East Hampton, Connecticut, sits in USDA hardiness zone 6b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Crops well matched to these conditions include cabbage, hazelnut, lavender, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in East Hampton, 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 East Hampton 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 East Hampton — soil, climate, flood, and parcel records. How we handle your address.
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East Hampton — the short answer
East Hampton, Connecticut: USDA zone 6b, about 201 days between hard freezes, across 3K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~201
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 3K 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 6b is East Hampton's average, not your lot's — a low corner or a tree line moves it. Against East Hampton's 201-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in East Hampton
Each reading below is measured for East Hampton itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredEast Hampton runs about 201 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
MeasuredEast Hampton sits in USDA hardiness zone 6b.
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 East Hampton is in
East Hampton sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at East Hampton's own centroid rather than borrowed from Lower Connecticut River Valley Planning Region.
What Grows in East Hampton
Every plant below cleared East Hampton's own zone 6b and its 201-day season. Each card opens that plant's Connecticut profile. How we score.
Is it too late to plant in East Hampton?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 13; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 10 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 28 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around East Hampton
Spotted lanternfly documented 3 miles from East Hampton, first recorded 2023. What to watch for.
What's on the federal record near East Hampton
Closest first, within ~10 miles of East Hampton. Listing isn't leaking, and distance isn't exposure.
- MEMORIAL SCHOOLUnderground Storage Tanks · 1700 ft
- CT- EHM 411Nitrate · 0.6 mi
- EAST HAMPTON C.O. #7631Underground Storage Tanks · 0.8 mi
- BEVIN BROTHERS MANUFACTURINGBrownfields · 0.9 mi
- BEVIN BROTHERS MANUFACTURINGToxics Release Inventory · 0.9 mi
- G & S SERVICE INC.Underground Storage Tanks · 0.9 mi
- J. C. BARTON CO.Underground Storage Tanks · 0.9 mi
- CVS PHARMACY 4149Brownfields · 1.0 mi
- CLASSIC AUTOBrownfields · 1.1 mi
- TOTAL AUTO MARTUnderground Storage Tanks · 1.1 mi
- EAST HAMPTON MOTORS, INC.Underground Storage Tanks · 1.1 mi
- FORMER COBALT A-1Underground Storage Tanks · 1.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from East Hampton'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 East Hampton.
Total Sites
735
within ~10 miles of East Hampton
Risk Level
Elevated
Highest-severity
8 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of East Hampton
Severity Distribution
within ~10 miles of East Hampton
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around East Hampton, Mining runs higher than the national average — 42 sites within ~10 miles of East Hampton. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in East Hampton
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 East Hampton average
Your land is one point inside East Hampton
Everything above resolves to East Hampton as a whole — one PHZM band and one 28°F frost record, read across 3K 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 East Hampton Average
East Hampton Average
- ●USDA Zones 6b, averaged across East Hampton
- ●One soil character for all of East Hampton
- ●Frost dates read at East Hampton's scale: Apr 10 to Oct 28
YOUR Parcel
- ✓Your exact zone, not East Hampton's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in East Hampton
Pull a site-specific report for your exact address in East Hampton, Connecticut — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that East Hampton averages can't show:
We read public map data around East Hampton — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the East Hampton average
How we know this about East Hampton
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 East Hampton’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 East Hampton
When does frost risk typically end in East Hampton?
The last hard freeze (28°F) in East Hampton typically lands around Apr 10, 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 1.
When is the first frost in East Hampton?
The first hard freeze (28°F) in East Hampton typically arrives around Oct 28, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 14, so the watching starts about Sep 28 — about 201 days after the spring freeze cleared.
How long is the growing season in East Hampton?
Measured between 28°F hard freezes, East Hampton sees about 201 frost-free days — roughly Apr 10 through Oct 28, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 1 to Oct 14, about 166 days.
Is the soil safe to grow vegetables in East Hampton?
The federal record around East Hampton is a meaningful one — 735 documented sites, mostly Underground Storage Tanks entries (357), the nearest Underground Storage Tanks record about 0.3 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 East Hampton?
From about Sep 28 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 28 (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 28. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at East Hampton's scale — its 6b band and its 201-day season. Your yard writes its own version of East Hampton'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 East Hampton’s own scale
7 of the readings below were taken at East Hampton's own scale — its own ~201-day season between 28°F freezes, the 2,592 acres it covers and 735 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- East Hampton's own USDA hardiness band, zones 6bUSDA PHZM 2023
- East Hampton's own 28°F hard-freeze dates, about Apr 10 and Oct 28 and the ~201-day span between themNOAA 1991–2020 Climate Normals
- 735 documented contamination sites on the federal record near East Hampton, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- East Hampton's boundary and the 2,592 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~201-day seasonGrowable Ground crop-matching engine
- The ecoregion at East Hampton's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of East Hamptonlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so East Hampton's 2,592 acres read through its county's SSURGO summaryfrom Lower Connecticut River Valley County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Lower Connecticut River Valley 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 Lower Connecticut River Valley County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among East Hampton's 2,592 acreswhy one lot differs from the next →
- Which side of East Hampton you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,592 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 East Hampton-wide figureread your own land →