The North Shore spans USDA hardiness zone 6b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
The settled coast north of Boston — salt air, tidy town lots, and sea-tempered winters that hold the cold off a little longer than the hills inland. The conditions favor tomato, zucchini, kale, and garlic, among others — though every individual site edits that list with its own soil, sun, and drainage.
The North Shore spans Massachusetts.
Your yard isn't all of the North Shore.
The North Shore spans USDA zones 6b, but your parcel sits in exactly one — and slope, tree cover, and low spots nudge it further. 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 Shore — soil, climate, flood, and parcel records. How we handle your address.
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The North Shore — the short answer
The North Shore: USDA zones 6b, 212 frost-free days, in Massachusetts.
- USDA zones
- 6b
- USDA PHZM 2023, aggregated over the footprint
- Frost-free season
- 212 days
- NOAA Regional Climate Centers ACIS, 1991–2020
- Counties
- 1
- US Census TIGER/Line 2025
- Region type
- County cluster
- Growable Ground growing-region registry
Region boundary: Growable Ground growing-region registry — curated county clusters, EPA Level III ecoregions, and town clusters drawn finer than any county. Where a region publishes no measured season, no season figure is shown.
Hardiness Zone Range
What Grows in the North Shore
Plants matched to the North Shore's USDA zones 6b, ordered by how much hardiness margin each has across the region — the ones with room to spare at both ends of this band lead. Each links to its full growing profile.
Native Plants of the North Shore
Plants the USDA PLANTS Database documents as native and present in this region’s state, kept only where the published hardiness range meets the North Shore’s USDA zones 6b — closest range match first. Presence is recorded by state, so a plant can be documented across the state and still be scarce in your corner of the region.
The ground across the North Shore
The USDA soil survey maps this ground county by county. These are those records weighted by land area across one member county — this region’s own profile, not a state figure.
The ground is predominantly Inceptisols, at 66% of mapped acres, followed by Entisols (18%), Histosols (15%) and Spodosols (1%). The most extensive named soils are Canton, Paxton, and Freetown.
31% of those acres are well drained, and another 16% very poorly drained, 12% moderately well drained. Topsoil pH runs 4.6–5.5 in that county’s own record. 12% of the footprint is classed prime farmland.
Soil order
Inceptisols
Drainage
Well drained
Topsoil pH
4.6–5.5
Hydric soils
27%
Soil changes across a driveway, so which of these your own ground sits on is a parcel question rather than a regional one. soil types explained.
USDA NRCS SSURGO via Soil Data Access
What this means for growing in the North Shore
The soil survey reads this ground county by county, and the readings above are those records summed across the North Shore. Here is what they mean for a garden here — and the move an experienced grower makes about each one.
Drainage
From county records31% of the mapped acres across the North Shore are well drained — ground that drains quickly. That is area-weighted across its one mapped county.
The upside is soil you can work early in spring and roots that never drown; the cost is that fast-draining ground dries out fast and leaches nutrients away before plants can use them.
Work in compost and mulch to hold moisture and feed, and water more often in short doses than deep and rarely.
USDA NRCS SSURGO
Surface pH
From county recordsTopsoil across the North Shore runs pH 4.6–5.5 — acidic in the one record covering it.
Blueberries, potatoes, and rhododendrons thrive in it, but most vegetables start locking out nutrients below about pH 6.0 and grow pale and stunted no matter how much you feed them.
A measured lime application raises pH for the crops that need it — but test first, because the right rate depends on your own soil, not the county average.
USDA NRCS SSURGO
Wet ground
From county recordsAbout 27% of the ground across the North Shore is mapped as hydric — wetland — soil.
If your lot falls in one of those pockets, a standard in-ground bed will fight waterlogging all season, and roots that need air will struggle.
Check how your own ground drains before you dig; raised beds or moisture-loving plantings turn a wet corner from a problem into a niche.
USDA NRCS SSURGO
Safe to Grow Here?
What the federal record shows across the North Shore — and how to grow with it.
Across the North Shore's 1 county the federal record holds 3,658 documented sites, mostly Brownfields (2,184), Underground Storage Tanks (1,029) and Toxics Release Inventory (223). The heaviest single county is Essex County, with 3,658.
That is a regional count, not a reading of any one lot — proximity to a documented site is information, not a diagnosis. Open the map outlined to the North Shore to see which records sit where you actually grow.
Sources Checked
Summed across the county in the North Shore
A note from Gnorman
What an experienced grower watches for around here
In and around the North Shore, two things run higher than the national average across the county in the North Shore — Brownfields (2,184 sites) and Superfund (52 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
Your land is one point inside the North Shore
Everything above resolves to the North Shore as a whole — a footprint spanning USDA zones 6b. Your parcel sits in exactly one of them. 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 region 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 regional average.
