New Market, Tennessee, sits in USDA hardiness zone 7b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Well-matched crops include cabbage, prickly pear, 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 New Market, 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 New Market 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 New Market — soil, climate, flood, and parcel records. How we handle your address.
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New Market — the short answer
New Market, Tennessee: USDA zone 7b, about 234 days between hard freezes, across 3K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 20
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 9
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~234
- 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 7b is New Market's average, not your lot's — a low corner or a tree line moves it. Against New Market's 234-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in New Market
Each reading below is measured for New Market itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredNew Market runs about 234 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
MeasuredNew Market sits in USDA hardiness zone 7b.
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 New Market is in
New Market sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at New Market's own centroid rather than borrowed from Jefferson County.
What Grows in New Market
Every plant below cleared New Market's own zone 7b and its 234-day season. Each card opens that plant's Tennessee profile. How we score.
Is it too late to plant in New Market?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Feb 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 20 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 9 — 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.
What's on the federal record near New Market
Closest first, within ~10 miles of New Market. Listing isn't leaking, and distance isn't exposure.
- Lost Creek Gulf ClubUnderground Storage Tanks · 2400 ft
- New Market BPUnderground Storage Tanks · 0.6 mi
- Greystone MarketUnderground Storage Tanks · 0.6 mi
- New Market GroceryUnderground Storage Tanks · 0.6 mi
- Bows Rocky ValleyUnderground Storage Tanks · 0.6 mi
- David Berry Ser StaUnderground Storage Tanks · 0.6 mi
- Mckeon Country StoreUnderground Storage Tanks · 0.6 mi
- Jefferson Block And SupplyUnderground Storage Tanks · 0.6 mi
- Hollis HodgsonUnderground Storage Tanks · 0.6 mi
- Dillard Smith Construction CoUnderground Storage Tanks · 0.6 mi
- Young MineUnderground Storage Tanks · 0.6 mi
- Asarco New Market ConcentratorMining · 0.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from New Market'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 New Market.
Total Sites
288
within ~10 miles of New Market
Risk Level
Elevated
Highest-severity
4 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of New Market
Severity Distribution
within ~10 miles of New Market
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around New Market, two things run higher than the national average within ~10 miles of New Market — Mining (39 sites) and PFAS (4 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in New Market
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 New Market average
Your land is one point inside New Market
Everything above resolves to New Market 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 New Market Average
New Market Average
- ●USDA Zones 7b, averaged across New Market
- ●One soil character for all of New Market
- ●Frost dates read at New Market's scale: Mar 20 to Nov 9
YOUR Parcel
- ✓Your exact zone, not New Market's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in New Market
Pull a site-specific report for your exact address in New Market, Tennessee — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that New Market averages can't show:
We read public map data around New Market — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the New Market average
How we know this about New Market
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 New Market’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 New Market
When does frost risk typically end in New Market?
The last hard freeze (28°F) in New Market typically lands around Mar 20, 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 10.
When is the first frost in New Market?
The first hard freeze (28°F) in New Market typically arrives around Nov 9, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 26, so the watching starts about Oct 10 — about 234 days after the spring freeze cleared.
How long is the growing season in New Market?
Measured between 28°F hard freezes, New Market sees about 234 frost-free days — roughly Mar 20 through Nov 9, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 10 to Oct 26, about 199 days.
Is the soil safe to grow vegetables in New Market?
The federal record around New Market is a meaningful one — 288 documented sites, mostly Underground Storage Tanks entries (166), the nearest Underground Storage Tanks record about 0.5 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 New Market?
From about Oct 10 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 9 (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 9. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at New Market's scale — its 7b band and its 234-day season. Your yard writes its own version of New Market'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 New Market’s own scale
6 of the readings below were taken at New Market's own scale — its own ~234-day season between 28°F freezes, the 2,709 acres it covers and 288 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- New Market's own USDA hardiness band, zones 7bUSDA PHZM 2023
- New Market's own 28°F hard-freeze dates, about Mar 20 and Nov 9 and the ~234-day span between themNOAA 1991–2020 Climate Normals
- 288 documented contamination sites on the federal record near New Market, the closest Underground Storage Tanks record about 0.5 miles out from the town centreFederal environmental registers
- New Market's boundary and the 2,709 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~234-day seasonGrowable Ground crop-matching engine
- The ecoregion at New Market's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so New Market's 2,709 acres read through its county's SSURGO summaryfrom Jefferson County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Jefferson 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 Jefferson County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among New Market's 2,709 acreswhy one lot differs from the next →
- Which side of New Market you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,709 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.5 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 New Market-wide figureread your own land →
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