Middle Valley, Tennessee, sits in USDA hardiness zone 8a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Well-matched crops include cabbage, fig, california poppy, 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 Middle Valley, 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 Middle Valley 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 Middle Valley — soil, climate, flood, and parcel records. How we handle your address.
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Middle Valley — the short answer
Middle Valley, Tennessee: USDA zone 8a, about 245 days between hard freezes, across 6K acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~245
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 6K 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 8a is Middle Valley's average, not your lot's — a low corner or a tree line moves it. Against Middle Valley's 245-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Middle Valley
Each reading below is measured for Middle Valley itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMiddle Valley runs about 245 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
MeasuredMiddle Valley sits in USDA hardiness zone 8a.
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 Middle Valley is in
Middle Valley sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Middle Valley's own centroid rather than borrowed from Hamilton County.
What Grows in Middle Valley
Every plant below cleared Middle Valley's own zone 8a and its 245-day season. Each card opens that plant's Tennessee profile. How we score.
Is it too late to plant in Middle Valley?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 15; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 15 — 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 Middle Valley
Survey cells within 31 miles of Middle Valley checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 94 miles off. What to watch for.
What's on the federal record near Middle Valley
Closest first, within ~10 miles of Middle Valley. Listing isn't leaking, and distance isn't exposure.
- WALMART NEIGHBORHOOD MARKET #5188Brownfields · 2200 ft
- Walmart Fuel Station no. 5188Underground Storage Tanks · 2200 ft
- Pump And GoUnderground Storage Tanks · 2600 ft
- Middle Valley PureUnderground Storage Tanks · 0.5 mi
- East Crabtree C.o. - Glc #81152Underground Storage Tanks · 0.9 mi
- Middle Valley Soc - 81178Underground Storage Tanks · 0.9 mi
- Hm:N-090Nitrate · 1.3 mi
- Dallas Bay Sky ParkUnderground Storage Tanks · 1.3 mi
- Circle K Store No. 4703611Underground Storage Tanks · 1.3 mi
- Former Majik MarketUnderground Storage Tanks · 1.5 mi
- Spur MarketUnderground Storage Tanks · 1.6 mi
- Conleys Service CenterUnderground Storage Tanks · 1.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Middle Valley'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 Middle Valley.
Sources Checked
within ~10 miles of Middle Valley
Severity Distribution
within ~10 miles of Middle Valley
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Middle Valley, two things run higher than the national average within ~10 miles of Middle Valley — Toxics Release Inventory (64 sites) and PFAS (6 sites). That's not a problem with your land — it's information about it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Middle Valley
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 Middle Valley average
Your land is one point inside Middle Valley
Everything above resolves to Middle Valley as a whole — one PHZM band and one 28°F frost record, read across 6K 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 Middle Valley Average
Middle Valley Average
- ●USDA Zones 8a, averaged across Middle Valley
- ●One soil character for all of Middle Valley
- ●Frost dates read at Middle Valley's scale: Mar 15 to Nov 15
YOUR Parcel
- ✓Your exact zone, not Middle Valley's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Middle Valley
Pull a site-specific report for your exact address in Middle Valley, Tennessee — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Middle Valley averages can't show:
We read public map data around Middle Valley — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Middle Valley average
How we know this about Middle Valley
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 Middle Valley’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 Middle Valley
When does frost risk typically end in Middle Valley?
The last hard freeze (28°F) in Middle Valley typically lands around Mar 15, 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 5.
When is the first frost in Middle Valley?
The first hard freeze (28°F) in Middle Valley typically arrives around Nov 15, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 1, so the watching starts about Oct 16 — about 245 days after the spring freeze cleared.
How long is the growing season in Middle Valley?
Measured between 28°F hard freezes, Middle Valley sees about 245 frost-free days — roughly Mar 15 through Nov 15, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 5 to Nov 1, about 210 days.
Is the soil safe to grow vegetables in Middle Valley?
The federal record around Middle Valley is a meaningful one — 621 documented sites, mostly Underground Storage Tanks entries (398), the nearest Brownfields record about 0.4 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 Middle Valley?
From about Oct 16 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 15 (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 15. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Middle Valley's scale — its 8a band and its 245-day season. Your yard writes its own version of Middle Valley'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 Middle Valley’s own scale
7 of the readings below were taken at Middle Valley's own scale — its own ~245-day season between 28°F freezes, the 6,248 acres it covers and 621 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Middle Valley's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Middle Valley's own 28°F hard-freeze dates, about Mar 15 and Nov 15 and the ~245-day span between themNOAA 1991–2020 Climate Normals
- 621 documented contamination sites on the federal record near Middle Valley, the closest Brownfields record about 0.4 miles out from the town centreFederal environmental registers
- Middle Valley's boundary and the 6,248 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~245-day seasonGrowable Ground crop-matching engine
- The ecoregion at Middle Valley's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
- Lanternfly survey cells around Middle Valley checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Middle Valley's 6,248 acres read through its county's SSURGO summaryfrom Hamilton County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Hamilton 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 Hamilton County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Middle Valley's 6,248 acreswhy one lot differs from the next →
- Which side of Middle Valley you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 6,248 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.4 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 Middle Valley-wide figureread your own land →
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