Elmsford, 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 Elmsford, 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 Elmsford 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 Elmsford — soil, climate, flood, and parcel records. How we handle your address.
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Elmsford — the short answer
Elmsford, New York: USDA zone 7a, about 236 days between hard freezes, across 676 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~236
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 676 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 Elmsford's average, not your lot's — a low corner or a tree line moves it. Against Elmsford's 236-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Elmsford
Each reading below is measured for Elmsford itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredElmsford runs about 236 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
MeasuredElmsford 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 Elmsford is in
Elmsford sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Elmsford's own centroid rather than borrowed from Westchester County.
What Grows in Elmsford
Every plant below cleared Elmsford's own zone 7a and its 236-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Elmsford?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 28 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 19 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around Elmsford
Spotted lanternfly documented 3 miles from Elmsford, first recorded 2020. What to watch for.
What's on the federal record near Elmsford
Closest first, within ~10 miles of Elmsford. Listing isn't leaking, and distance isn't exposure.
- NYSDOT BIN 5053200 & 5053210Brownfields · 1200 ft
- NYSDOT-WINTHROP AVE BRIDGE OVER I-287Brownfields · 1200 ft
- NYCDEP ELMSFORD NORTH SIPHON CHAMBERBrownfields · 1200 ft
- CVS PHARMACY #2579Brownfields · 1500 ft
- ELMSFORD VILLAGE OFBrownfields · 1500 ft
- NYSDOT BIN 1006109Brownfields · 1600 ft
- CON EDISON - ELMSFORD SUBSTATIONBrownfields · 1700 ft
- NYSDOT BIN 1044619Brownfields · 1800 ft
- CREATIVE AUTOBODY INCBrownfields · 1900 ft
- BROOKFIELD RESOURCE MGMTBrownfields · 1900 ft
- HHH AUTO BODYBrownfields · 2000 ft
- RADON TESTING CORPORATION OF AMERICA INCBrownfields · 2100 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Elmsford'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 Elmsford.
Total Sites
1,509
within ~10 miles of Elmsford
Risk Level
Elevated
Highest-severity
13 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Elmsford
Severity Distribution
within ~10 miles of Elmsford
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Elmsford, two things run higher than the national average within ~10 miles of Elmsford — PFAS (20 sites) and Brownfields (1,095 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 Elmsford
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 Elmsford average
Your land is one point inside Elmsford
Everything above resolves to Elmsford as a whole — one PHZM band and one 28°F frost record, read across 676 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 Elmsford Average
Elmsford Average
- ●USDA Zones 7a, averaged across Elmsford
- ●One soil character for all of Elmsford
- ●Frost dates read at Elmsford's scale: Mar 28 to Nov 19
YOUR Parcel
- ✓Your exact zone, not Elmsford's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Elmsford
Pull a site-specific report for your exact address in Elmsford, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Elmsford averages can't show:
We read public map data around Elmsford — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Elmsford average
How we know this about Elmsford
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 Elmsford’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 Elmsford
When does frost risk typically end in Elmsford?
The last hard freeze (28°F) in Elmsford typically lands around Mar 28, 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 18.
When is the first frost in Elmsford?
The first hard freeze (28°F) in Elmsford typically arrives around Nov 19, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 5, so the watching starts about Oct 20 — about 236 days after the spring freeze cleared.
How long is the growing season in Elmsford?
Measured between 28°F hard freezes, Elmsford sees about 236 frost-free days — roughly Mar 28 through Nov 19, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 18 to Nov 5, about 201 days.
Is the soil safe to grow vegetables in Elmsford?
The federal record around Elmsford is a meaningful one — 1,509 documented sites, mostly Brownfields entries (1,095), the nearest Brownfields 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 Elmsford?
From about Oct 20 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 19 (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 19. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Elmsford's scale — its 7a band and its 236-day season. Your yard writes its own version of Elmsford'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 Elmsford’s own scale
7 of the readings below were taken at Elmsford's own scale — its own ~236-day season between 28°F freezes, the 676 acres it covers and 1,509 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Elmsford's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Elmsford's own 28°F hard-freeze dates, about Mar 28 and Nov 19 and the ~236-day span between themNOAA 1991–2020 Climate Normals
- 1,509 documented contamination sites on the federal record near Elmsford, the closest Brownfields record about 0.2 miles out from the town centreFederal environmental registers
- Elmsford's boundary and the 676 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~236-day seasonGrowable Ground crop-matching engine
- The ecoregion at Elmsford's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Elmsfordlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Elmsford's 676 acres read through its county's SSURGO summaryfrom Westchester County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Westchester 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 Westchester County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Elmsford's 676 acreswhy one lot differs from the next →
- Which side of Elmsford you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 676 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Elmsford-wide figureread your own land →
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