Mullica Hill, New Jersey, sits in USDA hardiness zone 7b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Well-matched crops include cabbage, prickly pear, california poppy, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Mullica Hill, 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 Mullica Hill 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 Mullica Hill — soil, climate, flood, and parcel records. How we handle your address.
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Mullica Hill — the short answer
Mullica Hill, New Jersey: USDA zone 7b, about 241 days between hard freezes, across 2K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 22
- 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
- ~241
- 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 7b is Mullica Hill's average, not your lot's — a low corner or a tree line moves it. Against Mullica Hill's 241-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Mullica Hill
Each reading below is measured for Mullica Hill itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMullica Hill 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
MeasuredMullica Hill 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 Mullica Hill is in
Mullica Hill sits in the Atlantic Coastal Pine Barrens — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Mullica Hill's own centroid rather than borrowed from Gloucester County.
What Grows in Mullica Hill
Every plant below cleared Mullica Hill'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 Mullica Hill?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Feb 22; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 22 (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. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around Mullica Hill
Spotted lanternfly documented 2 miles from Mullica Hill, first recorded 2018. What to watch for.
What's on the federal record near Mullica Hill
Closest first, within ~10 miles of Mullica Hill. Listing isn't leaking, and distance isn't exposure.
- MULLICA HILL SHELL & GULFUnderground Storage Tanks · 1300 ft
- THE STOREUnderground Storage Tanks · 2500 ft
- NJ AMERICAN WATER - HARRISONPFAS · 0.6 mi
- WAWA #8308PFAS · 0.6 mi
- 150125-- DomNitrate · 0.6 mi
- SLRD MULICA HILLToxics Release Inventory · 0.6 mi
- HARRISON TWPUnderground Storage Tanks · 0.9 mi
- SLRD CO - MULLICA HILL LLCToxics Release Inventory · 0.9 mi
- WILLIAM E RUSSELL & SONS INCUnderground Storage Tanks · 1.1 mi
- FRIENDS SCHOOL MULLICA HILLBrownfields · 1.2 mi
- HARRISON TWP SCHOOLUnderground Storage Tanks · 1.2 mi
- 150130-- PW 3Nitrate · 1.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Mullica Hill'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 Mullica Hill.
Sources Checked
within ~10 miles of Mullica Hill
Severity Distribution
within ~10 miles of Mullica Hill
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Mullica Hill, two things run higher than the national average within ~10 miles of Mullica Hill — Nitrate (718 sites) and Superfund (31 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Mullica Hill
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 Mullica Hill average
Your land is one point inside Mullica Hill
Everything above resolves to Mullica Hill 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 Mullica Hill Average
Mullica Hill Average
- ●USDA Zones 7b, averaged across Mullica Hill
- ●One soil character for all of Mullica Hill
- ●Frost dates read at Mullica Hill's scale: Mar 22 to Nov 18
YOUR Parcel
- ✓Your exact zone, not Mullica Hill's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Mullica Hill
Pull a site-specific report for your exact address in Mullica Hill, New Jersey — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Mullica Hill averages can't show:
We read public map data around Mullica Hill — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Mullica Hill average
How we know this about Mullica Hill
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 Mullica Hill’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 Mullica Hill
When does frost risk typically end in Mullica Hill?
The last hard freeze (28°F) in Mullica Hill typically lands around Mar 22, 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 12.
When is the first frost in Mullica Hill?
The first hard freeze (28°F) in Mullica Hill 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 241 days after the spring freeze cleared.
How long is the growing season in Mullica Hill?
Measured between 28°F hard freezes, Mullica Hill sees about 241 frost-free days — roughly Mar 22 through Nov 18, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 12 to Nov 4, about 206 days.
Is the soil safe to grow vegetables in Mullica Hill?
The federal record around Mullica Hill runs heavier than most — 1,748 documented sites, mostly Nitrate entries (718), 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 Mullica Hill?
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 Mullica Hill's scale — its 7b band and its 241-day season. Your yard writes its own version of Mullica Hill'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 Mullica Hill’s own scale
7 of the readings below were taken at Mullica Hill's own scale — its own ~241-day season between 28°F freezes, the 2,400 acres it covers and 1,748 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Mullica Hill's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Mullica Hill's own 28°F hard-freeze dates, about Mar 22 and Nov 18 and the ~241-day span between themNOAA 1991–2020 Climate Normals
- 1,748 documented contamination sites on the federal record near Mullica Hill, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Mullica Hill's boundary and the 2,400 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 Mullica Hill's own centroid, the Atlantic Coastal Pine BarrensUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Mullica Hilllydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Mullica Hill's 2,400 acres read through its county's SSURGO summaryfrom Gloucester County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Gloucester 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 Gloucester County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Mullica Hill's 2,400 acreswhy one lot differs from the next →
- Which side of Mullica Hill you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,400 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 Mullica Hill-wide figureread your own land →
More in New Jersey
Wider growing context
What grows across New JerseyMullica Hill sits outside our named growing regions, so New Jersey as a whole is its closest context here.
Nearby growing guides