Newfoundland, New Jersey, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
On paper, cabbage, blackberry, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Newfoundland, 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 Newfoundland 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 Newfoundland — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Newfoundland — the short answer
Newfoundland, New Jersey: USDA zone 6b, about 188 days between hard freezes, across 4K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~188
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town 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 6b is Newfoundland's average, not your lot's — a low corner or a tree line moves it. Against Newfoundland's 188-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Newfoundland
Each reading below is measured for Newfoundland itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredNewfoundland runs about 188 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredNewfoundland sits in USDA hardiness zone 6b.
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 Newfoundland is in
Newfoundland sits in the Northeastern Highlands — EPA Level III, inside the wider Northern Forests. That is read at Newfoundland's own centroid rather than borrowed from Passaic County.
What Grows in Newfoundland
Every plant below cleared Newfoundland's own zone 6b and its 188-day season. Each card opens that plant's New Jersey profile. How we score.
Is it too late to plant in Newfoundland?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 21; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 18 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 23 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
Documented around Newfoundland
Spotted lanternfly documented 3 miles from Newfoundland, first recorded 2021. What to watch for.
What's on the federal record near Newfoundland
Closest first, within ~10 miles of Newfoundland. Listing isn't leaking, and distance isn't exposure.
- KANOUSE ENTERPRISES INCUnderground Storage Tanks · 0.6 mi
- HERMAN H BRAUN INCUnderground Storage Tanks · 0.7 mi
- DOCK'S BAR & GRILLUnderground Storage Tanks · 0.7 mi
- BIG JOHNS PUBUnderground Storage Tanks · 0.7 mi
- NEWFOUNLAND DEPOTUnderground Storage Tanks · 0.8 mi
- SHELLUnderground Storage Tanks · 0.8 mi
- DEBA REALTYBrownfields · 0.9 mi
- DEL 4 INC II CORPUnderground Storage Tanks · 0.9 mi
- UNITED FELTSBrownfields · 1.0 mi
- VILLAGE SQUAREUnderground Storage Tanks · 1.2 mi
- NEWFOUNDLAND BPUnderground Storage Tanks · 1.3 mi
- SAP MANAGEMENT INCUnderground Storage Tanks · 1.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Newfoundland'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 Newfoundland.
Sources Checked
within ~10 miles of Newfoundland
Severity Distribution
within ~10 miles of Newfoundland
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Newfoundland, two things run higher than the national average within ~10 miles of Newfoundland — PFAS (11 sites) and Superfund (13 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Newfoundland
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 Newfoundland average
Your land is one point inside Newfoundland
Everything above resolves to Newfoundland 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 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 Newfoundland Average
Newfoundland Average
- ●USDA Zones 6b, averaged across Newfoundland
- ●One soil character for all of Newfoundland
- ●Frost dates read at Newfoundland's scale: Apr 18 to Oct 23
YOUR Parcel
- ✓Your exact zone, not Newfoundland's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Newfoundland
Pull a site-specific report for your exact address in Newfoundland, New Jersey — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Newfoundland averages can't show:
We read public map data around Newfoundland — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Newfoundland average
How we know this about Newfoundland
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 Newfoundland’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 Newfoundland
When does frost risk typically end in Newfoundland?
The last hard freeze (28°F) in Newfoundland typically lands around Apr 18, 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 May 9.
When is the first frost in Newfoundland?
The first hard freeze (28°F) in Newfoundland typically arrives around Oct 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 9, so the watching starts about Sep 23 — about 188 days after the spring freeze cleared.
How long is the growing season in Newfoundland?
Measured between 28°F hard freezes, Newfoundland sees about 188 frost-free days — roughly Apr 18 through Oct 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 9 to Oct 9, about 153 days.
Is the soil safe to grow vegetables in Newfoundland?
The federal record around Newfoundland runs heavier than most — 761 documented sites, mostly Underground Storage Tanks entries (445), the nearest Underground Storage Tanks record about 0.6 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 Newfoundland?
From about Sep 23 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 Oct 23 (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 Oct 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Newfoundland's scale — its 6b band and its 188-day season. Your yard writes its own version of Newfoundland'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 Newfoundland’s own scale
7 of the readings below were taken at Newfoundland's own scale — its own ~188-day season between 28°F freezes, the 4,175 acres it covers and 761 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Newfoundland's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Newfoundland's own 28°F hard-freeze dates, about Apr 18 and Oct 23 and the ~188-day span between themNOAA 1991–2020 Climate Normals
- 761 documented contamination sites on the federal record near Newfoundland, the closest Underground Storage Tanks record about 0.6 miles out from the town centreFederal environmental registers
- Newfoundland's boundary and the 4,175 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~188-day seasonGrowable Ground crop-matching engine
- The ecoregion at Newfoundland's own centroid, the Northeastern HighlandsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Newfoundlandlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Newfoundland's 4,175 acres read through its county's SSURGO summaryfrom Passaic County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Passaic 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 Passaic County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Newfoundland's 4,175 acreswhy one lot differs from the next →
- Which side of Newfoundland you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,175 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.6 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 Newfoundland-wide figureread your own land →
More in New Jersey
Wider growing context
What grows across New JerseyNewfoundland sits outside our named growing regions, so New Jersey as a whole is its closest context here.
Nearby growing guides