Redding Center, Connecticut, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
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 Redding Center, 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 Redding Center 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 Redding Center — soil, climate, flood, and parcel records. How we handle your address.
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Redding Center — the short answer
Redding Center, Connecticut: USDA zone 6b, about 210 days between hard freezes, across 441 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 5
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~210
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 441 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 Redding Center's average, not your lot's — a low corner or a tree line moves it. Against Redding Center's 210-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Redding Center
Each reading below is measured for Redding Center itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRedding Center runs about 210 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
MeasuredRedding Center 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 Redding Center is in
Redding Center sits in the Northeastern Coastal Zone — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Redding Center's own centroid rather than borrowed from Western Connecticut Planning Region.
What Grows in Redding Center
Every plant below cleared Redding Center's own zone 6b and its 210-day season. Each card opens that plant's Connecticut profile. How we score.
Is it too late to plant in Redding Center?
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 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 5 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 1 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around Redding Center
Spotted lanternfly documented 6 miles from Redding Center, first recorded 2021. What to watch for.
What's on the federal record near Redding Center
Closest first, within ~10 miles of Redding Center. Listing isn't leaking, and distance isn't exposure.
- GILBERT & BENNETTUnderground Storage Tanks · 1000 ft
- REDDING HIGHWAY DEPARTMENTUnderground Storage Tanks · 1100 ft
- Redding Country ClubUnderground Storage Tanks · 1200 ft
- GEORGETOWN CENTRAL OFFICE (3331)Underground Storage Tanks · 1200 ft
- NAZZARO CONTRACTING YARDUnderground Storage Tanks · 1200 ft
- PUTNAM MEMORIAL STATE PARKUnderground Storage Tanks · 1200 ft
- GEORGETOWN DAIRYTOWNUnderground Storage Tanks · 1200 ft
- WILBUR LEACHUnderground Storage Tanks · 1200 ft
- SNET REDDING CO (3351)Underground Storage Tanks · 1200 ft
- GEORGETOWN FOREIGN CAR SERVICEUnderground Storage Tanks · 1200 ft
- CT-RD 39Nitrate · 0.6 mi
- DANBURY CARTING CO INCBrownfields · 1.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Redding Center'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 Redding Center.
Total Sites
1,182
within ~10 miles of Redding Center
Risk Level
Elevated
Highest-severity
17 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Redding Center
Severity Distribution
within ~10 miles of Redding Center
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Redding Center, Superfund runs higher than the national average — 17 sites within ~10 miles of Redding Center. 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 Redding Center
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 Redding Center average
Your land is one point inside Redding Center
Everything above resolves to Redding Center as a whole — one PHZM band and one 28°F frost record, read across 441 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 Redding Center Average
Redding Center Average
- ●USDA Zones 6b, averaged across Redding Center
- ●One soil character for all of Redding Center
- ●Frost dates read at Redding Center's scale: Apr 5 to Nov 1
YOUR Parcel
- ✓Your exact zone, not Redding Center's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Redding Center
Pull a site-specific report for your exact address in Redding Center, Connecticut — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Redding Center averages can't show:
We read public map data around Redding Center — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Redding Center average
How we know this about Redding Center
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 Redding Center’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 Redding Center
When does frost risk typically end in Redding Center?
The last hard freeze (28°F) in Redding Center typically lands around Apr 5, 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 26.
When is the first frost in Redding Center?
The first hard freeze (28°F) in Redding Center typically arrives around Nov 1, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 18, so the watching starts about Oct 2 — about 210 days after the spring freeze cleared.
How long is the growing season in Redding Center?
Measured between 28°F hard freezes, Redding Center sees about 210 frost-free days — roughly Apr 5 through Nov 1, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 26 to Oct 18, about 175 days.
Is the soil safe to grow vegetables in Redding Center?
The federal record around Redding Center is a meaningful one — 1,182 documented sites, mostly Underground Storage Tanks entries (484), 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 Redding Center?
From about Oct 2 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 1 (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 1. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Redding Center's scale — its 6b band and its 210-day season. Your yard writes its own version of Redding Center'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 Redding Center’s own scale
7 of the readings below were taken at Redding Center's own scale — its own ~210-day season between 28°F freezes, the 441 acres it covers and 1,182 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Redding Center's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Redding Center's own 28°F hard-freeze dates, about Apr 5 and Nov 1 and the ~210-day span between themNOAA 1991–2020 Climate Normals
- 1,182 documented contamination sites on the federal record near Redding Center, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Redding Center's boundary and the 441 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~210-day seasonGrowable Ground crop-matching engine
- The ecoregion at Redding Center's own centroid, the Northeastern Coastal ZoneUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Redding Centerlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Redding Center's 441 acres read through its county's SSURGO summaryfrom Western Connecticut County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Western 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 Western Connecticut County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Redding Center's 441 acreswhy one lot differs from the next →
- Which side of Redding Center you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 441 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 Redding Center-wide figureread your own land →
More in Connecticut
Wider growing context
What grows across ConnecticutRedding Center sits outside our named growing regions, so Connecticut as a whole is its closest context here.
Nearby growing guides