphia
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around New Philadelphia, two things run higher than the national average within ~10 miles of New Philadelphia — Toxics Release Inventory (44 sites) and Superfund (7 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in New Philadelphia
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 New Philadelphia average
Your land is one point inside New Philadelphia
Everything above resolves to New Philadelphia as a whole — one PHZM band and one 28°F frost record, read across 5K 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 city 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 New Philadelphia Average
New Philadelphia Average
- ●USDA Zones 6b, averaged across New Philadelphia
- ●One soil character for all of New Philadelphia
- ●Frost dates read at New Philadelphia's scale: Apr 15 to Oct 31
YOUR Parcel
- ✓Your exact zone, not New Philadelphia's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in New Philadelphia
Pull a site-specific report for your exact address in New Philadelphia, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that New Philadelphia averages can't show:
We read public map data around New Philadelphia — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the New Philadelphia average
How we know this about New Philadelphia
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at New Philadelphia’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 city grain anywhere on this page — there is no city-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 New Philadelphia
When does frost risk typically end in New Philadelphia?
The last hard freeze (28°F) in New Philadelphia typically lands around Apr 15, 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 6.
When is the first frost in New Philadelphia?
The first hard freeze (28°F) in New Philadelphia typically arrives around Oct 31, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 17, so the watching starts about Oct 1 — about 199 days after the spring freeze cleared.
How long is the growing season in New Philadelphia?
Measured between 28°F hard freezes, New Philadelphia sees about 199 frost-free days — roughly Apr 15 through Oct 31, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 6 to Oct 17, about 164 days.
Is the soil safe to grow vegetables in New Philadelphia?
The federal record around New Philadelphia runs heavier than most — 491 documented sites, mostly Underground Storage Tanks entries (234), the nearest Underground Storage Tanks record about 0.1 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in New Philadelphia?
From about Oct 1 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 31 (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 31. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at New Philadelphia's scale — its 6b band and its 199-day season. Your yard writes its own version of New Philadelphia'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 New Philadelphia’s own scale
7 of the readings below were taken at New Philadelphia's own scale — its own ~199-day season between 28°F freezes, the 5,218 acres it covers and 491 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- New Philadelphia's own USDA hardiness band, zones 6bUSDA PHZM 2023
- New Philadelphia's own 28°F hard-freeze dates, about Apr 15 and Oct 31 and the ~199-day span between themNOAA 1991–2020 Climate Normals
- 491 documented contamination sites on the federal record near New Philadelphia, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- New Philadelphia's boundary and the 5,218 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~199-day seasonGrowable Ground crop-matching engine
- The ecoregion at New Philadelphia's own centroid, the Western Allegheny PlateauUS EPA Level III Ecoregions
- Lanternfly survey cells around New Philadelphia 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 New Philadelphia's 5,218 acres read through its county's SSURGO summaryfrom Tuscarawas County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Tuscarawas 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 Tuscarawas County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among New Philadelphia's 5,218 acreswhy one lot differs from the next →
- Which side of New Philadelphia you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,218 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.1 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 New Philadelphia-wide figureread your own land →
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