Brass Castle, New Jersey, sits in USDA hardiness zone 6b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Among the crops suited to this profile: cabbage, hazelnut, lavender, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Brass Castle, 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 Brass Castle 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 Brass Castle — soil, climate, flood, and parcel records. How we handle your address.
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Brass Castle — the short answer
Brass Castle, New Jersey: USDA zone 6b, about 211 days between hard freezes, across 2K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 4
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~211
- 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 6b is Brass Castle's average, not your lot's — a low corner or a tree line moves it. Against Brass Castle's 211-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Brass Castle
Each reading below is measured for Brass Castle itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBrass Castle runs about 211 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
MeasuredBrass Castle 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 Brass Castle is in
Brass Castle sits in the Northeastern Highlands — EPA Level III, inside the wider Northern Forests. That is read at Brass Castle's own centroid, and it is not what its county reads: Warren County is mostly Ridge and Valley. The wider page above you is answering a different question about different ground.
What Grows in Brass Castle
Every plant below cleared Brass Castle's own zone 6b and its 211-day season. Each card opens that plant's New Jersey profile. How we score.
Is it too late to plant in Brass Castle?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 10; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 7 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 4 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
Documented around Brass Castle
Spotted lanternfly documented 3 miles from Brass Castle, first recorded 2018. What to watch for.
What's on the federal record near Brass Castle
Closest first, within ~10 miles of Brass Castle. Listing isn't leaking, and distance isn't exposure.
- 410248-- DomesticNitrate · 1900 ft
- MUNICIPAL BUILDINGUnderground Storage Tanks · 2200 ft
- MERRIL CREEK RESERVOIRUnderground Storage Tanks · 0.5 mi
- WILLIAM SCHNETTLER & SONS INCUnderground Storage Tanks · 0.6 mi
- WASHINGTON RCLRUnderground Storage Tanks · 0.7 mi
- F&B ARCHITECTURAL MILLWORK INCUnderground Storage Tanks · 0.7 mi
- HALF PINT LEARNING CENTERBrownfields · 1.2 mi
- BRASS CASTLE FIRE HOUSEUnderground Storage Tanks · 1.3 mi
- TRACTOR SUPPLY #792Brownfields · 1.4 mi
- JCP&L WASHINGTON DISTRICT OFFICEUnderground Storage Tanks · 1.4 mi
- OXFORD TEXTILE INCToxics Release Inventory · 1.4 mi
- AMITECH COMPUTER SERVICEBrownfields · 1.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Brass Castle'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 Brass Castle.
Sources Checked
within ~10 miles of Brass Castle
Severity Distribution
within ~10 miles of Brass Castle
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Brass Castle, Superfund runs higher than the national average — 10 sites within ~10 miles of Brass Castle. 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 Brass Castle
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 Brass Castle average
Your land is one point inside Brass Castle
Everything above resolves to Brass Castle 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 Brass Castle Average
Brass Castle Average
- ●USDA Zones 6b, averaged across Brass Castle
- ●One soil character for all of Brass Castle
- ●Frost dates read at Brass Castle's scale: Apr 7 to Nov 4
YOUR Parcel
- ✓Your exact zone, not Brass Castle's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Brass Castle
Pull a site-specific report for your exact address in Brass Castle, New Jersey — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Brass Castle averages can't show:
We read public map data around Brass Castle — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Brass Castle average
How we know this about Brass Castle
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 Brass Castle’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 Brass Castle
When does frost risk typically end in Brass Castle?
The last hard freeze (28°F) in Brass Castle typically lands around Apr 7, 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 28.
When is the first frost in Brass Castle?
The first hard freeze (28°F) in Brass Castle typically arrives around Nov 4, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 21, so the watching starts about Oct 5 — about 211 days after the spring freeze cleared.
How long is the growing season in Brass Castle?
Measured between 28°F hard freezes, Brass Castle sees about 211 frost-free days — roughly Apr 7 through Nov 4, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 28 to Oct 21, about 176 days.
Is the soil safe to grow vegetables in Brass Castle?
The federal record around Brass Castle is a meaningful one — 625 documented sites, mostly Underground Storage Tanks entries (369), the nearest Nitrate record about 0.4 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 Brass Castle?
From about Oct 5 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 4 (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 4. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Brass Castle's scale — its 6b band and its 211-day season. Your yard writes its own version of Brass Castle'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 Brass Castle’s own scale
7 of the readings below were taken at Brass Castle's own scale — its own ~211-day season between 28°F freezes, the 1,881 acres it covers and 625 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Brass Castle's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Brass Castle's own 28°F hard-freeze dates, about Apr 7 and Nov 4 and the ~211-day span between themNOAA 1991–2020 Climate Normals
- 625 documented contamination sites on the federal record near Brass Castle, the closest Nitrate record about 0.4 miles out from the town centreFederal environmental registers
- Brass Castle's boundary and the 1,881 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~211-day seasonGrowable Ground crop-matching engine
- Brass Castle sits in the Northeastern Highlands — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Brass Castlelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Brass Castle's 1,881 acres read through its county's SSURGO summaryfrom Warren County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Warren 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 Warren County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Brass Castle's 1,881 acreswhy one lot differs from the next →
- Which side of Brass Castle you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,881 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.4 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 Brass Castle-wide figureread your own land →