Columbiana, Alabama, sits in USDA hardiness zone 8b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
These conditions suit cabbage, fig, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Columbiana, 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 Columbiana 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 Columbiana — soil, climate, flood, and parcel records. How we handle your address.
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Columbiana — the short answer
Columbiana, Alabama: USDA zone 8b, about 281 days between hard freezes, across 12K acres of city.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 23
- Shelby County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 1
- Shelby County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~281
- Shelby County normal — NOAA 1991–2020, nearest to this town
- City area
- 12K 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 Shelby County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Columbiana's average, not your lot's — a low corner or a tree line moves it. Against Columbiana's 281-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Columbiana
Each reading below is measured for Columbiana itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsColumbiana runs about 281 days between hard freezes (read from Shelby County, the closest normal to Columbiana) — 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
MeasuredColumbiana 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 Columbiana is in
Columbiana sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Columbiana's own centroid rather than borrowed from Shelby County.
What Grows in Columbiana
Every plant below cleared Columbiana's own zone 8b and its 281-day season. Each card opens that plant's Alabama profile. How we score.
Is it too late to plant in Columbiana?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Jan 26; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 23 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 1 — 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's on the federal record near Columbiana
Closest first, within ~10 miles of Columbiana. Listing isn't leaking, and distance isn't exposure.
- ALLOY CAST PRODUCTSUnderground Storage Tanks · 0.7 mi
- COLUMBIANA FACILITYUnderground Storage Tanks · 0.7 mi
- E Z FOOD MARTUnderground Storage Tanks · 0.7 mi
- Circle K #2723869Underground Storage Tanks · 0.8 mi
- SHELBY COUNTY BUS SHOPUnderground Storage Tanks · 0.8 mi
- SHELBY COUNTY SHERIFF'S DEPARTMENTUnderground Storage Tanks · 0.8 mi
- GREDE II - COLUMBIANABrownfields · 0.8 mi
- GREDE II - COLUMBIANAToxics Release Inventory · 0.8 mi
- COLUMBIANA MIDDLE SCHOOLUnderground Storage Tanks · 0.8 mi
- COUNTY FORESTRY SHOPUnderground Storage Tanks · 0.8 mi
- CITY OF COLUMBIANAUnderground Storage Tanks · 0.8 mi
- JERRY'S EXPRESS LUBE TEXACOUnderground Storage Tanks · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Columbiana'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 Columbiana.
Total Sites
162
within ~10 miles of Columbiana
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Columbiana
Severity Distribution
within ~10 miles of Columbiana
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Columbiana, two things run higher than the national average within ~10 miles of Columbiana — PFAS (3 sites) and Toxics Release Inventory (17 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Columbiana
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 Columbiana average
Your land is one point inside Columbiana
Everything above resolves to Columbiana as a whole — one PHZM band, read across 12K acres, with hard-freeze dates borrowed from Shelby County’s record because no 30-year normal resolves at this city’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 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 Columbiana Average
Columbiana Average
- ●USDA Zones 8b, averaged across Columbiana
- ●One soil character for all of Columbiana
- ●Frost dates read at Columbiana's scale: Feb 23 to Dec 1
YOUR Parcel
- ✓Your exact zone, not Columbiana's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Columbiana
Pull a site-specific report for your exact address in Columbiana, Alabama — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Columbiana averages can't show:
We read public map data around Columbiana — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Columbiana average
How we know this about Columbiana
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 Shelby 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 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 Columbiana
When does frost risk typically end in Columbiana?
The last hard freeze (28°F) in Columbiana typically lands around Feb 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 Mar 16.
When is the first frost in Columbiana?
The first hard freeze (28°F) in Columbiana typically arrives around Dec 1, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 17, so the watching starts about Nov 1 — about 281 days after the spring freeze cleared.
How long is the growing season in Columbiana?
Measured between 28°F hard freezes, Columbiana sees about 281 frost-free days — roughly Feb 23 through Dec 1, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 16 to Nov 17, about 246 days.
Is the soil safe to grow vegetables in Columbiana?
The federal record around Columbiana is a meaningful one — 162 documented sites, mostly Underground Storage Tanks entries (90), the nearest Underground Storage Tanks record about 0.7 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 Columbiana?
From about Nov 1 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 1 (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 1. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Columbiana's scale — its 8b band and its 281-day season. Your yard writes its own version of Columbiana'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 Columbiana’s own scale
5 of the readings below were taken at Columbiana's own scale — the 11,544 acres it covers and 162 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Columbiana's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 162 documented contamination sites on the federal record near Columbiana, the closest Underground Storage Tanks record about 0.7 miles out from the town centreFederal environmental registers
- Columbiana's boundary and the 11,544 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~281-day seasonGrowable Ground crop-matching engine
- The ecoregion at Columbiana's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Columbiana has no normal of its own, so its county's is the closest measured readfrom Shelby County
- Soil character — no town-scale survey exists, so Columbiana's 11,544 acres read through its county's SSURGO summaryfrom Shelby County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Shelby 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 Shelby County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Columbiana's 11,544 acreswhy one lot differs from the next →
- Which side of Columbiana you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 11,544 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.7 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 Columbiana-wide figureread your own land →
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