Grahamsville, New York, sits in USDA hardiness zone 6a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
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 Grahamsville, 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 Grahamsville 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 Grahamsville — soil, climate, flood, and parcel records. How we handle your address.
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Grahamsville — the short answer
Grahamsville, New York: USDA zone 6a, about 182 days between hard freezes, across 943 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~182
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 943 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 6a is Grahamsville's average, not your lot's — a low corner or a tree line moves it. Against Grahamsville's 182-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Grahamsville
Each reading below is measured for Grahamsville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGrahamsville runs about 182 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
MeasuredGrahamsville sits in USDA hardiness zone 6a.
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 Grahamsville is in
Grahamsville sits in the Northeastern Highlands — EPA Level III, inside the wider Northern Forests. That is read at Grahamsville's own centroid, and it is not what its county reads: Sullivan County is mostly Northern Allegheny Plateau. The wider page above you is answering a different question about different ground.
What Grows in Grahamsville
Every plant below cleared Grahamsville's own zone 6a and its 182-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Grahamsville?
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 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 22 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 21 — 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 Grahamsville
Spotted lanternfly documented 14 miles from Grahamsville, first recorded 2022. What to watch for.
What's on the federal record near Grahamsville
Closest first, within ~10 miles of Grahamsville. Listing isn't leaking, and distance isn't exposure.
- NYSDOT BIN 1027070Brownfields · 0.7 mi
- NYC DEP LAB GRAHAMSVILLE-TREATMENT 2 UVBrownfields · 0.7 mi
- SV2495Nitrate · 0.7 mi
- NYCDEP - GRAHAMSVILLE WTPBrownfields · 0.7 mi
- NYCDEP - W DELAWARE TUNNEL OUTLET WDTOBrownfields · 0.8 mi
- TRI-VALLEY CENTRAL SCHOOLUnderground Storage Tanks · 0.8 mi
- EARL D SHEELEY & SON INCUnderground Storage Tanks · 1.0 mi
- GREY'S WOODWORKS, INCUnderground Storage Tanks · 1.0 mi
- MASCHIO'S COUNTRY DEPOT INC.Underground Storage Tanks · 1.1 mi
- TOWN OF NEVERSINK HIWAY GARAGEUnderground Storage Tanks · 1.4 mi
- SULLIVAN CO - COUNTY BRIDGE 386 BIN 3229170Brownfields · 1.5 mi
- NEVERSINKBrownfields · 1.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Grahamsville'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 Grahamsville.
Sources Checked
within ~10 miles of Grahamsville
Severity Distribution
within ~10 miles of Grahamsville
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Grahamsville, Underground Storage Tanks runs higher than the national average — 76 sites within ~10 miles of Grahamsville. That's not a problem with your land — it's information about it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Grahamsville
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 Grahamsville average
Your land is one point inside Grahamsville
Everything above resolves to Grahamsville as a whole — one PHZM band and one 28°F frost record, read across 943 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 Grahamsville Average
Grahamsville Average
- ●USDA Zones 6a, averaged across Grahamsville
- ●One soil character for all of Grahamsville
- ●Frost dates read at Grahamsville's scale: Apr 22 to Oct 21
YOUR Parcel
- ✓Your exact zone, not Grahamsville's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Grahamsville
Pull a site-specific report for your exact address in Grahamsville, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Grahamsville averages can't show:
We read public map data around Grahamsville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Grahamsville average
How we know this about Grahamsville
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 Grahamsville’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 Grahamsville
When does frost risk typically end in Grahamsville?
The last hard freeze (28°F) in Grahamsville typically lands around Apr 22, 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 13.
When is the first frost in Grahamsville?
The first hard freeze (28°F) in Grahamsville typically arrives around Oct 21, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 7, so the watching starts about Sep 21 — about 182 days after the spring freeze cleared.
How long is the growing season in Grahamsville?
Measured between 28°F hard freezes, Grahamsville sees about 182 frost-free days — roughly Apr 22 through Oct 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 13 to Oct 7, about 147 days.
Is the soil safe to grow vegetables in Grahamsville?
The federal record around Grahamsville shows 117 documented sites, mostly Underground Storage Tanks entries (76), the nearest Brownfields record about 0.7 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Grahamsville?
From about Sep 21 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 21 (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 21. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Grahamsville's scale — its 6a band and its 182-day season. Your yard writes its own version of Grahamsville'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 Grahamsville’s own scale
7 of the readings below were taken at Grahamsville's own scale — its own ~182-day season between 28°F freezes, the 943 acres it covers and 117 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Grahamsville's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Grahamsville's own 28°F hard-freeze dates, about Apr 22 and Oct 21 and the ~182-day span between themNOAA 1991–2020 Climate Normals
- 117 documented contamination sites on the federal record near Grahamsville, the closest Brownfields record about 0.7 miles out from the town centreFederal environmental registers
- Grahamsville's boundary and the 943 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~182-day seasonGrowable Ground crop-matching engine
- Grahamsville sits in the Northeastern Highlands — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Grahamsvillelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Grahamsville's 943 acres read through its county's SSURGO summaryfrom Sullivan County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Sullivan 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 Sullivan County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Grahamsville's 943 acreswhy one lot differs from the next →
- Which side of Grahamsville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 943 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.7 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 Grahamsville-wide figureread your own land →
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