Your Lot vs the North Shore Average
North Shore Average
- ●USDA Zones 6b, averaged across North Shore
- ●One soil character for all of North Shore
- ●State-average frost dates
YOUR Parcel
- ✓Your exact zone, not North Shore's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in the North Shore
Pull a site-specific report for your exact address in the North Shore — soil, sun, drainage, frost risk, contamination, and scored plant recommendations.
Three things about your lot that North Shore averages can't show:
We read public map data around The North Shore — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the North Shore average
How we know this about the North Shore
The boundary: a cluster of neighboring counties. Growing regions have no official boundary, so this footprint is our published one, and every figure on this page was measured over the counties inside it rather than borrowed from the state around it.
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, aggregated across the footprint; the growing season from NOAA Regional Climate Centers ACIS 1991–2020 28°F normals, read at each member’s own record; boundaries from US Census TIGER/Line 2025; the contamination record from the federal sources named in that beat above; the soil from the USDA NRCS SSURGO survey, read at each member county’s own record and weighted to this footprint by land area. Where a member carries no record of its own, it is absent from the figure rather than filled in.
Common questions about the North Shore
What hardiness zone is the North Shore?
The North Shore spans USDA hardiness zones 6b, aggregated from the USDA Agricultural Research Service Plant Hardiness Zone Map 2023 across the region's counties. Zones reflect average annual extreme minimum temperatures from 1991–2020 data.
What grows well in the North Shore?
The North Shore's conditions suit plants such as Tomato, Zucchini, Kale, Garlic, Blueberry, Sugar Maple. What actually thrives on any one site still turns on its specific soil, sun, and drainage — we score each plant against the real conditions at your address.
How is the North Shore defined?
The North Shore is defined here as a curated cluster of 1 neighboring counties that share a growing character. Growing regions have no official boundary, so this footprint is our published one — every county in it is named on this page.
Which states does the North Shore cover?
The North Shore spans Massachusetts. Each state's full growing guide is linked on this page.
What other growing regions cover the same states?
Cape Cod & the Islands, Greater Boston, Pioneer Valley, The Berkshires, Central Massachusetts, and South Shore share at least one state with the North Shore. Growing regions overlap and interlock — a single address can sit inside more than one, which is why the precise read is always the parcel, not the region.
What this page reads at the North Shore’s own scale
5 of the readings below were taken at the North Shore's own scale — the zone 6b band across its footprint and 3,658 documented federal contamination records across its one county, 3,658 of them in Essex County alone; one is borrowed from a wider read, named and linked below.
Measured here
- The USDA hardiness band 6b aggregated across the footprint's one countyUSDA PHZM 2023
- The boundary itself — the 1 county this region is curated fromGrowable Ground subregion registry
- The growing character that makes this region distinct from the states it crossesGrowable Ground subregion registry
- The federal contamination record over the whole footprint — 3,658 documented federal contamination records across its one county, 3,658 of them in Essex County aloneEPA, USGS and USDA federal site records
- The soil order mix across the footprint — 66% Inceptisols, topsoil pH 4.6–5.5, area-weighted across its one mapped countyUSDA NRCS SSURGO
Inherited from a wider read
- The candidate plant list — its state's curated sets, merged and filtered to zones 6bfrom Massachusetts
What this page can’t tell you
- Frost dates — they swing too far across a footprint this size to quote as one regional numberfrost dates explained →
- Which of those soils your own ground sits on — the survey maps them county-wide, and they change across a drivewaysoil types explained →
- The soil pH, drainage, sun hours, and frost pockets on one specific lotwhy one lot differs from the next →
Explore the North Shore
State growing guides
Counties in this region
Other growing regions across Massachusetts
A sandy, maritime-tempered peninsula and islands with acidic soils long worked for cranberries, beach plums, and salt-tolerant kitchen gardens.
The state's dense urban core, where growing means raised beds, community plots, and back-lot kitchen gardens more than open field — a long mild season, with city soil the thing to know before you dig.
The Connecticut River's broad valley floor and the richest farm ground in the state — deep alluvial soils and a warmer pocket than the hills on either side, long worked as market-garden and tobacco country.
Western Massachusetts' cool, hilly uplands of rocky glacial soils and a short season suited to apples, maples, and cold-hardy market gardens.
The inland heart of the state — rolling upland, cooler nights, a shorter season than the coast, and stony glacial soils that reward the gardener who feeds and drains them.
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.