Lakeville, Connecticut, sits in USDA hardiness zone 6a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
These conditions suit cabbage, blackberry, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Lakeville, 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 Lakeville 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 Lakeville — soil, climate, flood, and parcel records. How we handle your address.
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Lakeville — the short answer
Lakeville, Connecticut: USDA zone 6a, about 175 days between hard freezes, across 2K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~175
- 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 6a is Lakeville's average, not your lot's — a low corner or a tree line moves it. Against Lakeville's 175-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lakeville
Each reading below is measured for Lakeville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLakeville runs about 175 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredLakeville sits in USDA hardiness zone 6a.
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 Lakeville is in
Lakeville sits in the Northeastern Highlands — EPA Level III, inside the wider Northern Forests. That is read at Lakeville's own centroid rather than borrowed from Northwest Hills Planning Region.
What Grows in Lakeville
Every plant below cleared Lakeville's own zone 6a and its 175-day season. Each card opens that plant's Connecticut profile. How we score.
Is it too late to plant in Lakeville?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 29; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 26 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 18 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
Documented around Lakeville
Spotted lanternfly documented 18 miles from Lakeville, first recorded 2021. What to watch for.
What's on the federal record near Lakeville
Closest first, within ~10 miles of Lakeville. Listing isn't leaking, and distance isn't exposure.
- OTTAVIO LORENZOUnderground Storage Tanks · 1100 ft
- ARNOFF MVG AND STORAGE INCUnderground Storage Tanks · 1100 ft
- RICHARD E. McCUE GENERAL CONTRACTORUnderground Storage Tanks · 1100 ft
- CAMP SLOANE, INC.Underground Storage Tanks · 1100 ft
- Lime Rock ParkUnderground Storage Tanks · 1100 ft
- 120-126 LIME ROCK ROADUnderground Storage Tanks · 1100 ft
- LAKEVILLE PATCO HANDY SHOPUnderground Storage Tanks · 1200 ft
- AQUARION WATER COMPANY OF CONNECTICUTBrownfields · 1900 ft
- CT-SY 20Nitrate · 2100 ft
- CT-SY 5Nitrate · 0.6 mi
- SKIP BARBER RACINGBrownfields · 0.9 mi
- HOTCHKISS SCHOOLUnderground Storage Tanks · 1.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Lakeville'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 Lakeville.
Total Sites
293
within ~10 miles of Lakeville
Risk Level
Elevated
Highest-severity
5 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Lakeville
Severity Distribution
within ~10 miles of Lakeville
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Lakeville, Nitrate runs higher than the national average — 108 sites within ~10 miles of Lakeville. 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 Lakeville
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 Lakeville average
Your land is one point inside Lakeville
Everything above resolves to Lakeville 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 Lakeville Average
Lakeville Average
- ●USDA Zones 6a, averaged across Lakeville
- ●One soil character for all of Lakeville
- ●Frost dates read at Lakeville's scale: Apr 26 to Oct 18
YOUR Parcel
- ✓Your exact zone, not Lakeville's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lakeville
Pull a site-specific report for your exact address in Lakeville, Connecticut — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lakeville averages can't show:
We read public map data around Lakeville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lakeville average
How we know this about Lakeville
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 Lakeville’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 Lakeville
When does frost risk typically end in Lakeville?
The last hard freeze (28°F) in Lakeville typically lands around Apr 26, 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 17.
When is the first frost in Lakeville?
The first hard freeze (28°F) in Lakeville typically arrives around Oct 18, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 4, so the watching starts about Sep 18 — about 175 days after the spring freeze cleared.
How long is the growing season in Lakeville?
Measured between 28°F hard freezes, Lakeville sees about 175 frost-free days — roughly Apr 26 through Oct 18, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 17 to Oct 4, about 140 days.
Is the soil safe to grow vegetables in Lakeville?
The federal record around Lakeville is a meaningful one — 293 documented sites, mostly Underground Storage Tanks entries (116), the nearest Underground Storage Tanks record about 0.2 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 Lakeville?
From about Sep 18 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 Oct 18 (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 Oct 18. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Lakeville's scale — its 6a band and its 175-day season. Your yard writes its own version of Lakeville'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 Lakeville’s own scale
7 of the readings below were taken at Lakeville's own scale — its own ~175-day season between 28°F freezes, the 2,450 acres it covers and 293 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Lakeville's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Lakeville's own 28°F hard-freeze dates, about Apr 26 and Oct 18 and the ~175-day span between themNOAA 1991–2020 Climate Normals
- 293 documented contamination sites on the federal record near Lakeville, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Lakeville's boundary and the 2,450 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~175-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lakeville's own centroid, the Northeastern HighlandsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Lakevillelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Lakeville's 2,450 acres read through its county's SSURGO summaryfrom Northwest Hills County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Northwest Hills County
- The growing challenges every Connecticut grower plans around — written at state scale, so they stay on the state guidefrom Connecticut
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Northwest Hills County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lakeville's 2,450 acreswhy one lot differs from the next →
- Which side of Lakeville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,450 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Lakeville-wide figureread your own land →