Northville, New York, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Among the crops suited to this profile: cabbage, hazelnut, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Northville, 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 Northville 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 Northville — soil, climate, flood, and parcel records. How we handle your address.
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Northville — the short answer
Northville, New York: USDA zone 7a, about 220 days between hard freezes, across 5K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 4
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~220
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 5K 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 Northville's average, not your lot's — a low corner or a tree line moves it. Against Northville's 220-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Northville
Each reading below is measured for Northville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredNorthville runs about 220 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
MeasuredNorthville 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 Northville is in
Northville sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Northville's own centroid, and it is not what its county reads: Suffolk County is mostly Atlantic Coastal Pine Barrens. The wider page above you is answering a different question about different ground.
What Grows in Northville
Every plant below cleared Northville's own zone 7a and its 220-day season. Each card opens that plant's New York profile. How we score.
Is it too late to plant in Northville?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 4 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 10 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Northville
Spotted lanternfly documented 2 miles from Northville, first recorded 2022. What to watch for.
What's on the federal record near Northville
Closest first, within ~10 miles of Northville. Listing isn't leaking, and distance isn't exposure.
- RIVERHEAD TERMINAL-CONOCOPHILLIPSToxics Release Inventory · 0.7 mi
- RIVERHEAD TERMINAL-CONOCOPHILLIPSBrownfields · 0.7 mi
- S 51587. 1Nitrate · 0.7 mi
- S 51568. 1Nitrate · 1.0 mi
- S 50399. 1Nitrate · 1.3 mi
- AMP-AKZO CORP PROPERTYToxics Release Inventory · 1.4 mi
- AMP-AKZO CORP PROPERTYBrownfields · 1.4 mi
- S 51322. 1Nitrate · 1.4 mi
- S 15015. 1Nitrate · 1.5 mi
- S 137731, NYNitrate · 1.6 mi
- S 137732, NYNitrate · 1.7 mi
- S 33073. 1Nitrate · 1.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Northville'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 Northville.
Total Sites
437
within ~10 miles of Northville
Risk Level
Elevated
Highest-severity
5 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Northville
Severity Distribution
within ~10 miles of Northville
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Northville, Nitrate runs higher than the national average — 290 sites within ~10 miles of Northville. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Northville
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 Northville average
Your land is one point inside Northville
Everything above resolves to Northville as a whole — one PHZM band and one 28°F frost record, read across 5K 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 Northville Average
Northville Average
- ●USDA Zones 7a, averaged across Northville
- ●One soil character for all of Northville
- ●Frost dates read at Northville's scale: Apr 4 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Northville's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Northville
Pull a site-specific report for your exact address in Northville, New York — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Northville averages can't show:
We read public map data around Northville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Northville average
How we know this about Northville
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 Northville’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 Northville
When does frost risk typically end in Northville?
The last hard freeze (28°F) in Northville typically lands around Apr 4, 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 25.
When is the first frost in Northville?
The first hard freeze (28°F) in Northville typically arrives around Nov 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 27, so the watching starts about Oct 11 — about 220 days after the spring freeze cleared.
How long is the growing season in Northville?
Measured between 28°F hard freezes, Northville sees about 220 frost-free days — roughly Apr 4 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 25 to Oct 27, about 185 days.
Is the soil safe to grow vegetables in Northville?
The federal record around Northville is a meaningful one — 437 documented sites, mostly Nitrate entries (290), the nearest Toxics Release Inventory record about 0.7 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 Northville?
From about Oct 11 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 10 (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 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Northville's scale — its 7a band and its 220-day season. Your yard writes its own version of Northville'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 Northville’s own scale
7 of the readings below were taken at Northville's own scale — its own ~220-day season between 28°F freezes, the 4,735 acres it covers and 437 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Northville's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Northville's own 28°F hard-freeze dates, about Apr 4 and Nov 10 and the ~220-day span between themNOAA 1991–2020 Climate Normals
- 437 documented contamination sites on the federal record near Northville, the closest Toxics Release Inventory record about 0.7 miles out from the town centreFederal environmental registers
- Northville's boundary and the 4,735 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~220-day seasonGrowable Ground crop-matching engine
- Northville sits in the Northeastern Coastal Zone — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Northvillelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Northville's 4,735 acres read through its county's SSURGO summaryfrom Suffolk County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Suffolk County
- The growing challenges every New York grower plans around — written at state scale, so they stay on the state guidefrom New York
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Suffolk County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Northville's 4,735 acreswhy one lot differs from the next →
- Which side of Northville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,735 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Toxics Release Inventory record about 0.7 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 Northville-wide figureread your own land →
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