Horn Hill, Alabama, sits in USDA hardiness zone 8b — a zone band wide enough that plant choice, not possibility, is the interesting question.
A short list that earns its place here — cabbage, fig, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Horn Hill, 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 Horn Hill 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 Horn Hill — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Horn Hill — the short answer
Horn Hill, Alabama: USDA zone 8b, about 287 days between hard freezes, across 2K acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 19
- Covington County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 3
- Covington County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~287
- Covington County normal — NOAA 1991–2020, nearest to this town
- Town area
- 2K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Covington County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Horn Hill's average, not your lot's — a low corner or a tree line moves it. Against Horn Hill's 287-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Horn Hill
Each reading below is measured for Horn Hill itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsHorn Hill runs about 287 days between hard freezes (read from Covington County, the closest normal to Horn Hill) — close to year-round growing.
Frost is rarely the limit here; winter plantings are as real as summer ones, and the harder question is which crops shrug off the summer heat.
Grow cool-season crops through the mild winter, and choose heat-tolerant varieties for the summer beds.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredHorn Hill sits in USDA hardiness zone 8b.
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 Horn Hill is in
Horn Hill sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Horn Hill's own centroid rather than borrowed from Covington County.
What Grows in Horn Hill
Every plant below cleared Horn Hill's own zone 8b and its 287-day season. Each card opens that plant's Alabama profile. How we score.
Is it too late to plant in Horn Hill?
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 Jan 22; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 19 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 3 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.
What's on the federal record near Horn Hill
Closest first, within ~10 miles of Horn Hill. Listing isn't leaking, and distance isn't exposure.
- HARPER GROCERYUnderground Storage Tanks · 1300 ft
- HARPERS GROCERYUnderground Storage Tanks · 1300 ft
- BILLY WAYNE CRAVEYCAFO · 1.2 mi
- RACEWAY #868 - BIG ""T"" MINI-MALLUnderground Storage Tanks · 2.4 mi
- ONYCHA GROCERYUnderground Storage Tanks · 2.9 mi
- OPP LANDFILLUnderground Storage Tanks · 3.1 mi
- DANLEE FARMSCAFO · 3.6 mi
- BROWN GROCERYUnderground Storage Tanks · 3.6 mi
- OPP AND MICOLAS MILLS INCUnderground Storage Tanks · 4.0 mi
- JAMIE REGISTER FARMCAFO · 4.0 mi
- JERRY'S SPURUnderground Storage Tanks · 4.1 mi
- MCCARTY SERVICE STATIONUnderground Storage Tanks · 4.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Horn Hill'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 Horn Hill.
Total Sites
143
within ~10 miles of Horn Hill
Risk Level
Moderate
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Horn Hill
Severity Distribution
within ~10 miles of Horn Hill
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Horn Hill, CAFO runs higher than the national average — 33 sites within ~10 miles of Horn Hill. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Check your specific parcel in Horn Hill
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 Horn Hill average
Your land is one point inside Horn Hill
Everything above resolves to Horn Hill as a whole — one PHZM band, read across 2K acres, with hard-freeze dates borrowed from Covington County’s record because no 30-year normal resolves at this town’s own centroid. 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 Horn Hill Average
Horn Hill Average
- ●USDA Zones 8b, averaged across Horn Hill
- ●One soil character for all of Horn Hill
- ●Frost dates read at Horn Hill's scale: Feb 19 to Dec 3
YOUR Parcel
- ✓Your exact zone, not Horn Hill's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Horn Hill
Pull a site-specific report for your exact address in Horn Hill, Alabama — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Horn Hill averages can't show:
We read public map data around Horn Hill — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Horn Hill average
How we know this about Horn Hill
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 Covington County’s record, because none resolves here; 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 Horn Hill
When does frost risk typically end in Horn Hill?
The last hard freeze (28°F) in Horn Hill typically lands around Feb 19, 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 Mar 12.
When is the first frost in Horn Hill?
The first hard freeze (28°F) in Horn Hill typically arrives around Dec 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 19, so the watching starts about Nov 3 — about 287 days after the spring freeze cleared.
How long is the growing season in Horn Hill?
Measured between 28°F hard freezes, Horn Hill sees about 287 frost-free days — roughly Feb 19 through Dec 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 12 to Nov 19, about 252 days.
Is the soil safe to grow vegetables in Horn Hill?
The federal record around Horn Hill shows 143 documented sites, mostly Underground Storage Tanks entries (85), the nearest Underground Storage Tanks record about 0.2 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Horn Hill?
From about Nov 3 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 Dec 3 (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 Dec 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Horn Hill's scale — its 8b band and its 287-day season. Your yard writes its own version of Horn Hill'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 Horn Hill’s own scale
5 of the readings below were taken at Horn Hill's own scale — the 1,635 acres it covers and 143 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Horn Hill's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 143 documented contamination sites on the federal record near Horn Hill, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Horn Hill's boundary and the 1,635 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~287-day seasonGrowable Ground crop-matching engine
- The ecoregion at Horn Hill's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Horn Hill has no normal of its own, so its county's is the closest measured readfrom Covington County
- Soil character — no town-scale survey exists, so Horn Hill's 1,635 acres read through its county's SSURGO summaryfrom Covington County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Covington County
- The growing challenges every Alabama grower plans around — written at state scale, so they stay on the state guidefrom Alabama
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Covington County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Horn Hill's 1,635 acreswhy one lot differs from the next →
- Which side of Horn Hill you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,635 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Horn Hill-wide figureread your own land →
More in Alabama
Growing region
Nearby growing guides