Glenwood Landing, New York, sits in USDA hardiness zone 7b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Crops well matched to these conditions include cabbage, prickly pear, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Glenwood Landing, 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 Glenwood Landing 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 Glenwood Landing — soil, climate, flood, and parcel records. How we handle your address.
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Glenwood Landing — the short answer
Glenwood Landing, New York: USDA zone 7b, about 251 days between hard freezes, across 621 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 23
- 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
- ~251
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 621 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 Glenwood Landing's average, not your lot's — a low corner or a tree line moves it. Against Glenwood Landing's 251-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Glenwood Landing
Each reading below is measured for Glenwood Landing itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGlenwood Landing runs about 251 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
MeasuredGlenwood Landing 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 Glenwood Landing is in
Glenwood Landing sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Glenwood Landing's own centroid rather than borrowed from Nassau County.
What Grows in Glenwood Landing
Every plant below cleared Glenwood Landing's own zone 7b and its 251-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Glenwood Landing?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 23; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 23 (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 Glenwood Landing
Spotted lanternfly documented 1 miles from Glenwood Landing, first recorded 2020. What to watch for.
What's on the federal record near Glenwood Landing
Closest first, within ~10 miles of Glenwood Landing. Listing isn't leaking, and distance isn't exposure.
- JERICHO WD WELL-WELL 1 0684TNitrate · 1600 ft
- N 5201. 1Nitrate · 2100 ft
- N 109. 1Nitrate · 2100 ft
- N 8937. 1Nitrate · 2200 ft
- N 7664. 1Nitrate · 2300 ft
- 674 GCA LLCBrownfields · 2400 ft
- N 3310. 1Nitrate · 2600 ft
- N 2002. 1Nitrate · 2600 ft
- N 3477. 1Nitrate · 2600 ft
- PENETREX PROCESSING, INCSuperfund · 0.5 mi
- GLOBAL GLENWOOD LANDING TERMINALToxics Release Inventory · 0.5 mi
- GLOBAL GLENWOOD LANDING TERMINALBrownfields · 0.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Glenwood Landing'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 Glenwood Landing.
Total Sites
4,584
within ~10 miles of Glenwood Landing
Risk Level
High
Highest-severity
37 Superfund sites
Sources Checked
within ~10 miles of Glenwood Landing
Severity Distribution
within ~10 miles of Glenwood Landing
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Glenwood Landing, Nitrate runs higher than the national average — 2,216 sites within ~10 miles of Glenwood Landing. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around 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 Glenwood Landing
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 Glenwood Landing average
Your land is one point inside Glenwood Landing
Everything above resolves to Glenwood Landing as a whole — one PHZM band and one 28°F frost record, read across 621 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 Glenwood Landing Average
Glenwood Landing Average
- ●USDA Zones 7b, averaged across Glenwood Landing
- ●One soil character for all of Glenwood Landing
- ●Frost dates read at Glenwood Landing's scale: Mar 23 to Nov 29
YOUR Parcel
- ✓Your exact zone, not Glenwood Landing's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Glenwood Landing
Pull a site-specific report for your exact address in Glenwood Landing, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Glenwood Landing averages can't show:
We read public map data around Glenwood Landing — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Glenwood Landing average
How we know this about Glenwood Landing
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 Glenwood Landing’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 Glenwood Landing
When does frost risk typically end in Glenwood Landing?
The last hard freeze (28°F) in Glenwood Landing typically lands around Mar 23, 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 13.
When is the first frost in Glenwood Landing?
The first hard freeze (28°F) in Glenwood Landing 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 251 days after the spring freeze cleared.
How long is the growing season in Glenwood Landing?
Measured between 28°F hard freezes, Glenwood Landing sees about 251 frost-free days — roughly Mar 23 through Nov 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 13 to Nov 15, about 216 days.
Is the soil safe to grow vegetables in Glenwood Landing?
The federal record around Glenwood Landing runs heavier than most — 4,584 documented sites, mostly Nitrate entries (2,216), 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 Glenwood Landing?
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 Glenwood Landing's scale — its 7b band and its 251-day season. Your yard writes its own version of Glenwood Landing'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 Glenwood Landing’s own scale
7 of the readings below were taken at Glenwood Landing's own scale — its own ~251-day season between 28°F freezes, the 621 acres it covers and 4,584 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Glenwood Landing's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Glenwood Landing's own 28°F hard-freeze dates, about Mar 23 and Nov 29 and the ~251-day span between themNOAA 1991–2020 Climate Normals
- 4,584 documented contamination sites on the federal record near Glenwood Landing, the closest Nitrate record about 0.3 miles out from the town centreFederal environmental registers
- Glenwood Landing's boundary and the 621 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~251-day seasonGrowable Ground crop-matching engine
- The ecoregion at Glenwood Landing's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Glenwood Landinglydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Glenwood Landing's 621 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 Glenwood Landing's 621 acreswhy one lot differs from the next →
- Which side of Glenwood Landing you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 621 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 Glenwood Landing-wide figureread your own land →