Glen Cove, 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.
Among the crops suited to this profile: cabbage, prickly pear, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Glen Cove, 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 Glen Cove 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 Glen Cove — soil, climate, flood, and parcel records. How we handle your address.
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Glen Cove — the short answer
Glen Cove, New York: USDA zone 7b, about 252 days between hard freezes, across 4K acres of city.
- 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 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~252
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 4K 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 Glen Cove's average, not your lot's — a low corner or a tree line moves it. Against Glen Cove's 252-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Glen Cove
Each reading below is measured for Glen Cove itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGlen Cove runs about 252 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
MeasuredGlen Cove 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 Glen Cove is in
Glen Cove sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Glen Cove's own centroid rather than borrowed from Nassau County.
What Grows in Glen Cove
Every plant below cleared Glen Cove's own zone 7b and its 252-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Glen Cove?
Usually not — gardeners here simply switch what goes in the ground as the season moves. 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 30 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Glen Cove
Spotted lanternfly documented 1 miles from Glen Cove, first recorded 2022. What to watch for.
What's on the federal record near Glen Cove
Closest first, within ~10 miles of Glen Cove. Listing isn't leaking, and distance isn't exposure.
- WEBB INSTITUTEBrownfields · 2600 ft
- N 8350. 1Nitrate · 1.0 mi
- N 835. 1Nitrate · 1.1 mi
- GLEN COVE CITY OF - GOLF COURSEBrownfields · 1.1 mi
- GLEN COVE CITYPFAS · 1.2 mi
- N 3892. 2Nitrate · 1.3 mi
- N 5261. 2Nitrate · 1.3 mi
- ATOP CLEANERS, INCBrownfields · 1.4 mi
- CVS PHARMACY #3247Brownfields · 1.4 mi
- NYSDEC-FRMR RON HILL CLEANERSBrownfields · 1.4 mi
- ADVANCE AUTO PARTS #7115Brownfields · 1.4 mi
- WALGREENS 02626Brownfields · 1.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Glen Cove'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 Glen Cove.
Sources Checked
within ~10 miles of Glen Cove
Severity Distribution
within ~10 miles of Glen Cove
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Glen Cove, two things run higher than the national average within ~10 miles of Glen Cove — Nitrate (1,048 sites) and PFAS (21 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Glen Cove
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 Glen Cove average
Your land is one point inside Glen Cove
Everything above resolves to Glen Cove as a whole — one PHZM band and one 28°F frost record, read across 4K 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 city 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 Glen Cove Average
Glen Cove Average
- ●USDA Zones 7b, averaged across Glen Cove
- ●One soil character for all of Glen Cove
- ●Frost dates read at Glen Cove's scale: Mar 23 to Nov 30
YOUR Parcel
- ✓Your exact zone, not Glen Cove's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Glen Cove
Pull a site-specific report for your exact address in Glen Cove, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Glen Cove averages can't show:
We read public map data around Glen Cove — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Glen Cove average
How we know this about Glen Cove
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Glen Cove’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 city grain anywhere on this page — there is no city-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 Glen Cove
When does frost risk typically end in Glen Cove?
The last hard freeze (28°F) in Glen Cove 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 Glen Cove?
The first hard freeze (28°F) in Glen Cove typically arrives around Nov 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 16, so the watching starts about Oct 31 — about 252 days after the spring freeze cleared.
How long is the growing season in Glen Cove?
Measured between 28°F hard freezes, Glen Cove sees about 252 frost-free days — roughly Mar 23 through Nov 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 13 to Nov 16, about 217 days.
Is the soil safe to grow vegetables in Glen Cove?
The federal record around Glen Cove runs heavier than most — 2,486 documented sites, mostly Nitrate entries (1,048), the nearest Brownfields record about 0.5 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 Glen Cove?
From about Oct 31 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 30 (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 30. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Glen Cove's scale — its 7b band and its 252-day season. Your yard writes its own version of Glen Cove'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 Glen Cove’s own scale
7 of the readings below were taken at Glen Cove's own scale — its own ~252-day season between 28°F freezes, the 4,261 acres it covers and 2,486 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Glen Cove's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Glen Cove's own 28°F hard-freeze dates, about Mar 23 and Nov 30 and the ~252-day span between themNOAA 1991–2020 Climate Normals
- 2,486 documented contamination sites on the federal record near Glen Cove, the closest Brownfields record about 0.5 miles out from the town centreFederal environmental registers
- Glen Cove's boundary and the 4,261 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~252-day seasonGrowable Ground crop-matching engine
- The ecoregion at Glen Cove's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Glen Covelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Glen Cove's 4,261 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 Glen Cove's 4,261 acreswhy one lot differs from the next →
- Which side of Glen Cove you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,261 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.5 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 Glen Cove-wide figureread your own land →
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