Ocean Bluff-Brant Rock, Massachusetts, sits in USDA hardiness zone 7a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Reliable performers under these conditions include cabbage, hazelnut, california poppy, and collard greens; what your own ground favors still comes down to its 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 Ocean Bluff-Brant Rock, 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 Ocean Bluff-Brant Rock 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 Ocean Bluff-Brant Rock — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Ocean Bluff-Brant Rock — the short answer
Ocean Bluff-Brant Rock, Massachusetts: USDA zone 7a, about 225 days between hard freezes, across 1K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 2
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 13
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~225
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 Ocean Bluff-Brant Rock's average, not your lot's — a low corner or a tree line moves it. Against Ocean Bluff-Brant Rock's 225-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Ocean Bluff-Brant Rock
Each reading below is measured for Ocean Bluff-Brant Rock itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredOcean Bluff-Brant Rock runs about 225 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
MeasuredOcean Bluff-Brant Rock 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 Ocean Bluff-Brant Rock is in
Ocean Bluff-Brant Rock sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Ocean Bluff-Brant Rock's own centroid rather than borrowed from Plymouth County.
What Grows in Ocean Bluff-Brant Rock
Every plant below cleared Ocean Bluff-Brant Rock's own zone 7a and its 225-day season. Each card opens that plant's Massachusetts profile. How we score.






























Is it too late to plant in Ocean Bluff-Brant Rock?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 5; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 2 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 13 — 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 Ocean Bluff-Brant Rock
Spotted lanternfly documented 15 miles from Ocean Bluff-Brant Rock, first recorded 2023. What to watch for.
What's on the federal record near Ocean Bluff-Brant Rock
Closest first, within ~10 miles of Ocean Bluff-Brant Rock. Listing isn't leaking, and distance isn't exposure.
- CLARKE A PHILLIPS JRUnderground Storage Tanks · 2300 ft
- EDWARD POMELLIUnderground Storage Tanks · 2500 ft
- Ocean Bluff Automotive, IncUnderground Storage Tanks · 0.6 mi
- MARINA HARBOR CORPBrownfields · 0.9 mi
- SHM GREEN HARBOR LLCBrownfields · 1.0 mi
- DENNIS G CROWLEYUnderground Storage Tanks · 1.0 mi
- SHORELINE AVIATIONBrownfields · 1.1 mi
- MARSHFIELD AIRPORTUnderground Storage Tanks · 1.1 mi
- MARSHFIELD WASTEWATER TREATMENT FACILITYBrownfields · 1.2 mi
- GREEN HARBOR MARINAUnderground Storage Tanks · 1.2 mi
- TAYLOR MARINEUnderground Storage Tanks · 1.5 mi
- TAYLOR MARINE CORPORATIONBrownfields · 1.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Ocean Bluff-Brant Rock'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 Ocean Bluff-Brant Rock.
Total Sites
538
within ~10 miles of Ocean Bluff-Brant Rock
Risk Level
Elevated
Highest-severity
1 Superfund site
Sources Checked
within ~10 miles of Ocean Bluff-Brant Rock
Severity Distribution
within ~10 miles of Ocean Bluff-Brant Rock
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Ocean Bluff-Brant Rock, two things run higher than the national average within ~10 miles of Ocean Bluff-Brant Rock — PFAS (7 sites) and Brownfields (311 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.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Ocean Bluff-Brant Rock
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 Ocean Bluff-Brant Rock average
Your land is one point inside Ocean Bluff-Brant Rock
Everything above resolves to Ocean Bluff-Brant Rock as a whole — one PHZM band and one 28°F frost record, read across 1K 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 Ocean Bluff-Brant Rock Average
Ocean Bluff-Brant Rock Average
- ●USDA Zones 7a, averaged across Ocean Bluff-Brant Rock
- ●One soil character for all of Ocean Bluff-Brant Rock
- ●Frost dates read at Ocean Bluff-Brant Rock's scale: Apr 2 to Nov 13
YOUR Parcel
- ✓Your exact zone, not Ocean Bluff-Brant Rock's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Ocean Bluff-Brant Rock
Pull a site-specific report for your exact address in Ocean Bluff-Brant Rock, Massachusetts — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Ocean Bluff-Brant Rock averages can't show:
We read public map data around Ocean Bluff-Brant Rock — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Ocean Bluff-Brant Rock average
How we know this about Ocean Bluff-Brant Rock
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 Ocean Bluff-Brant Rock’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 Ocean Bluff-Brant Rock
When does frost risk typically end in Ocean Bluff-Brant Rock?
The last hard freeze (28°F) in Ocean Bluff-Brant Rock typically lands around Apr 2, 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 23.
When is the first frost in Ocean Bluff-Brant Rock?
The first hard freeze (28°F) in Ocean Bluff-Brant Rock typically arrives around Nov 13, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 30, so the watching starts about Oct 14 — about 225 days after the spring freeze cleared.
How long is the growing season in Ocean Bluff-Brant Rock?
Measured between 28°F hard freezes, Ocean Bluff-Brant Rock sees about 225 frost-free days — roughly Apr 2 through Nov 13, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 23 to Oct 30, about 190 days.
Is the soil safe to grow vegetables in Ocean Bluff-Brant Rock?
The federal record around Ocean Bluff-Brant Rock is a meaningful one — 538 documented sites, mostly Brownfields entries (311), the nearest Underground Storage Tanks 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 Ocean Bluff-Brant Rock?
From about Oct 14 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 13 (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 13. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Ocean Bluff-Brant Rock's scale — its 7a band and its 225-day season. Your yard writes its own version of Ocean Bluff-Brant Rock'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 Ocean Bluff-Brant Rock’s own scale
7 of the readings below were taken at Ocean Bluff-Brant Rock's own scale — its own ~225-day season between 28°F freezes, the 1,392 acres it covers and 538 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Ocean Bluff-Brant Rock's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Ocean Bluff-Brant Rock's own 28°F hard-freeze dates, about Apr 2 and Nov 13 and the ~225-day span between themNOAA 1991–2020 Climate Normals
- 538 documented contamination sites on the federal record near Ocean Bluff-Brant Rock, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Ocean Bluff-Brant Rock's boundary and the 1,392 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~225-day seasonGrowable Ground crop-matching engine
- The ecoregion at Ocean Bluff-Brant Rock's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Ocean Bluff-Brant Rocklydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Ocean Bluff-Brant Rock's 1,392 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 Ocean Bluff-Brant Rock's 1,392 acreswhy one lot differs from the next →
- Which side of Ocean Bluff-Brant Rock you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,392 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Ocean Bluff-Brant Rock-wide figureread your own land →
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