West Wareham, Massachusetts, sits in USDA hardiness zone 7a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Expect cabbage, pawpaw, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
You’re in South Shore
The coastal band south of Boston into old cranberry country — sandy, acidic ground and a maritime season that runs a touch longer than the interior. Bog and shoreline shape what has always grown well down here.
Even in West Wareham, 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 West Wareham 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 West Wareham — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
West Wareham — the short answer
West Wareham, Massachusetts: USDA zone 7a, about 209 days between hard freezes, across 2K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 5
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~209
- 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 7a is West Wareham's average, not your lot's — a low corner or a tree line moves it. Against West Wareham's 209-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in West Wareham
Each reading below is measured for West Wareham itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredWest Wareham runs about 209 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
MeasuredWest Wareham 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 West Wareham is in
West Wareham sits in the Atlantic Coastal Pine Barrens — EPA Level III, inside the wider Eastern Temperate Forests. That is read at West Wareham's own centroid, and it is not what its county reads: Plymouth County is mostly Northeastern Coastal Zone. The wider page above you is answering a different question about different ground.
What Grows in West Wareham
Every plant below cleared West Wareham's own zone 7a and its 209-day season. Each card opens that plant's Massachusetts profile. How we score.






























Is it too late to plant in West Wareham?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 13; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 10 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 5 — 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 West Wareham
Spotted lanternfly documented 11 miles from West Wareham, first recorded 2023. What to watch for.
What's on the federal record near West Wareham
Closest first, within ~10 miles of West Wareham. Listing isn't leaking, and distance isn't exposure.
- AUTO CENTERBrownfields · 1500 ft
- CUMBERLAND FARMS #2460Underground Storage Tanks · 2400 ft
- GREENTREE ESTATESBrownfields · 2400 ft
- CUMBERLAND FARMS SERVICE STATIONBrownfields · 2400 ft
- MOBIL 1 LUBE EXPRESSBrownfields · 2600 ft
- WALECKA STORAGE WHSE OF WAREHAMUnderground Storage Tanks · 0.5 mi
- ALGONQUIN GAS PIPELINE VALVE #G83Brownfields · 0.5 mi
- FRANCONIA AUTO BODY INCBrownfields · 0.5 mi
- SUPREME MOTORS CORPBrownfields · 0.6 mi
- CALORIQUE LLCBrownfields · 0.6 mi
- PILGRIM RUBBISH COUnderground Storage Tanks · 0.6 mi
- STANDEX ELECTRONICSBrownfields · 0.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from West Wareham'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 West Wareham.
Total Sites
645
within ~10 miles of West Wareham
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of West Wareham
Severity Distribution
within ~10 miles of West Wareham
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around West Wareham, PFAS runs higher than the national average — 10 sites within ~10 miles of West Wareham. 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.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in West Wareham
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 West Wareham average
Your land is one point inside West Wareham
Everything above resolves to West Wareham 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 West Wareham Average
West Wareham Average
- ●USDA Zones 7a, averaged across West Wareham
- ●One soil character for all of West Wareham
- ●Frost dates read at West Wareham's scale: Apr 10 to Nov 5
YOUR Parcel
- ✓Your exact zone, not West Wareham's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in West Wareham
Pull a site-specific report for your exact address in West Wareham, Massachusetts — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that West Wareham averages can't show:
We read public map data around West Wareham — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the West Wareham average
How we know this about West Wareham
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 West Wareham’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 West Wareham
When does frost risk typically end in West Wareham?
The last hard freeze (28°F) in West Wareham typically lands around Apr 10, 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 1.
When is the first frost in West Wareham?
The first hard freeze (28°F) in West Wareham typically arrives around Nov 5, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 22, so the watching starts about Oct 6 — about 209 days after the spring freeze cleared.
How long is the growing season in West Wareham?
Measured between 28°F hard freezes, West Wareham sees about 209 frost-free days — roughly Apr 10 through Nov 5, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 1 to Oct 22, about 174 days.
Is the soil safe to grow vegetables in West Wareham?
The federal record around West Wareham is a meaningful one — 645 documented sites, mostly Brownfields entries (301), the nearest Brownfields record about 0.3 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 West Wareham?
From about Oct 6 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 5 (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 5. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at West Wareham's scale — its 7a band and its 209-day season. Your yard writes its own version of West Wareham'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 West Wareham’s own scale
7 of the readings below were taken at West Wareham's own scale — its own ~209-day season between 28°F freezes, the 2,388 acres it covers and 645 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- West Wareham's own USDA hardiness band, zones 7aUSDA PHZM 2023
- West Wareham's own 28°F hard-freeze dates, about Apr 10 and Nov 5 and the ~209-day span between themNOAA 1991–2020 Climate Normals
- 645 documented contamination sites on the federal record near West Wareham, the closest Brownfields record about 0.3 miles out from the town centreFederal environmental registers
- West Wareham's boundary and the 2,388 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~209-day seasonGrowable Ground crop-matching engine
- West Wareham sits in the Atlantic Coastal Pine Barrens — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of West Warehamlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so West Wareham's 2,388 acres read through its county's SSURGO summaryfrom Plymouth County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Plymouth County
- The growing challenges every Massachusetts grower plans around — written at state scale, so they stay on the state guidefrom Massachusetts
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Plymouth County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among West Wareham's 2,388 acreswhy one lot differs from the next →
- Which side of West Wareham you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,388 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 West Wareham-wide figureread your own land →
