Piermont, New York, sits in USDA hardiness zone 7a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
A short list that earns its place here — cabbage, hazelnut, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Piermont, 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 Piermont 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 Piermont — soil, climate, flood, and parcel records. How we handle your address.
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Piermont — the short answer
Piermont, New York: USDA zone 7a, about 241 days between hard freezes, across 431 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~241
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 431 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 Piermont's average, not your lot's — a low corner or a tree line moves it. Against Piermont's 241-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Piermont
Each reading below is measured for Piermont itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredPiermont runs about 241 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
MeasuredPiermont 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 Piermont is in
Piermont sits in the Northern Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Piermont's own centroid rather than borrowed from Rockland County.
What Grows in Piermont
Every plant below cleared Piermont's own zone 7a and its 241-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Piermont?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 26; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 26 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 22 — 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 Piermont
Spotted lanternfly documented 3 miles from Piermont, first recorded 2020. What to watch for.
What's on the federal record near Piermont
Closest first, within ~10 miles of Piermont. Listing isn't leaking, and distance isn't exposure.
- PIERMONT LFSuperfund · 700 ft
- TAPPAN ZEE ELEMENTARYUnderground Storage Tanks · 0.7 mi
- VILLAGE AUTO BODY (1 VALENTINE AVENUE INBrownfields · 1.1 mi
- RO 287Nitrate · 1.1 mi
- SUFFERN VILLAGE OF WASTE WATER TREATMENT PLANTBrownfields · 1.2 mi
- ROCKLAND COUNTRY CLUBUnderground Storage Tanks · 1.2 mi
- COUNTY AUTO BODYBrownfields · 1.2 mi
- DOMINICAN SISTERS OF SPARKILLBrownfields · 1.3 mi
- ST. THOMAS AQUINAS COLLEGE OBSERVATORYBrownfields · 1.4 mi
- MINIGRIP INCToxics Release Inventory · 1.6 mi
- ROCKLAND CO SD#1 WTPBrownfields · 1.6 mi
- NICE PAK PRODS INCBrownfields · 1.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Piermont'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 Piermont.
Total Sites
1,874
within ~10 miles of Piermont
Risk Level
Elevated
Highest-severity
19 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Piermont
Severity Distribution
within ~10 miles of Piermont
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Piermont, two things run higher than the national average within ~10 miles of Piermont — PFAS (18 sites) and Brownfields (1,036 sites). That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Piermont
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 Piermont average
Your land is one point inside Piermont
Everything above resolves to Piermont as a whole — one PHZM band and one 28°F frost record, read across 431 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 Piermont Average
Piermont Average
- ●USDA Zones 7a, averaged across Piermont
- ●One soil character for all of Piermont
- ●Frost dates read at Piermont's scale: Mar 26 to Nov 22
YOUR Parcel
- ✓Your exact zone, not Piermont's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Piermont
Pull a site-specific report for your exact address in Piermont, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Piermont averages can't show:
We read public map data around Piermont — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Piermont average
How we know this about Piermont
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 Piermont’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 Piermont
When does frost risk typically end in Piermont?
The last hard freeze (28°F) in Piermont typically lands around Mar 26, 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 16.
When is the first frost in Piermont?
The first hard freeze (28°F) in Piermont typically arrives around Nov 22, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 8, so the watching starts about Oct 23 — about 241 days after the spring freeze cleared.
How long is the growing season in Piermont?
Measured between 28°F hard freezes, Piermont sees about 241 frost-free days — roughly Mar 26 through Nov 22, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 16 to Nov 8, about 206 days.
Is the soil safe to grow vegetables in Piermont?
The federal record around Piermont is a meaningful one — 1,874 documented sites, mostly Brownfields entries (1,036), the nearest Superfund record about 0.1 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 Piermont?
From about Oct 23 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 22 (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 22. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Piermont's scale — its 7a band and its 241-day season. Your yard writes its own version of Piermont'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 Piermont’s own scale
7 of the readings below were taken at Piermont's own scale — its own ~241-day season between 28°F freezes, the 431 acres it covers and 1,874 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Piermont's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Piermont's own 28°F hard-freeze dates, about Mar 26 and Nov 22 and the ~241-day span between themNOAA 1991–2020 Climate Normals
- 1,874 documented contamination sites on the federal record near Piermont, the closest Superfund record about 0.1 miles out from the town centreFederal environmental registers
- Piermont's boundary and the 431 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~241-day seasonGrowable Ground crop-matching engine
- The ecoregion at Piermont's own centroid, the Northern PiedmontUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Piermontlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Piermont's 431 acres read through its county's SSURGO summaryfrom Rockland County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Rockland 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 Rockland County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Piermont's 431 acreswhy one lot differs from the next →
- Which side of Piermont you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 431 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Superfund 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 Piermont-wide figureread your own land →
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