Alamo, Tennessee, sits in USDA hardiness zone 7b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
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 Alamo, 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 Alamo 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 Alamo — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Alamo — the short answer
Alamo, Tennessee: USDA zone 7b, about 244 days between hard freezes, across 1K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 16
- 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
- ~244
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town 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 7b is Alamo's average, not your lot's — a low corner or a tree line moves it. Against Alamo's 244-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Alamo
Each reading below is measured for Alamo itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAlamo runs about 244 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
MeasuredAlamo 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 Alamo is in
Alamo sits in the Mississippi Valley Loess Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Alamo's own centroid rather than borrowed from Crockett County.
What Grows in Alamo
Every plant below cleared Alamo's own zone 7b and its 244-day season. Each card opens that plant's Tennessee profile. How we score.
Is it too late to plant in Alamo?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 16; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 16 (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.
What's on the federal record near Alamo
Closest first, within ~10 miles of Alamo. Listing isn't leaking, and distance isn't exposure.
- Grant Worrell MotorsUnderground Storage Tanks · 150 ft
- Tennessee DotUnderground Storage Tanks · 250 ft
- Bobby King GroceryUnderground Storage Tanks · 250 ft
- Carter BrothersUnderground Storage Tanks · 250 ft
- Freddie EarnheartUnderground Storage Tanks · 250 ft
- Benny ParlowUnderground Storage Tanks · 250 ft
- Donald PrescottUnderground Storage Tanks · 250 ft
- Crockett Co Bd Of EducationUnderground Storage Tanks · 250 ft
- A. H. Pratt Trucking CoUnderground Storage Tanks · 250 ft
- Clark GulfUnderground Storage Tanks · 300 ft
- ALAMO CONTAMINATED GROUND WATERSuperfund · 550 ft
- Ck:F-005Nitrate · 600 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Alamo'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 Alamo.
Sources Checked
within ~10 miles of Alamo
Severity Distribution
within ~10 miles of Alamo
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Alamo, Underground Storage Tanks runs higher than the national average — 68 sites within ~10 miles of Alamo. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around 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 Alamo
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 Alamo average
Your land is one point inside Alamo
Everything above resolves to Alamo 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 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 Alamo Average
Alamo Average
- ●USDA Zones 7b, averaged across Alamo
- ●One soil character for all of Alamo
- ●Frost dates read at Alamo's scale: Mar 16 to Nov 15
YOUR Parcel
- ✓Your exact zone, not Alamo's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Alamo
Pull a site-specific report for your exact address in Alamo, Tennessee — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Alamo averages can't show:
We read public map data around Alamo — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Alamo average
How we know this about Alamo
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 Alamo’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 Alamo
When does frost risk typically end in Alamo?
The last hard freeze (28°F) in Alamo typically lands around Mar 16, 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 6.
When is the first frost in Alamo?
The first hard freeze (28°F) in Alamo 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 244 days after the spring freeze cleared.
How long is the growing season in Alamo?
Measured between 28°F hard freezes, Alamo sees about 244 frost-free days — roughly Mar 16 through Nov 15, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 6 to Nov 1, about 209 days.
Is the soil safe to grow vegetables in Alamo?
The federal record around Alamo is a meaningful one — 101 documented sites, mostly Underground Storage Tanks entries (68), the nearest Underground Storage Tanks record under a tenth of a mile 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 Alamo?
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 Alamo's scale — its 7b band and its 244-day season. Your yard writes its own version of Alamo'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 Alamo’s own scale
6 of the readings below were taken at Alamo's own scale — its own ~244-day season between 28°F freezes, the 1,405 acres it covers and 101 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Alamo's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Alamo's own 28°F hard-freeze dates, about Mar 16 and Nov 15 and the ~244-day span between themNOAA 1991–2020 Climate Normals
- 101 documented contamination sites on the federal record near Alamo, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Alamo's boundary and the 1,405 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~244-day seasonGrowable Ground crop-matching engine
- The ecoregion at Alamo's own centroid, the Mississippi Valley Loess PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Alamo's 1,405 acres read through its county's SSURGO summaryfrom Crockett County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Crockett 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 Crockett County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Alamo's 1,405 acreswhy one lot differs from the next →
- Which side of Alamo you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,405 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 Alamo-wide figureread your own land →