Red Boiling Springs, Tennessee, sits in USDA hardiness zone 7a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
On paper, cabbage, hazelnut, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Red Boiling Springs, 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 Red Boiling Springs 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 Red Boiling Springs — soil, climate, flood, and parcel records. How we handle your address.
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Red Boiling Springs — the short answer
Red Boiling Springs, Tennessee: USDA zone 7a, about 231 days between hard freezes, across 1K acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~231
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 1K 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 7a is Red Boiling Springs's average, not your lot's — a low corner or a tree line moves it. Against Red Boiling Springs's 231-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Red Boiling Springs
Each reading below is measured for Red Boiling Springs itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRed Boiling Springs runs about 231 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
MeasuredRed Boiling Springs sits in USDA hardiness zone 7a.
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 Red Boiling Springs is in
Red Boiling Springs sits in the Interior Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Red Boiling Springs's own centroid rather than borrowed from Macon County.
What Grows in Red Boiling Springs
Every plant below cleared Red Boiling Springs's own zone 7a and its 231-day season. Each card opens that plant's Tennessee profile. How we score.
Is it too late to plant in Red Boiling Springs?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 26; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 26 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 12 — 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.
What's on the federal record near Red Boiling Springs
Closest first, within ~10 miles of Red Boiling Springs. Listing isn't leaking, and distance isn't exposure.
- Cortez AdamsUnderground Storage Tanks · 300 ft
- Country GroceryUnderground Storage Tanks · 300 ft
- E H BilesUnderground Storage Tanks · 300 ft
- Pumpkintown GroceryUnderground Storage Tanks · 300 ft
- Doyle JenkinsUnderground Storage Tanks · 300 ft
- Kwik MartUnderground Storage Tanks · 300 ft
- Quik-N-Easy Deli Market #5Underground Storage Tanks · 1100 ft
- Bray and Sons Service StationUnderground Storage Tanks · 1600 ft
- Red Boiling Springs Mobil ServicUnderground Storage Tanks · 1600 ft
- The PalaceUnderground Storage Tanks · 2200 ft
- Bugtussle Transportation Inc.Underground Storage Tanks · 2400 ft
- SOLE DESIGN CABINETRYBrownfields · 0.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Red Boiling Springs'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 Red Boiling Springs.
Total Sites
89
within ~10 miles of Red Boiling Springs
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Red Boiling Springs
Severity Distribution
within ~10 miles of Red Boiling Springs
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Red Boiling Springs, Underground Storage Tanks runs higher than the national average — 74 sites within ~10 miles of Red Boiling Springs. That's not a problem with your land — it's information about it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Red Boiling Springs
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 Red Boiling Springs average
Your land is one point inside Red Boiling Springs
Everything above resolves to Red Boiling Springs as a whole — one PHZM band and one 28°F frost record, read across 1K 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 city 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 Red Boiling Springs Average
Red Boiling Springs Average
- ●USDA Zones 7a, averaged across Red Boiling Springs
- ●One soil character for all of Red Boiling Springs
- ●Frost dates read at Red Boiling Springs's scale: Mar 26 to Nov 12
YOUR Parcel
- ✓Your exact zone, not Red Boiling Springs's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Red Boiling Springs
Pull a site-specific report for your exact address in Red Boiling Springs, Tennessee — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Red Boiling Springs averages can't show:
We read public map data around Red Boiling Springs — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Red Boiling Springs average
How we know this about Red Boiling Springs
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Red Boiling Springs’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 city grain anywhere on this page — there is no city-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 Red Boiling Springs
When does frost risk typically end in Red Boiling Springs?
The last hard freeze (28°F) in Red Boiling Springs typically lands around Mar 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 Apr 16.
When is the first frost in Red Boiling Springs?
The first hard freeze (28°F) in Red Boiling Springs typically arrives around Nov 12, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 29, so the watching starts about Oct 13 — about 231 days after the spring freeze cleared.
How long is the growing season in Red Boiling Springs?
Measured between 28°F hard freezes, Red Boiling Springs sees about 231 frost-free days — roughly Mar 26 through Nov 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 16 to Oct 29, about 196 days.
Is the soil safe to grow vegetables in Red Boiling Springs?
The federal record around Red Boiling Springs shows 89 documented sites, mostly Underground Storage Tanks entries (74), the nearest Underground Storage Tanks record under a tenth of a mile out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Red Boiling Springs?
From about Oct 13 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 12 (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 12. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Red Boiling Springs's scale — its 7a band and its 231-day season. Your yard writes its own version of Red Boiling Springs'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 Red Boiling Springs’s own scale
6 of the readings below were taken at Red Boiling Springs's own scale — its own ~231-day season between 28°F freezes, the 1,120 acres it covers and 89 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Red Boiling Springs's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Red Boiling Springs's own 28°F hard-freeze dates, about Mar 26 and Nov 12 and the ~231-day span between themNOAA 1991–2020 Climate Normals
- 89 documented contamination sites on the federal record near Red Boiling Springs, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Red Boiling Springs's boundary and the 1,120 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~231-day seasonGrowable Ground crop-matching engine
- The ecoregion at Red Boiling Springs's own centroid, the Interior PlateauUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Red Boiling Springs's 1,120 acres read through its county's SSURGO summaryfrom Macon County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Macon County
- The growing challenges every Tennessee grower plans around — written at state scale, so they stay on the state guidefrom Tennessee
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Macon County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Red Boiling Springs's 1,120 acreswhy one lot differs from the next →
- Which side of Red Boiling Springs you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,120 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Red Boiling Springs-wide figureread your own land →
More in Tennessee
Wider growing context
What grows across TennesseeRed Boiling Springs sits outside our named growing regions, so Tennessee as a whole is its closest context here.
Nearby growing guides