Brentwood, Tennessee, sits in USDA hardiness zone 7b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Expect cabbage, prickly pear, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Brentwood, 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 Brentwood 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 Brentwood — soil, climate, flood, and parcel records. How we handle your address.
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Brentwood — the short answer
Brentwood, Tennessee: USDA zone 7b, about 231 days between hard freezes, across 27K acres of city.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 23
- 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
- ~231
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 27K 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 Brentwood's average, not your lot's — a low corner or a tree line moves it. Against Brentwood's 231-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Brentwood
Each reading below is measured for Brentwood itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBrentwood 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
MeasuredBrentwood 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 Brentwood is in
Brentwood sits in the Interior Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Brentwood's own centroid rather than borrowed from Williamson County.
What Grows in Brentwood
Every plant below cleared Brentwood's own zone 7b and its 231-day season. Each card opens that plant's Tennessee profile. How we score.
Is it too late to plant in Brentwood?
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 Feb 23; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 23 (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.
Documented around Brentwood
Spotted lanternfly documented 10 miles from Brentwood, first recorded 2023. What to watch for.
What's on the federal record near Brentwood
Closest first, within ~10 miles of Brentwood. Listing isn't leaking, and distance isn't exposure.
- Concord Corner StoreUnderground Storage Tanks · 2400 ft
- Concord General StoreUnderground Storage Tanks · 2500 ft
- BRENTWOOD WATER DEPTARTMENTPFAS · 0.9 mi
- Jerry JonesUnderground Storage Tanks · 1.4 mi
- Green Pasture FarmsUnderground Storage Tanks · 2.2 mi
- DACON MFG COToxics Release Inventory · 2.4 mi
- Washmaster Auto CenterUnderground Storage Tanks · 2.4 mi
- Sharondale Construction Co.Underground Storage Tanks · 2.4 mi
- Bellsouth Brentwood Data Center No. 82376Underground Storage Tanks · 2.4 mi
- TESLA SERVICE CENTERBrownfields · 2.5 mi
- NATIONAL TIRE & BATTERY #8829Brownfields · 2.6 mi
- Wallace E Goodwin Gen Cont IncUnderground Storage Tanks · 2.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Brentwood'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 Brentwood.
Total Sites
993
within ~10 miles of Brentwood
Risk Level
Elevated
Highest-severity
4 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Brentwood
Severity Distribution
within ~10 miles of Brentwood
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Brentwood, Toxics Release Inventory runs higher than the national average — 80 sites within ~10 miles of Brentwood. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Brentwood
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 Brentwood average
Your land is one point inside Brentwood
Everything above resolves to Brentwood as a whole — one PHZM band and one 28°F frost record, read across 27K 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 Brentwood Average
Brentwood Average
- ●USDA Zones 7b, averaged across Brentwood
- ●One soil character for all of Brentwood
- ●Frost dates read at Brentwood's scale: Mar 23 to Nov 9
YOUR Parcel
- ✓Your exact zone, not Brentwood's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Brentwood
Pull a site-specific report for your exact address in Brentwood, Tennessee — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Brentwood averages can't show:
We read public map data around Brentwood — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Brentwood average
How we know this about Brentwood
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 Brentwood’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 Brentwood
When does frost risk typically end in Brentwood?
The last hard freeze (28°F) in Brentwood typically lands around Mar 23, 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 13.
When is the first frost in Brentwood?
The first hard freeze (28°F) in Brentwood 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 231 days after the spring freeze cleared.
How long is the growing season in Brentwood?
Measured between 28°F hard freezes, Brentwood sees about 231 frost-free days — roughly Mar 23 through Nov 9, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 13 to Oct 26, about 196 days.
Is the soil safe to grow vegetables in Brentwood?
The federal record around Brentwood is a meaningful one — 993 documented sites, mostly Underground Storage Tanks entries (604), 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 Brentwood?
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 Brentwood's scale — its 7b band and its 231-day season. Your yard writes its own version of Brentwood'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 Brentwood’s own scale
7 of the readings below were taken at Brentwood's own scale — its own ~231-day season between 28°F freezes, the 26,984 acres it covers and 993 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Brentwood's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Brentwood's own 28°F hard-freeze dates, about Mar 23 and Nov 9 and the ~231-day span between themNOAA 1991–2020 Climate Normals
- 993 documented contamination sites on the federal record near Brentwood, the closest Underground Storage Tanks record about 0.5 miles out from the town centreFederal environmental registers
- Brentwood's boundary and the 26,984 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~231-day seasonGrowable Ground crop-matching engine
- The ecoregion at Brentwood's own centroid, the Interior PlateauUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Brentwoodlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Brentwood's 26,984 acres read through its county's SSURGO summaryfrom Williamson County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Williamson 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 Williamson County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Brentwood's 26,984 acreswhy one lot differs from the next →
- Which side of Brentwood you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 26,984 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 Brentwood-wide figureread your own land →
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