Oxoboxo River, Connecticut, sits in USDA hardiness zone 6b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Well-matched crops include cabbage, hazelnut, lavender, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Oxoboxo River, 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 Oxoboxo River 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 Oxoboxo River — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Oxoboxo River — the short answer
Oxoboxo River, Connecticut: USDA zone 6b, about 214 days between hard freezes, across 3K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 2
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 2
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~214
- 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 Oxoboxo River's average, not your lot's — a low corner or a tree line moves it. Against Oxoboxo River's 214-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Oxoboxo River
Each reading below is measured for Oxoboxo River itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredOxoboxo River runs about 214 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
MeasuredOxoboxo River 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 Oxoboxo River is in
Oxoboxo River sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Oxoboxo River's own centroid rather than borrowed from Southeastern Connecticut Planning Region.
What Grows in Oxoboxo River
Every plant below cleared Oxoboxo River's own zone 6b and its 214-day season. Each card opens that plant's Connecticut profile. How we score.
Is it too late to plant in Oxoboxo River?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Mar 5; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 2 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 2 — 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 Oxoboxo River
Spotted lanternfly documented 6 miles from Oxoboxo River, first recorded 2022. What to watch for.
What's on the federal record near Oxoboxo River
Closest first, within ~10 miles of Oxoboxo River. Listing isn't leaking, and distance isn't exposure.
- MONTVILLE PUBLIC WORKS FACILITYUnderground Storage Tanks · 800 ft
- MONTVILLE MAINTENANCE GARAGEUnderground Storage Tanks · 850 ft
- CONNECTICUT SCRAP LLCBrownfields · 1700 ft
- RAND-WHITNEY CONTAINERBOARDBrownfields · 1900 ft
- BONVILLE BROTHERS, INC.Underground Storage Tanks · 2200 ft
- RYDER TRUCK RENTAL LOC. #1243AUnderground Storage Tanks · 2500 ft
- RAND-WHITNEY REALTY, LLCUnderground Storage Tanks · 0.6 mi
- B & D AUTO BODYBrownfields · 0.6 mi
- BRIDGE ST. PUMP HOUSEUnderground Storage Tanks · 0.8 mi
- MIDWAY MOBILUnderground Storage Tanks · 0.8 mi
- BELANGER'S AUTO SERVICEUnderground Storage Tanks · 0.8 mi
- WOODLAND DR. PUMP STATIONUnderground Storage Tanks · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Oxoboxo River'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 Oxoboxo River.
Total Sites
1,011
within ~10 miles of Oxoboxo River
Risk Level
Elevated
Highest-severity
18 Superfund sites
Sources Checked
within ~10 miles of Oxoboxo River
Severity Distribution
within ~10 miles of Oxoboxo River
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Oxoboxo River, Superfund runs higher than the national average — 18 sites within ~10 miles of Oxoboxo River. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Oxoboxo River
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 Oxoboxo River average
Your land is one point inside Oxoboxo River
Everything above resolves to Oxoboxo River 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 Oxoboxo River Average
Oxoboxo River Average
- ●USDA Zones 6b, averaged across Oxoboxo River
- ●One soil character for all of Oxoboxo River
- ●Frost dates read at Oxoboxo River's scale: Apr 2 to Nov 2
YOUR Parcel
- ✓Your exact zone, not Oxoboxo River's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Oxoboxo River
Pull a site-specific report for your exact address in Oxoboxo River, Connecticut — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Oxoboxo River averages can't show:
We read public map data around Oxoboxo River — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Oxoboxo River average
How we know this about Oxoboxo River
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 Oxoboxo River’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 Oxoboxo River
When does frost risk typically end in Oxoboxo River?
The last hard freeze (28°F) in Oxoboxo River typically lands around Apr 2, 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 23.
When is the first frost in Oxoboxo River?
The first hard freeze (28°F) in Oxoboxo River typically arrives around Nov 2, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 19, so the watching starts about Oct 3 — about 214 days after the spring freeze cleared.
How long is the growing season in Oxoboxo River?
Measured between 28°F hard freezes, Oxoboxo River sees about 214 frost-free days — roughly Apr 2 through Nov 2, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 23 to Oct 19, about 179 days.
Is the soil safe to grow vegetables in Oxoboxo River?
The federal record around Oxoboxo River is a meaningful one — 1,011 documented sites, mostly Underground Storage Tanks entries (533), 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 Oxoboxo River?
From about Oct 3 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 2 (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 2. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Oxoboxo River's scale — its 6b band and its 214-day season. Your yard writes its own version of Oxoboxo River'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 Oxoboxo River’s own scale
7 of the readings below were taken at Oxoboxo River's own scale — its own ~214-day season between 28°F freezes, the 2,723 acres it covers and 1,011 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Oxoboxo River's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Oxoboxo River's own 28°F hard-freeze dates, about Apr 2 and Nov 2 and the ~214-day span between themNOAA 1991–2020 Climate Normals
- 1,011 documented contamination sites on the federal record near Oxoboxo River, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Oxoboxo River's boundary and the 2,723 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~214-day seasonGrowable Ground crop-matching engine
- The ecoregion at Oxoboxo River's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Oxoboxo Riverlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Oxoboxo River's 2,723 acres read through its county's SSURGO summaryfrom Southeastern Connecticut County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Southeastern Connecticut 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 Southeastern Connecticut County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Oxoboxo River's 2,723 acreswhy one lot differs from the next →
- Which side of Oxoboxo River you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,723 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 Oxoboxo River-wide figureread your own land →
More in Connecticut
Wider growing context
What grows across ConnecticutOxoboxo River sits outside our named growing regions, so Connecticut as a whole is its closest context here.
Nearby growing guides