Watsessing, New Jersey, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Crops well matched to these conditions include cabbage, hazelnut, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Watsessing, 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 Watsessing 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 Watsessing — soil, climate, flood, and parcel records. How we handle your address.
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Watsessing — the short answer
Watsessing, New Jersey: USDA zone 7a, about 237 days between hard freezes, across 396 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~237
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 396 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 7a is Watsessing's average, not your lot's — a low corner or a tree line moves it. Against Watsessing's 237-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Watsessing
Each reading below is measured for Watsessing itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWatsessing runs about 237 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
MeasuredWatsessing sits in USDA hardiness zone 7a.
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 Watsessing is in
Watsessing sits in the Northern Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Watsessing's own centroid rather than borrowed from Essex County.
What Grows in Watsessing
Every plant below cleared Watsessing's own zone 7a and its 237-day season. Each card opens that plant's New Jersey profile. How we score.
Is it too late to plant in Watsessing?
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 26; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 26 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 18 — 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 Watsessing
Spotted lanternfly documented 2 miles from Watsessing, first recorded 2020. What to watch for.
What's on the federal record near Watsessing
Closest first, within ~10 miles of Watsessing. Listing isn't leaking, and distance isn't exposure.
- PEERLESS TUBE COUnderground Storage Tanks · 350 ft
- PEERLESS TUBE CO INCToxics Release Inventory · 350 ft
- ESKIMO PIE CORPBrownfields · 700 ft
- ESKIMO PIE CORPUnderground Storage Tanks · 700 ft
- HOME DEPOT INCUnderground Storage Tanks · 1100 ft
- HOME DEPOT INC #928Brownfields · 1100 ft
- BLOOMFIELD CAB CO INCUnderground Storage Tanks · 1100 ft
- HUSKY AUTO REPAIR INCUnderground Storage Tanks · 1100 ft
- BARRYS CITGO SERVICEUnderground Storage Tanks · 1100 ft
- SUNOCO 0001-4290Underground Storage Tanks · 1300 ft
- SUNOCO SERVICE STATION #0001 4290Brownfields · 1300 ft
- ZACH AUTO REPAIRUnderground Storage Tanks · 1500 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Watsessing'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 Watsessing.
Sources Checked
within ~10 miles of Watsessing
Severity Distribution
within ~10 miles of Watsessing
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Watsessing, two things run higher than the national average within ~10 miles of Watsessing — Superfund (220 sites) and Toxics Release Inventory (637 sites). 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.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Watsessing
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 Watsessing average
Your land is one point inside Watsessing
Everything above resolves to Watsessing as a whole — one PHZM band and one 28°F frost record, read across 396 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 Watsessing Average
Watsessing Average
- ●USDA Zones 7a, averaged across Watsessing
- ●One soil character for all of Watsessing
- ●Frost dates read at Watsessing's scale: Mar 26 to Nov 18
YOUR Parcel
- ✓Your exact zone, not Watsessing's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Watsessing
Pull a site-specific report for your exact address in Watsessing, New Jersey — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Watsessing averages can't show:
We read public map data around Watsessing — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Watsessing average
How we know this about Watsessing
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 Watsessing’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 Watsessing
When does frost risk typically end in Watsessing?
The last hard freeze (28°F) in Watsessing typically lands around Mar 26, 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 16.
When is the first frost in Watsessing?
The first hard freeze (28°F) in Watsessing typically arrives around Nov 18, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 4, so the watching starts about Oct 19 — about 237 days after the spring freeze cleared.
How long is the growing season in Watsessing?
Measured between 28°F hard freezes, Watsessing sees about 237 frost-free days — roughly Mar 26 through Nov 18, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 16 to Nov 4, about 202 days.
Is the soil safe to grow vegetables in Watsessing?
The federal record around Watsessing runs heavier than most — 9,018 documented sites, mostly Underground Storage Tanks entries (5,771), the nearest Underground Storage Tanks 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 Watsessing?
From about Oct 19 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 18 (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 18. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Watsessing's scale — its 7a band and its 237-day season. Your yard writes its own version of Watsessing'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 Watsessing’s own scale
7 of the readings below were taken at Watsessing's own scale — its own ~237-day season between 28°F freezes, the 396 acres it covers and 9,018 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Watsessing's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Watsessing's own 28°F hard-freeze dates, about Mar 26 and Nov 18 and the ~237-day span between themNOAA 1991–2020 Climate Normals
- 9,018 documented contamination sites on the federal record near Watsessing, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Watsessing's boundary and the 396 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~237-day seasonGrowable Ground crop-matching engine
- The ecoregion at Watsessing's own centroid, the Northern PiedmontUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Watsessinglydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Watsessing's 396 acres read through its county's SSURGO summaryfrom Essex County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Essex 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 Essex County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Watsessing's 396 acreswhy one lot differs from the next →
- Which side of Watsessing you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 396 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Watsessing-wide figureread your own land →