Tonawanda, New York, 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.
On paper, cabbage, hazelnut, lavender, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Tonawanda, 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 Tonawanda 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 Tonawanda — soil, climate, flood, and parcel records. How we handle your address.
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Tonawanda — the short answer
Tonawanda, New York: USDA zone 6b, about 212 days between hard freezes, across 2K acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 13
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 11
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~212
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 2K 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 Tonawanda's average, not your lot's — a low corner or a tree line moves it. Against Tonawanda's 212-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Tonawanda
Each reading below is measured for Tonawanda itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredTonawanda runs about 212 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
MeasuredTonawanda 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 Tonawanda is in
Tonawanda sits in the Eastern Great Lakes Lowlands — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Tonawanda's own centroid rather than borrowed from Erie County.
What Grows in Tonawanda
Every plant below cleared Tonawanda's own zone 6b and its 212-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Tonawanda?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 16; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 13 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 11 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
Documented around Tonawanda
Spotted lanternfly documented 9 miles from Tonawanda, first recorded 2022. What to watch for.
What's on the federal record near Tonawanda
Closest first, within ~10 miles of Tonawanda. Listing isn't leaking, and distance isn't exposure.
- TONAWANDA JR HIGH SCHOOLUnderground Storage Tanks · 700 ft
- TONAWANDA CHLORINE SPILLSuperfund · 750 ft
- GARY GALLAGHER SERVICEUnderground Storage Tanks · 1100 ft
- CULLIGAN WATER CONDITIONINGUnderground Storage Tanks · 1200 ft
- BOYS CLUB OF THE TONAWANDAS INCUnderground Storage Tanks · 1500 ft
- ROBINSON & LONG INCUnderground Storage Tanks · 1500 ft
- WEBERS SERVICE STATION INCUnderground Storage Tanks · 1700 ft
- SCOTT ALLEN 7 DANIEL GLUSHEFSKIUnderground Storage Tanks · 1800 ft
- CENTRAL ELEMENTARY SCHOOLUnderground Storage Tanks · 1900 ft
- SPAULDING COMPOSITES CO., INC.Underground Storage Tanks · 1900 ft
- STAFFEN GARAGEUnderground Storage Tanks · 2000 ft
- SPAULDING COMPOSITES COUnderground Storage Tanks · 2000 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Tonawanda'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 Tonawanda.
Sources Checked
within ~10 miles of Tonawanda
Severity Distribution
within ~10 miles of Tonawanda
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Tonawanda, two things run higher than the national average within ~10 miles of Tonawanda — Superfund (65 sites) and Toxics Release Inventory (195 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 Tonawanda
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 Tonawanda average
Your land is one point inside Tonawanda
Everything above resolves to Tonawanda as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Tonawanda Average
Tonawanda Average
- ●USDA Zones 6b, averaged across Tonawanda
- ●One soil character for all of Tonawanda
- ●Frost dates read at Tonawanda's scale: Apr 13 to Nov 11
YOUR Parcel
- ✓Your exact zone, not Tonawanda's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Tonawanda
Pull a site-specific report for your exact address in Tonawanda, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Tonawanda averages can't show:
We read public map data around Tonawanda — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Tonawanda average
How we know this about Tonawanda
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 Tonawanda’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 Tonawanda
When does frost risk typically end in Tonawanda?
The last hard freeze (28°F) in Tonawanda typically lands around Apr 13, 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 4.
When is the first frost in Tonawanda?
The first hard freeze (28°F) in Tonawanda typically arrives around Nov 11, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 28, so the watching starts about Oct 12 — about 212 days after the spring freeze cleared.
How long is the growing season in Tonawanda?
Measured between 28°F hard freezes, Tonawanda sees about 212 frost-free days — roughly Apr 13 through Nov 11, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 4 to Oct 28, about 177 days.
Is the soil safe to grow vegetables in Tonawanda?
The federal record around Tonawanda runs heavier than most — 2,807 documented sites, mostly Underground Storage Tanks entries (1,361), 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 Tonawanda?
From about Oct 12 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 11 (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 11. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Tonawanda's scale — its 6b band and its 212-day season. Your yard writes its own version of Tonawanda'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 Tonawanda’s own scale
7 of the readings below were taken at Tonawanda's own scale — its own ~212-day season between 28°F freezes, the 2,434 acres it covers and 2,807 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Tonawanda's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Tonawanda's own 28°F hard-freeze dates, about Apr 13 and Nov 11 and the ~212-day span between themNOAA 1991–2020 Climate Normals
- 2,807 documented contamination sites on the federal record near Tonawanda, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Tonawanda's boundary and the 2,434 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~212-day seasonGrowable Ground crop-matching engine
- The ecoregion at Tonawanda's own centroid, the Eastern Great Lakes LowlandsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Tonawandalydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Tonawanda's 2,434 acres read through its county's SSURGO summaryfrom Erie County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Erie County
- The growing challenges every New York grower plans around — written at state scale, so they stay on the state guidefrom New York
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Erie County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Tonawanda's 2,434 acreswhy one lot differs from the next →
- Which side of Tonawanda you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,434 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 Tonawanda-wide figureread your own land →
More in New York
Wider growing context
What grows across New YorkTonawanda sits outside our named growing regions, so New York as a whole is its closest context here.
Nearby growing guides