East Hartford, Connecticut, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
These conditions suit cabbage, hazelnut, lavender, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in East Hartford, 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 Hartford 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 Hartford — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
East Hartford — the short answer
East Hartford, Connecticut: USDA zone 6b, about 218 days between hard freezes, across 12K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 5
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~218
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 12K 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 Hartford's average, not your lot's — a low corner or a tree line moves it. Against East Hartford's 218-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in East Hartford
Each reading below is measured for East Hartford itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredEast Hartford runs about 218 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 Hartford 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 Hartford is in
East Hartford sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at East Hartford's own centroid rather than borrowed from Capitol Planning Region.
What Grows in East Hartford
Every plant below cleared East Hartford's own zone 6b and its 218-day season. Each card opens that plant's Connecticut profile. How we score.
Is it too late to plant in East Hartford?
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 4; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 1 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 5 — 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 East Hartford
Spotted lanternfly documented 9 miles from East Hartford, first recorded 2022. What to watch for.
What's on the federal record near East Hartford
Closest first, within ~10 miles of East Hartford. Listing isn't leaking, and distance isn't exposure.
- EAST HARTFORD VENTURE LLCBrownfields · 1400 ft
- EAST HARTFORD, TOWN OFBrownfields · 1600 ft
- CVS PHARMACY #0085Brownfields · 2600 ft
- PROMETHEAN SURGICAL DEVICES INCBrownfields · 0.8 mi
- KONICA BUSINESS MACHINES U S ABrownfields · 0.8 mi
- CT TRANSITBrownfields · 0.8 mi
- YANKEE KENWORTH HINO INCBrownfields · 0.8 mi
- EAST HARTFORD AEROMEDBrownfields · 0.8 mi
- EAST HARTFORD MAINTENANCE FACILITYUnderground Storage Tanks · 0.8 mi
- EASTERN ELECTRONICS MFG CORPToxics Release Inventory · 0.8 mi
- DOT CT STATE OFBrownfields · 0.8 mi
- MOBIL OIL 12656Underground Storage Tanks · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from East Hartford'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 Hartford.
Total Sites
2,715
within ~10 miles of East Hartford
Risk Level
Elevated
Highest-severity
27 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of East Hartford
Severity Distribution
within ~10 miles of East Hartford
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in East Hartford
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 Hartford average
Your land is one point inside East Hartford
Everything above resolves to East Hartford as a whole — one PHZM band and one 28°F frost record, read across 12K 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 Hartford Average
East Hartford Average
- ●USDA Zones 6b, averaged across East Hartford
- ●One soil character for all of East Hartford
- ●Frost dates read at East Hartford's scale: Apr 1 to Nov 5
YOUR Parcel
- ✓Your exact zone, not East Hartford's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in East Hartford
Pull a site-specific report for your exact address in East Hartford, Connecticut — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that East Hartford averages can't show:
We read public map data around East Hartford — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the East Hartford average
How we know this about East Hartford
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 Hartford’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 Hartford
When does frost risk typically end in East Hartford?
The last hard freeze (28°F) in East Hartford typically lands around Apr 1, 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 22.
When is the first frost in East Hartford?
The first hard freeze (28°F) in East Hartford typically arrives around Nov 5, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 22, so the watching starts about Oct 6 — about 218 days after the spring freeze cleared.
How long is the growing season in East Hartford?
Measured between 28°F hard freezes, East Hartford sees about 218 frost-free days — roughly Apr 1 through Nov 5, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 22 to Oct 22, about 183 days.
Is the soil safe to grow vegetables in East Hartford?
The federal record around East Hartford is a meaningful one — 2,715 documented sites, mostly Underground Storage Tanks entries (1,389), the nearest Brownfields 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 Hartford?
From about Oct 6 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 5 (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 5. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at East Hartford's scale — its 6b band and its 218-day season. Your yard writes its own version of East Hartford'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 Hartford’s own scale
7 of the readings below were taken at East Hartford's own scale — its own ~218-day season between 28°F freezes, the 11,524 acres it covers and 2,715 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- East Hartford's own USDA hardiness band, zones 6bUSDA PHZM 2023
- East Hartford's own 28°F hard-freeze dates, about Apr 1 and Nov 5 and the ~218-day span between themNOAA 1991–2020 Climate Normals
- 2,715 documented contamination sites on the federal record near East Hartford, the closest Brownfields record about 0.3 miles out from the town centreFederal environmental registers
- East Hartford's boundary and the 11,524 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~218-day seasonGrowable Ground crop-matching engine
- The ecoregion at East Hartford's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of East Hartfordlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so East Hartford's 11,524 acres read through its county's SSURGO summaryfrom Capitol County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Capitol 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 Capitol County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among East Hartford's 11,524 acreswhy one lot differs from the next →
- Which side of East Hartford you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 11,524 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 East Hartford-wide figureread your own land →