Mount Juliet, Tennessee, sits in USDA hardiness zone 7b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Reliable performers under these conditions include cabbage, prickly pear, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Mount Juliet, 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 Mount Juliet 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 Mount Juliet — soil, climate, flood, and parcel records. How we handle your address.
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Mount Juliet — the short answer
Mount Juliet, Tennessee: USDA zone 7b, about 231 days between hard freezes, across 17K 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
- 17K 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 Mount Juliet's average, not your lot's — a low corner or a tree line moves it. Against Mount Juliet's 231-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Mount Juliet
Each reading below is measured for Mount Juliet itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMount Juliet 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
MeasuredMount Juliet 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 Mount Juliet is in
Mount Juliet sits in the Interior Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Mount Juliet's own centroid rather than borrowed from Wilson County.
What Grows in Mount Juliet
Every plant below cleared Mount Juliet'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 Mount Juliet?
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. 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 Mount Juliet
Spotted lanternfly documented 2 miles from Mount Juliet, first recorded 2023. What to watch for.
What's on the federal record near Mount Juliet
Closest first, within ~10 miles of Mount Juliet. Listing isn't leaking, and distance isn't exposure.
- RACKLEY ROOFING CO., INCBrownfields · 1100 ft
- Donelson Roofing Co., Inc.Underground Storage Tanks · 1100 ft
- Southern WoodenwareUnderground Storage Tanks · 1300 ft
- West Wilson Co ConcreteUnderground Storage Tanks · 1400 ft
- S S Ind IncUnderground Storage Tanks · 1600 ft
- JOHN DEAL COATINGS INCBrownfields · 1800 ft
- JOHN DEAL COATINGS INCToxics Release Inventory · 1800 ft
- WI:J- 30 (330)Nitrate · 2100 ft
- NASHVILLE READY MIXToxics Release Inventory · 2600 ft
- Kothari Inc d/b/a Fun Food MartUnderground Storage Tanks · 0.5 mi
- City Of Mt JulietUnderground Storage Tanks · 0.5 mi
- JOHN DEAL COATINGSToxics Release Inventory · 0.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Mount Juliet'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 Mount Juliet.
Total Sites
388
within ~10 miles of Mount Juliet
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Mount Juliet
Severity Distribution
within ~10 miles of Mount Juliet
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Mount Juliet, two things run higher than the national average within ~10 miles of Mount Juliet — Toxics Release Inventory (26 sites) and Underground Storage Tanks (254 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Mount Juliet
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 Mount Juliet average
Your land is one point inside Mount Juliet
Everything above resolves to Mount Juliet as a whole — one PHZM band and one 28°F frost record, read across 17K 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 Mount Juliet Average
Mount Juliet Average
- ●USDA Zones 7b, averaged across Mount Juliet
- ●One soil character for all of Mount Juliet
- ●Frost dates read at Mount Juliet's scale: Mar 23 to Nov 9
YOUR Parcel
- ✓Your exact zone, not Mount Juliet's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Mount Juliet
Pull a site-specific report for your exact address in Mount Juliet, Tennessee — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Mount Juliet averages can't show:
We read public map data around Mount Juliet — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Mount Juliet average
How we know this about Mount Juliet
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 Mount Juliet’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 Mount Juliet
When does frost risk typically end in Mount Juliet?
The last hard freeze (28°F) in Mount Juliet 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 Mount Juliet?
The first hard freeze (28°F) in Mount Juliet 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 Mount Juliet?
Measured between 28°F hard freezes, Mount Juliet 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 Mount Juliet?
The federal record around Mount Juliet is a meaningful one — 388 documented sites, mostly Underground Storage Tanks entries (254), the nearest Brownfields 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 Mount Juliet?
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 Mount Juliet's scale — its 7b band and its 231-day season. Your yard writes its own version of Mount Juliet'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 Mount Juliet’s own scale
7 of the readings below were taken at Mount Juliet's own scale — its own ~231-day season between 28°F freezes, the 16,762 acres it covers and 388 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Mount Juliet's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Mount Juliet's own 28°F hard-freeze dates, about Mar 23 and Nov 9 and the ~231-day span between themNOAA 1991–2020 Climate Normals
- 388 documented contamination sites on the federal record near Mount Juliet, the closest Brownfields record about 0.2 miles out from the town centreFederal environmental registers
- Mount Juliet's boundary and the 16,762 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 Mount Juliet's own centroid, the Interior PlateauUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Mount Julietlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Mount Juliet's 16,762 acres read through its county's SSURGO summaryfrom Wilson County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Wilson 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 Wilson County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Mount Juliet's 16,762 acreswhy one lot differs from the next →
- Which side of Mount Juliet you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 16,762 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Mount Juliet-wide figureread your own land →
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