North Seekonk, 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.
Among the crops suited to this profile: cabbage, hazelnut, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
You’re in Southeastern Massachusetts
The low coastal plain of the South Coast — mild, moist, and worked for market vegetables and small orchards for generations. One of the gentler corners of the Massachusetts growing map.
Even in North Seekonk, 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 North Seekonk 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 North Seekonk — soil, climate, flood, and parcel records. How we handle your address.
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North Seekonk — the short answer
North Seekonk, Massachusetts: USDA zone 7a, about 224 days between hard freezes, across 895 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 9
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~224
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 895 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 North Seekonk's average, not your lot's — a low corner or a tree line moves it. Against North Seekonk's 224-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in North Seekonk
Each reading below is measured for North Seekonk itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredNorth Seekonk runs about 224 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
MeasuredNorth Seekonk 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 North Seekonk is in
North Seekonk sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at North Seekonk's own centroid rather than borrowed from Bristol County.
What Grows in North Seekonk
Every plant below cleared North Seekonk's own zone 7a and its 224-day season. Each card opens that plant's Massachusetts profile. How we score.
Is it too late to plant in North Seekonk?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 2; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 30 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 9 — 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 North Seekonk
Spotted lanternfly documented 4 miles from North Seekonk, first recorded 2022. What to watch for.
What's on the federal record near North Seekonk
Closest first, within ~10 miles of North Seekonk. Listing isn't leaking, and distance isn't exposure.
- CVS PHARMACY 0394Brownfields · 1500 ft
- SPEEDWAY 0240Brownfields · 1500 ft
- SPEEDWAY #2420Underground Storage Tanks · 1700 ft
- JOHN'S ARCOUnderground Storage Tanks · 1800 ft
- GM INDUSTRIES INCUnderground Storage Tanks · 2100 ft
- GM INDUSTRIES INCToxics Release Inventory · 2200 ft
- GM INDUSTRIES INCBrownfields · 2200 ft
- R&L CARRIERSBrownfields · 2200 ft
- PAWTUCKET COUNTRY CLUBUnderground Storage Tanks · 2400 ft
- CONGDON & CARPENTER COUnderground Storage Tanks · 2600 ft
- JARVIS TRANS INCUnderground Storage Tanks · 0.5 mi
- DOLLAR GENERAL #20343Brownfields · 0.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from North Seekonk'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 North Seekonk.
Sources Checked
within ~10 miles of North Seekonk
Severity Distribution
within ~10 miles of North Seekonk
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around North Seekonk, two things run higher than the national average within ~10 miles of North Seekonk — Toxics Release Inventory (320 sites) and Superfund (49 sites). That's not a problem with your land — it's information about it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in North Seekonk
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 North Seekonk average
Your land is one point inside North Seekonk
Everything above resolves to North Seekonk as a whole — one PHZM band and one 28°F frost record, read across 895 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 North Seekonk Average
North Seekonk Average
- ●USDA Zones 7a, averaged across North Seekonk
- ●One soil character for all of North Seekonk
- ●Frost dates read at North Seekonk's scale: Mar 30 to Nov 9
YOUR Parcel
- ✓Your exact zone, not North Seekonk's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in North Seekonk
Pull a site-specific report for your exact address in North Seekonk, Massachusetts — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that North Seekonk averages can't show:
We read public map data around North Seekonk — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the North Seekonk average
How we know this about North Seekonk
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 North Seekonk’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 North Seekonk
When does frost risk typically end in North Seekonk?
The last hard freeze (28°F) in North Seekonk typically lands around Mar 30, 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 20.
When is the first frost in North Seekonk?
The first hard freeze (28°F) in North Seekonk typically arrives around Nov 9, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 26, so the watching starts about Oct 10 — about 224 days after the spring freeze cleared.
How long is the growing season in North Seekonk?
Measured between 28°F hard freezes, North Seekonk sees about 224 frost-free days — roughly Mar 30 through Nov 9, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 20 to Oct 26, about 189 days.
Is the soil safe to grow vegetables in North Seekonk?
The federal record around North Seekonk runs heavier than most — 3,806 documented sites, mostly Underground Storage Tanks entries (1,804), the nearest Brownfields 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 North Seekonk?
From about Oct 10 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 9 (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 9. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at North Seekonk's scale — its 7a band and its 224-day season. Your yard writes its own version of North Seekonk'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 North Seekonk’s own scale
7 of the readings below were taken at North Seekonk's own scale — its own ~224-day season between 28°F freezes, the 895 acres it covers and 3,806 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- North Seekonk's own USDA hardiness band, zones 7aUSDA PHZM 2023
- North Seekonk's own 28°F hard-freeze dates, about Mar 30 and Nov 9 and the ~224-day span between themNOAA 1991–2020 Climate Normals
- 3,806 documented contamination sites on the federal record near North Seekonk, the closest Brownfields record about 0.3 miles out from the town centreFederal environmental registers
- North Seekonk's boundary and the 895 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~224-day seasonGrowable Ground crop-matching engine
- The ecoregion at North Seekonk's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of North Seekonklydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so North Seekonk's 895 acres read through its county's SSURGO summaryfrom Bristol County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Bristol 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 Bristol County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among North Seekonk's 895 acreswhy one lot differs from the next →
- Which side of North Seekonk you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 895 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 North Seekonk-wide figureread your own land →