Sleepy Hollow, New York, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Growers here do well with cabbage, hazelnut, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Sleepy Hollow, 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 Sleepy Hollow 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 Sleepy Hollow — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Sleepy Hollow — the short answer
Sleepy Hollow, New York: USDA zone 7a, about 243 days between hard freezes, across 1K 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 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~243
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 Sleepy Hollow's average, not your lot's — a low corner or a tree line moves it. Against Sleepy Hollow's 243-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Sleepy Hollow
Each reading below is measured for Sleepy Hollow itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSleepy Hollow runs about 243 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
MeasuredSleepy Hollow 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 Sleepy Hollow is in
Sleepy Hollow sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Sleepy Hollow's own centroid rather than borrowed from Westchester County.
What Grows in Sleepy Hollow
Every plant below cleared Sleepy Hollow's own zone 7a and its 243-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Sleepy Hollow?
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 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 24 — 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 Sleepy Hollow
Spotted lanternfly documented 1 miles from Sleepy Hollow, first recorded 2020. What to watch for.
What's on the federal record near Sleepy Hollow
Closest first, within ~10 miles of Sleepy Hollow. Listing isn't leaking, and distance isn't exposure.
- SHAFT 9-NEW CROTON AQUEDUCTBrownfields · 0.6 mi
- PHELPS MEMORIAL HOSPITAL CENTERBrownfields · 0.9 mi
- LITHIUM SYSTEMS DIVISIONSuperfund · 0.9 mi
- BARRIER CONTRACTING LLCBrownfields · 1.0 mi
- LIGHTHOUSE LANDING - FORMER GM PLANTToxics Release Inventory · 1.0 mi
- HUDSON PINESBrownfields · 1.1 mi
- UNIQUE AUTO BODYBrownfields · 1.1 mi
- CASTLE NORTH TERMINALS, INCToxics Release Inventory · 1.1 mi
- NEW YORK LIFE WESTCHESTER CAMPUSBrownfields · 1.2 mi
- VALAD ELECTRIC HEATING CO RPBrownfields · 1.2 mi
- REGENERON PHARMACEUTICALS INCBrownfields · 1.3 mi
- VAN TASSEL CLEANERSBrownfields · 1.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Sleepy Hollow'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 Sleepy Hollow.
Total Sites
1,229
within ~10 miles of Sleepy Hollow
Risk Level
Elevated
Highest-severity
18 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Sleepy Hollow
Severity Distribution
within ~10 miles of Sleepy Hollow
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Sleepy Hollow, two things run higher than the national average within ~10 miles of Sleepy Hollow — PFAS (19 sites) and Brownfields (855 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Sleepy Hollow
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 Sleepy Hollow average
Your land is one point inside Sleepy Hollow
Everything above resolves to Sleepy Hollow as a whole — one PHZM band and one 28°F frost record, read across 1K 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 Sleepy Hollow Average
Sleepy Hollow Average
- ●USDA Zones 7a, averaged across Sleepy Hollow
- ●One soil character for all of Sleepy Hollow
- ●Frost dates read at Sleepy Hollow's scale: Mar 26 to Nov 24
YOUR Parcel
- ✓Your exact zone, not Sleepy Hollow's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Sleepy Hollow
Pull a site-specific report for your exact address in Sleepy Hollow, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Sleepy Hollow averages can't show:
We read public map data around Sleepy Hollow — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Sleepy Hollow average
How we know this about Sleepy Hollow
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 Sleepy Hollow’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 Sleepy Hollow
When does frost risk typically end in Sleepy Hollow?
The last hard freeze (28°F) in Sleepy Hollow 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 Sleepy Hollow?
The first hard freeze (28°F) in Sleepy Hollow typically arrives around Nov 24, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 10, so the watching starts about Oct 25 — about 243 days after the spring freeze cleared.
How long is the growing season in Sleepy Hollow?
Measured between 28°F hard freezes, Sleepy Hollow sees about 243 frost-free days — roughly Mar 26 through Nov 24, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 16 to Nov 10, about 208 days.
Is the soil safe to grow vegetables in Sleepy Hollow?
The federal record around Sleepy Hollow is a meaningful one — 1,229 documented sites, mostly Brownfields entries (855), the nearest Brownfields record about 0.6 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 Sleepy Hollow?
From about Oct 25 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 24 (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 24. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Sleepy Hollow's scale — its 7a band and its 243-day season. Your yard writes its own version of Sleepy Hollow'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 Sleepy Hollow’s own scale
7 of the readings below were taken at Sleepy Hollow's own scale — its own ~243-day season between 28°F freezes, the 1,436 acres it covers and 1,229 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Sleepy Hollow's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Sleepy Hollow's own 28°F hard-freeze dates, about Mar 26 and Nov 24 and the ~243-day span between themNOAA 1991–2020 Climate Normals
- 1,229 documented contamination sites on the federal record near Sleepy Hollow, the closest Brownfields record about 0.6 miles out from the town centreFederal environmental registers
- Sleepy Hollow's boundary and the 1,436 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~243-day seasonGrowable Ground crop-matching engine
- The ecoregion at Sleepy Hollow's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Sleepy Hollowlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Sleepy Hollow's 1,436 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 Sleepy Hollow's 1,436 acreswhy one lot differs from the next →
- Which side of Sleepy Hollow you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,436 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.6 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 Sleepy Hollow-wide figureread your own land →