Westmont, New Jersey, 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.
These conditions suit cabbage, prickly pear, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Westmont, 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 Westmont 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 Westmont — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Westmont — the short answer
Westmont, New Jersey: USDA zone 7b, about 250 days between hard freezes, across 1K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 20
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~250
- 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 7b is Westmont's average, not your lot's — a low corner or a tree line moves it. Against Westmont's 250-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Westmont
Each reading below is measured for Westmont itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWestmont 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
MeasuredWestmont 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 Westmont is in
Westmont sits in the Atlantic Coastal Pine Barrens — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Westmont's own centroid rather than borrowed from Camden County.
What Grows in Westmont
Every plant below cleared Westmont's own zone 7b and its 250-day season. Each card opens that plant's New Jersey profile. How we score.
Is it too late to plant in Westmont?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 20 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 25 — 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 Westmont
Spotted lanternfly documented 0 miles from Westmont, first recorded 2018. What to watch for.
What's on the federal record near Westmont
Closest first, within ~10 miles of Westmont. Listing isn't leaking, and distance isn't exposure.
- HADDON TWP BRIARWOOD AVENUE STANDPIPEBrownfields · 450 ft
- WESTMONT FIRE CO 1Underground Storage Tanks · 1500 ft
- RAJA & PAWAN LLCUnderground Storage Tanks · 1500 ft
- WESTMONT PLAZA SHOPPING CENTERUnderground Storage Tanks · 1500 ft
- JOE'S WESTMONT SERVICEUnderground Storage Tanks · 1600 ft
- EMSLUnderground Storage Tanks · 1600 ft
- WN RUSSELL & COUnderground Storage Tanks · 1800 ft
- 070293-- Haddon Hs1Nitrate · 1900 ft
- H&S AUTOMOTIVEUnderground Storage Tanks · 2000 ft
- 2 HADDON MOBILUnderground Storage Tanks · 2100 ft
- 070290-- PW 1Nitrate · 2200 ft
- KIRSCHE EXXONUnderground Storage Tanks · 2300 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Westmont'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 Westmont.
Sources Checked
within ~10 miles of Westmont
Severity Distribution
within ~10 miles of Westmont
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Westmont, Superfund runs higher than the national average — 111 sites within ~10 miles of Westmont. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Westmont
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 Westmont average
Your land is one point inside Westmont
Everything above resolves to Westmont 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 Westmont Average
Westmont Average
- ●USDA Zones 7b, averaged across Westmont
- ●One soil character for all of Westmont
- ●Frost dates read at Westmont's scale: Mar 20 to Nov 25
YOUR Parcel
- ✓Your exact zone, not Westmont's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Westmont
Pull a site-specific report for your exact address in Westmont, New Jersey — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Westmont averages can't show:
We read public map data around Westmont — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Westmont average
How we know this about Westmont
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 Westmont’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 Westmont
When does frost risk typically end in Westmont?
The last hard freeze (28°F) in Westmont typically lands around Mar 20, 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 10.
When is the first frost in Westmont?
The first hard freeze (28°F) in Westmont typically arrives around Nov 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 11, so the watching starts about Oct 26 — about 250 days after the spring freeze cleared.
How long is the growing season in Westmont?
Measured between 28°F hard freezes, Westmont sees about 250 frost-free days — roughly Mar 20 through Nov 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 10 to Nov 11, about 215 days.
Is the soil safe to grow vegetables in Westmont?
The federal record around Westmont runs heavier than most — 5,644 documented sites, mostly Underground Storage Tanks entries (2,835), the nearest Brownfields record under a tenth of a mile 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 Westmont?
From about Oct 26 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 25 (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 25. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Westmont's scale — its 7b band and its 250-day season. Your yard writes its own version of Westmont'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 Westmont’s own scale
7 of the readings below were taken at Westmont's own scale — its own ~250-day season between 28°F freezes, the 1,424 acres it covers and 5,644 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Westmont's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Westmont's own 28°F hard-freeze dates, about Mar 20 and Nov 25 and the ~250-day span between themNOAA 1991–2020 Climate Normals
- 5,644 documented contamination sites on the federal record near Westmont, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Westmont's boundary and the 1,424 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 Westmont's own centroid, the Atlantic Coastal Pine BarrensUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Westmontlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Westmont's 1,424 acres read through its county's SSURGO summaryfrom Camden County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Camden 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 Camden County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Westmont's 1,424 acreswhy one lot differs from the next →
- Which side of Westmont you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,424 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record under a tenth of a mile 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 Westmont-wide figureread your own land →
More in New Jersey
Wider growing context
What grows across New JerseyWestmont sits outside our named growing regions, so New Jersey as a whole is its closest context here.
Nearby growing guides