Wanamassa, New Jersey, 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.
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 Wanamassa, 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 Wanamassa 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 Wanamassa — soil, climate, flood, and parcel records. How we handle your address.
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Wanamassa — the short answer
Wanamassa, New Jersey: USDA zone 7b, about 241 days between hard freezes, across 713 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 25
- 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
- ~241
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 713 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 Wanamassa's average, not your lot's — a low corner or a tree line moves it. Against Wanamassa's 241-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Wanamassa
Each reading below is measured for Wanamassa itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWanamassa runs about 241 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
MeasuredWanamassa 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 Wanamassa is in
Wanamassa sits in the Atlantic Coastal Pine Barrens — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Wanamassa's own centroid rather than borrowed from Monmouth County.
What Grows in Wanamassa
Every plant below cleared Wanamassa's own zone 7b and its 241-day season. Each card opens that plant's New Jersey profile. How we score.
Is it too late to plant in Wanamassa?
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 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 25 (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 Wanamassa
Spotted lanternfly documented 3 miles from Wanamassa, first recorded 2020. What to watch for.
What's on the federal record near Wanamassa
Closest first, within ~10 miles of Wanamassa. Listing isn't leaking, and distance isn't exposure.
- VOLTAGE ELECTRICAL SUPPLY CO INCUnderground Storage Tanks · 1700 ft
- LAPIN PRODUCTS INCUnderground Storage Tanks · 1900 ft
- JERSEY GASUnderground Storage Tanks · 1900 ft
- AMERICAN BLUEPRINT & SUPPLY CO IUnderground Storage Tanks · 2100 ft
- WHITE SWAN LAUNDRY CLEANERSUnderground Storage Tanks · 2100 ft
- L D SEELY COUnderground Storage Tanks · 2200 ft
- 3329 DORIS AVENUEUnderground Storage Tanks · 2300 ft
- WANAMASSA SUNOCOUnderground Storage Tanks · 2500 ft
- GETTY 56057Underground Storage Tanks · 2500 ft
- WEGMANS FOOD MARKET #9Brownfields · 2600 ft
- HI KATZ CLEANERSUnderground Storage Tanks · 2600 ft
- CVS PHARMACY #10031Brownfields · 2600 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Wanamassa'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 Wanamassa.
Sources Checked
within ~10 miles of Wanamassa
Severity Distribution
within ~10 miles of Wanamassa
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Wanamassa, two things run higher than the national average within ~10 miles of Wanamassa — Underground Storage Tanks (998 sites) and Superfund (20 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Wanamassa
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 Wanamassa average
Your land is one point inside Wanamassa
Everything above resolves to Wanamassa as a whole — one PHZM band and one 28°F frost record, read across 713 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 Wanamassa Average
Wanamassa Average
- ●USDA Zones 7b, averaged across Wanamassa
- ●One soil character for all of Wanamassa
- ●Frost dates read at Wanamassa's scale: Mar 25 to Nov 21
YOUR Parcel
- ✓Your exact zone, not Wanamassa's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Wanamassa
Pull a site-specific report for your exact address in Wanamassa, New Jersey — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Wanamassa averages can't show:
We read public map data around Wanamassa — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Wanamassa average
How we know this about Wanamassa
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 Wanamassa’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 Wanamassa
When does frost risk typically end in Wanamassa?
The last hard freeze (28°F) in Wanamassa typically lands around Mar 25, 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 15.
When is the first frost in Wanamassa?
The first hard freeze (28°F) in Wanamassa 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 241 days after the spring freeze cleared.
How long is the growing season in Wanamassa?
Measured between 28°F hard freezes, Wanamassa sees about 241 frost-free days — roughly Mar 25 through Nov 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 15 to Nov 7, about 206 days.
Is the soil safe to grow vegetables in Wanamassa?
The federal record around Wanamassa runs heavier than most — 1,411 documented sites, mostly Underground Storage Tanks entries (998), the nearest Underground Storage Tanks 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 Wanamassa?
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 Wanamassa's scale — its 7b band and its 241-day season. Your yard writes its own version of Wanamassa'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 Wanamassa’s own scale
7 of the readings below were taken at Wanamassa's own scale — its own ~241-day season between 28°F freezes, the 713 acres it covers and 1,411 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Wanamassa's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Wanamassa's own 28°F hard-freeze dates, about Mar 25 and Nov 21 and the ~241-day span between themNOAA 1991–2020 Climate Normals
- 1,411 documented contamination sites on the federal record near Wanamassa, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Wanamassa's boundary and the 713 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~241-day seasonGrowable Ground crop-matching engine
- The ecoregion at Wanamassa's own centroid, the Atlantic Coastal Pine BarrensUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Wanamassalydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Wanamassa's 713 acres read through its county's SSURGO summaryfrom Monmouth County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Monmouth 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 Monmouth County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Wanamassa's 713 acreswhy one lot differs from the next →
- Which side of Wanamassa you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 713 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Wanamassa-wide figureread your own land →
More in New Jersey
Wider growing context
What grows across New JerseyWanamassa sits outside our named growing regions, so New Jersey as a whole is its closest context here.
Nearby growing guides