Chilton County, in Alabama, sits in USDA hardiness zone 8a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Growers here do well with cabbage, fig, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Chilton County holds more than one microclimate.
Soils and elevations shift across Chilton County, so your frost dates and drainage aren't the county average. 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 Chilton County — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Chilton County — the short answer
Chilton County, Alabama: USDA zone 8a, about 264 days between hard freezes, across 443K acres.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 6
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Nov 25
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~264
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 443K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are county 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 8a is Chilton County's average, not your lot's — a low corner or a tree line moves it. Against Chilton County's 264-day season, see what your own ground reads.
Heat and winter chill in Chilton County
Across a year, Chilton County accumulates about 5,089 growing degree days above 50°F, about 195 fewer than the middle Alabama county — ahead of 27 of Alabama’s 67 counties. Degree days are the heat a crop actually gets to work with — more of them is more room to ripen a long-season crop before the freeze closes the window.
Winter banks about 1,316 hours below 45°F, 68 more than the Alabama middle of 1,248. Chill is what tells a fruit tree its dormancy is over, and it is set by climate rather than by anything you can build.
Grounded in PRISM Climate Group, Oregon State University — 1991–2020 monthly normals
Soil in Chilton County
Across Chilton County, the ground is predominantly Ultisols, where Luverne, Talladega, and Ruston are the most extensive named soil series. The soil is generally well drained with a fine sandy loam surface. Topsoil pH runs about 4.8–5.3, very strongly acidic. Rainfall drains through hydrologic group C soils.
Soil order
Ultisols
Drainage
Well drained
Prime farmland
17%
Hydric soils
7%
Soil still varies lot by lot — soil types explained.
How the ground varies across Chilton County
The USDA soil survey maps 80% of Chilton County as well drained — but another 19% drains differently: 8% moderately well drained, 8% poorly drained.
Luverne is the most extensive named soil at 14% of mapped acres, then Talladega (14%) and Ruston (11%).
Which of them your own lot sits on is a parcel question, not a county one. Check your address for the survey at your boundary.
What this means for growing in Chilton County
Each reading below is measured for Chilton County itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Drainage
MeasuredThe dominant soils across Chilton County are well drained, in hydrologic group C — ground that drains quickly.
The upside is soil you can work early in spring and roots that never drown; the cost is that fast-draining ground dries out fast and leaches nutrients away before plants can use them.
Work in compost and mulch to hold moisture and feed, and water more often in short doses than deep and rarely.
USDA NRCS SSURGO
Surface pH
MeasuredTopsoil across Chilton County runs about pH 4.8–5.3, on the acidic side.
Blueberries, potatoes, and rhododendrons thrive in it, but most vegetables start locking out nutrients below about pH 6.0 and grow pale and stunted no matter how much you feed them.
A measured lime application raises pH for the crops that need it — but test first, because the right rate depends on your own soil, not the county average.
USDA NRCS SSURGO
Season length
MeasuredChilton County runs about 264 days between hard freezes — 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
MeasuredChilton County sits in USDA hardiness zone 8a.
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 Chilton County is in
Chilton County spans 2 EPA Level III ecoregions — Southeastern Plains (66%) and Piedmont (30%). Which one your land falls in changes what grows wild there and how the ground behaves, and a county-wide answer cannot tell you which.
What Grows in Chilton County
We scored all 1,086 plants against Chilton County's own USDA zone 8a and its own 264-day season between hard freezes, using the same matching engine that runs a full parcel report. These cleared both. Sun, soil pH and drainage vary lot by lot — those are the parcel questions below. Each card opens that plant's Alabama profile.
Is it too late to plant in Chilton County?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 6; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 6 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 25 — long-season crops need about 90 days of runway, quick greens only 30. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.
What gets applied to farmland in Chilton County
USGS estimates 9,852 lb of Glyphosate on Chilton County farmland in 2019, its largest by weight, ahead of 2,4-d (5,941 lb) and Dicamba (2,745 lb).
Farmland across the whole county, not any one lot. Check your address for the site-by-site record.
Safe to Grow Here?
What the federal record shows across Chilton County — and how to grow with it.
We checked the federal record across Chilton County — 260 documented sites across 7 of the 9 source types we track.
The most significant on record: 3 Superfund sites (none NPL-listed). Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
There's a meaningful federal record across Chilton County — worth a look before you plant food, not a reason to hold back from growing. Proximity to a documented site is information, not a diagnosis of any one yard. A soil test before new food beds is the sensible precaution here, and the map shows exactly which sites sit where, so you can see what's actually near you.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
What's on the federal record near Chilton County
Closest first, across Chilton County. Listing isn't leaking, and distance isn't exposure.
