Roslyn Estates, New York, sits in USDA hardiness zone 7b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Expect cabbage, prickly pear, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Roslyn Estates, 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 Roslyn Estates 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 Roslyn Estates — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Roslyn Estates — the short answer
Roslyn Estates, New York: USDA zone 7b, about 250 days between hard freezes, across 280 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~250
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 280 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 7b is Roslyn Estates's average, not your lot's — a low corner or a tree line moves it. Against Roslyn Estates's 250-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Roslyn Estates
Each reading below is measured for Roslyn Estates itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRoslyn Estates runs about 250 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
MeasuredRoslyn Estates sits in USDA hardiness zone 7b.
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 Roslyn Estates is in
Roslyn Estates sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Roslyn Estates's own centroid rather than borrowed from Nassau County.
What Grows in Roslyn Estates
Every plant below cleared Roslyn Estates's own zone 7b and its 250-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Roslyn Estates?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 24; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 24 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 29 — 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 Roslyn Estates
Spotted lanternfly documented 1 miles from Roslyn Estates, first recorded 2020. What to watch for.
What's on the federal record near Roslyn Estates
Closest first, within ~10 miles of Roslyn Estates. Listing isn't leaking, and distance isn't exposure.
- N 9907. 1Nitrate · 1500 ft
- N 4623. 1Nitrate · 1600 ft
- N 8010. 1Nitrate · 1600 ft
- N 8477. 1Nitrate · 1700 ft
- CITGOUnderground Storage Tanks · 1800 ft
- MANHASSET LAKEVILLE WD -SEARINGTOWN RD WELL STATIONBrownfields · 1900 ft
- N 5528. 2Nitrate · 2000 ft
- N 2028. 2Nitrate · 2000 ft
- ESTRON OILUnderground Storage Tanks · 2600 ft
- N 592. 1Nitrate · 0.5 mi
- NYSDOT BIN 1058049Brownfields · 0.6 mi
- MANOR 2 FRENCH CLEANERSBrownfields · 0.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Roslyn Estates'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 Roslyn Estates.
Sources Checked
within ~10 miles of Roslyn Estates
Severity Distribution
within ~10 miles of Roslyn Estates
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Roslyn Estates, Nitrate runs higher than the national average — 2,568 sites within ~10 miles of Roslyn Estates. That's not a problem with your land — it's information about it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Roslyn Estates
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 Roslyn Estates average
Your land is one point inside Roslyn Estates
Everything above resolves to Roslyn Estates as a whole — one PHZM band and one 28°F frost record, read across 280 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 Roslyn Estates Average
Roslyn Estates Average
- ●USDA Zones 7b, averaged across Roslyn Estates
- ●One soil character for all of Roslyn Estates
- ●Frost dates read at Roslyn Estates's scale: Mar 24 to Nov 29
YOUR Parcel
- ✓Your exact zone, not Roslyn Estates's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Roslyn Estates
Pull a site-specific report for your exact address in Roslyn Estates, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Roslyn Estates averages can't show:
We read public map data around Roslyn Estates — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Roslyn Estates average
How we know this about Roslyn Estates
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 Roslyn Estates’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 Roslyn Estates
When does frost risk typically end in Roslyn Estates?
The last hard freeze (28°F) in Roslyn Estates typically lands around Mar 24, 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 14.
When is the first frost in Roslyn Estates?
The first hard freeze (28°F) in Roslyn Estates typically arrives around Nov 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 15, so the watching starts about Oct 30 — about 250 days after the spring freeze cleared.
How long is the growing season in Roslyn Estates?
Measured between 28°F hard freezes, Roslyn Estates sees about 250 frost-free days — roughly Mar 24 through Nov 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 14 to Nov 15, about 215 days.
Is the soil safe to grow vegetables in Roslyn Estates?
The federal record around Roslyn Estates runs heavier than most — 6,457 documented sites, mostly Nitrate entries (2,568), the nearest Nitrate record about 0.3 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 Roslyn Estates?
From about Oct 30 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 29 (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 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Roslyn Estates's scale — its 7b band and its 250-day season. Your yard writes its own version of Roslyn Estates'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 Roslyn Estates’s own scale
7 of the readings below were taken at Roslyn Estates's own scale — its own ~250-day season between 28°F freezes, the 280 acres it covers and 6,457 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Roslyn Estates's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Roslyn Estates's own 28°F hard-freeze dates, about Mar 24 and Nov 29 and the ~250-day span between themNOAA 1991–2020 Climate Normals
- 6,457 documented contamination sites on the federal record near Roslyn Estates, the closest Nitrate record about 0.3 miles out from the town centreFederal environmental registers
- Roslyn Estates's boundary and the 280 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~250-day seasonGrowable Ground crop-matching engine
- The ecoregion at Roslyn Estates's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Roslyn Estateslydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Roslyn Estates's 280 acres read through its county's SSURGO summaryfrom Nassau County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Nassau 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 Nassau County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Roslyn Estates's 280 acreswhy one lot differs from the next →
- Which side of Roslyn Estates you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 280 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.3 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 Roslyn Estates-wide figureread your own land →
More in New York
Growing region
Nearby growing guides