Whitesboro, New Jersey, sits in USDA hardiness zone 7b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
A short list that earns its place here — cabbage, prickly pear, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Whitesboro, 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 Whitesboro 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 Whitesboro — soil, climate, flood, and parcel records. How we handle your address.
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Whitesboro — the short answer
Whitesboro, New Jersey: USDA zone 7b, about 247 days between hard freezes, across 2K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~247
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K 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 Whitesboro's average, not your lot's — a low corner or a tree line moves it. Against Whitesboro's 247-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Whitesboro
Each reading below is measured for Whitesboro itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWhitesboro runs about 247 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
MeasuredWhitesboro 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 Whitesboro is in
Whitesboro sits in the Atlantic Coastal Pine Barrens — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Whitesboro's own centroid rather than borrowed from Cape May County.
What Grows in Whitesboro
Every plant below cleared Whitesboro's own zone 7b and its 247-day season. Each card opens that plant's New Jersey profile. How we score.
Is it too late to plant in Whitesboro?
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 19; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 19 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 21 — 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 Whitesboro
Spotted lanternfly documented 4 miles from Whitesboro, first recorded 2018. What to watch for.
What's on the federal record near Whitesboro
Closest first, within ~10 miles of Whitesboro. Listing isn't leaking, and distance isn't exposure.
- 090397-- MW-4 SepticNitrate · 0.8 mi
- 090388-- 1990 DomNitrate · 0.9 mi
- ALBERT E MORELLIUnderground Storage Tanks · 0.9 mi
- HOME DEPOTUnderground Storage Tanks · 1.0 mi
- HOME DEPOT USA HD0943Brownfields · 1.0 mi
- SOUTH JERSEY GAS COBrownfields · 1.0 mi
- 10 MAIN STREET SUnderground Storage Tanks · 1.1 mi
- CMCMUA TRANSFER STATIONBrownfields · 1.1 mi
- CMCMUA SOLID WASTE TRANSFER STATUnderground Storage Tanks · 1.1 mi
- AVALON STATE POLICE BARRACKSUnderground Storage Tanks · 1.1 mi
- SWAINTON OFFICEUnderground Storage Tanks · 1.1 mi
- 090334-- MW-1 Transfer StationNitrate · 1.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Whitesboro'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 Whitesboro.
Sources Checked
within ~10 miles of Whitesboro
Severity Distribution
within ~10 miles of Whitesboro
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Whitesboro, two things run higher than the national average within ~10 miles of Whitesboro — PFAS (8 sites) and Superfund (9 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.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Whitesboro
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 Whitesboro average
Your land is one point inside Whitesboro
Everything above resolves to Whitesboro as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Whitesboro Average
Whitesboro Average
- ●USDA Zones 7b, averaged across Whitesboro
- ●One soil character for all of Whitesboro
- ●Frost dates read at Whitesboro's scale: Mar 19 to Nov 21
YOUR Parcel
- ✓Your exact zone, not Whitesboro's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Whitesboro
Pull a site-specific report for your exact address in Whitesboro, New Jersey — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Whitesboro averages can't show:
We read public map data around Whitesboro — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Whitesboro average
How we know this about Whitesboro
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 Whitesboro’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 Whitesboro
When does frost risk typically end in Whitesboro?
The last hard freeze (28°F) in Whitesboro typically lands around Mar 19, 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 9.
When is the first frost in Whitesboro?
The first hard freeze (28°F) in Whitesboro typically arrives around Nov 21, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 7, so the watching starts about Oct 22 — about 247 days after the spring freeze cleared.
How long is the growing season in Whitesboro?
Measured between 28°F hard freezes, Whitesboro sees about 247 frost-free days — roughly Mar 19 through Nov 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 9 to Nov 7, about 212 days.
Is the soil safe to grow vegetables in Whitesboro?
The federal record around Whitesboro is a meaningful one — 551 documented sites, mostly Underground Storage Tanks entries (327), the nearest Nitrate record about 0.8 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 Whitesboro?
From about Oct 22 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 21 (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 21. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Whitesboro's scale — its 7b band and its 247-day season. Your yard writes its own version of Whitesboro'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 Whitesboro’s own scale
7 of the readings below were taken at Whitesboro's own scale — its own ~247-day season between 28°F freezes, the 2,266 acres it covers and 551 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Whitesboro's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Whitesboro's own 28°F hard-freeze dates, about Mar 19 and Nov 21 and the ~247-day span between themNOAA 1991–2020 Climate Normals
- 551 documented contamination sites on the federal record near Whitesboro, the closest Nitrate record about 0.8 miles out from the town centreFederal environmental registers
- Whitesboro's boundary and the 2,266 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~247-day seasonGrowable Ground crop-matching engine
- The ecoregion at Whitesboro's own centroid, the Atlantic Coastal Pine BarrensUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Whitesborolydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Whitesboro's 2,266 acres read through its county's SSURGO summaryfrom Cape May County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Cape May County
- The growing challenges every New Jersey grower plans around — written at state scale, so they stay on the state guidefrom New Jersey
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Cape May County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Whitesboro's 2,266 acreswhy one lot differs from the next →
- Which side of Whitesboro you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,266 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.8 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 Whitesboro-wide figureread your own land →