- Well NAWQA FLH 30 Chilton County AlNitrate · 1.3 mi
- THORSBY WATER WORKS BOARDPFAS · 1.7 mi
- D & M COUNTRY STOREUnderground Storage Tanks · 1.8 mi
- GARRISON HAULING CO INCUnderground Storage Tanks · 2.3 mi
- B. T. Childers ProspectMining · 2.6 mi
- B.T. Childer's ProspectMining · 2.8 mi
- THE HITCHIN POST (BP)Underground Storage Tanks · 2.9 mi
- HWY 22 QUICK STOPUnderground Storage Tanks · 3.3 mi
- DOUG'S PARADEUnderground Storage Tanks · 3.5 mi
- STOREUnderground Storage Tanks · 3.5 mi
- DUNLAP GROCUnderground Storage Tanks · 3.5 mi
- BOISE CASCADE WOOD PRODUCTSUnderground Storage Tanks · 3.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Chilton County'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 Chilton County.
Total Sites
260
across Chilton County
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
across Chilton County
Severity Distribution
across Chilton County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Chilton County, two things run higher than the national average across Chilton County — PFAS (4 sites) and Underground Storage Tanks (193 sites). That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Chilton County
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 Chilton County average
Your land is one point inside Chilton County
Everything above resolves to Chilton County as a whole — one PHZM band and one county frost record, read across 443K 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 county 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 county average.
Your Lot vs the Chilton County Average
Chilton County Average
- ●USDA Zones 8a, averaged across Chilton County
- ●One soil character for all of Chilton County
- ●Frost dates read at Chilton County's scale: Mar 6 to Nov 25
YOUR Parcel
- ✓Your exact zone, not Chilton County's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Chilton County
Pull a site-specific report for your exact address in Chilton County, Alabama — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Chilton County averages can't show:
We read public map data around Chilton County — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Chilton County average
How we know this about Chilton County
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at county grain; hard-freeze dates from NOAA 1991–2020 28°F normals at this county’s own record where one resolves, and the labelled statewide window where none does; soils from the USDA NRCS SSURGO survey, area-weighted across the county’s own map units; boundaries and acreage from US Census TIGER/Line 2025; the contamination and pesticide records from the federal sources named in their beats above. Where Chilton County carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Chilton County
When does frost risk typically end in Chilton County?
The last hard freeze (28°F) in Chilton County typically lands around Mar 6, 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 27.
How long is the growing season in Chilton County?
Measured between 28°F hard freezes, Chilton County sees about 264 frost-free days — roughly Mar 6 through Nov 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 27 to Nov 11, about 229 days.
Is the soil safe to grow vegetables in Chilton County?
The federal record around Chilton County is a meaningful one — 260 documented sites, mostly Underground Storage Tanks entries (193), the nearest Nitrate record about 1.3 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.
Everything above is measured at Chilton County's scale — its 8a band and its 264-day season. Your yard writes its own version of Chilton County's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
Will It Grow Here?
Zone fit is the first question — each answer below reads Alabama's frost window, season length, and soil profile against the plant's real requirements.
What this page reads at Chilton County’s own scale
8 of the readings below were taken at Chilton County's own scale — its own ~264-day span between 28°F freezes, the 3 most extensive soil series mapped here and 260 documented sites inside its boundary; one is borrowed from a wider read, named and linked below.
Measured here
- Chilton County's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Chilton County's own 28°F hard-freeze dates and its ~264-day span between themNOAA 1991–2020 Climate Normals
- The soil order, drainage, surface pH, and the 3 most extensive named soil series mapped in Chilton CountyUSDA NRCS SSURGO
- 260 documented contamination sites inside the county boundary, distance-sorted from its center — the closest Nitrate record about 1.3 miles outFederal environmental registers
- Chilton County's boundary and the 443,416 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~264-day seasonGrowable Ground crop-matching engine
- The 2 ecoregions Chilton County spans, Southeastern Plains the largestUS EPA Level III Ecoregions
- Which agricultural compounds go onto Chilton County farmland, and roughly how muchUSGS NAWQA EPest county estimates
Inherited from a wider read
- The growing challenges every Alabama grower plans around — written at state scale, so they stay on the state guidefrom Alabama
What this page can’t tell you
- How the season shifts across Chilton County — the ~264 days above is one reading at its centre; the 12 towns below each carry their owntowns in this county →
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Chilton County's 443,416 acreswhy one lot differs from the next →
- Which of those 260 documented sites actually reaches your soil — that needs your address, the wind, and the groundwater directionhow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — none of it survives being averaged over Chilton Countyread your own land →