Glenwood, Alabama, sits in USDA hardiness zone 8b — a zone band wide enough that plant choice, not possibility, is the interesting question.
The conditions favor cabbage, fig, california poppy, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Glenwood, 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 Glenwood 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 Glenwood — soil, climate, flood, and parcel records. How we handle your address.
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Glenwood — the short answer
Glenwood, Alabama: USDA zone 8b, about 272 days between hard freezes, across 468 acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 24
- Crenshaw County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 23
- Crenshaw County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~272
- Crenshaw County normal — NOAA 1991–2020, nearest to this town
- Town area
- 468 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 Crenshaw County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Glenwood's average, not your lot's — a low corner or a tree line moves it. Against Glenwood's 272-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Glenwood
Each reading below is measured for Glenwood itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsGlenwood runs about 272 days between hard freezes (read from Crenshaw County, the closest normal to Glenwood) — 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
MeasuredGlenwood 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 Glenwood is in
Glenwood sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Glenwood's own centroid rather than borrowed from Crenshaw County.
What Grows in Glenwood
Every plant below cleared Glenwood's own zone 8b and its 272-day season. Each card opens that plant's Alabama profile. How we score.
Is it too late to plant in Glenwood?
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 27; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 24 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 23 — 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 Glenwood
Closest first, within ~10 miles of Glenwood. Listing isn't leaking, and distance isn't exposure.
- NANCYS COUNTRY STOREUnderground Storage Tanks · 950 ft
- GRANT BROTHERSUnderground Storage Tanks · 2100 ft
- ADAM NORSWORTHY FARMCAFO · 1.0 mi
- WARD FARMCAFO · 1.1 mi
- PIKE COUNTY DISTRICT #6Underground Storage Tanks · 1.6 mi
- LESTER FARMSCAFO · 1.8 mi
- JUSTIN RAY FARMCAFO · 2.0 mi
- BRYAN FARMSCAFO · 2.1 mi
- JOSHUA WILSONCAFO · 2.5 mi
- HUGHES FARMCAFO · 2.6 mi
- WARD FARMSCAFO · 2.9 mi
- C L CHILDS GROCERYUnderground Storage Tanks · 3.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Glenwood'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 Glenwood.
Total Sites
107
within ~10 miles of Glenwood
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Glenwood
Severity Distribution
within ~10 miles of Glenwood
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Glenwood, CAFO runs higher than the national average — 35 sites within ~10 miles of Glenwood. That's not a problem with your land — it's information about 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 Glenwood
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 Glenwood average
Your land is one point inside Glenwood
Everything above resolves to Glenwood as a whole — one PHZM band, read across 468 acres, with hard-freeze dates borrowed from Crenshaw 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 Glenwood Average
Glenwood Average
- ●USDA Zones 8b, averaged across Glenwood
- ●One soil character for all of Glenwood
- ●Frost dates read at Glenwood's scale: Feb 24 to Nov 23
YOUR Parcel
- ✓Your exact zone, not Glenwood's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Glenwood
Pull a site-specific report for your exact address in Glenwood, Alabama — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Glenwood averages can't show:
We read public map data around Glenwood — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Glenwood average
How we know this about Glenwood
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 Crenshaw 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 Glenwood
When does frost risk typically end in Glenwood?
The last hard freeze (28°F) in Glenwood typically lands around Feb 24, 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 17.
When is the first frost in Glenwood?
The first hard freeze (28°F) in Glenwood typically arrives around Nov 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 9, so the watching starts about Oct 24 — about 272 days after the spring freeze cleared.
How long is the growing season in Glenwood?
Measured between 28°F hard freezes, Glenwood sees about 272 frost-free days — roughly Feb 24 through Nov 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 17 to Nov 9, about 237 days.
Is the soil safe to grow vegetables in Glenwood?
The federal record around Glenwood is a meaningful one — 107 documented sites, mostly Underground Storage Tanks entries (57), the nearest Underground Storage Tanks 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 Glenwood?
From about Oct 24 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 23 (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 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Glenwood's scale — its 8b band and its 272-day season. Your yard writes its own version of Glenwood'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 Glenwood’s own scale
5 of the readings below were taken at Glenwood's own scale — the 468 acres it covers and 107 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Glenwood's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 107 documented contamination sites on the federal record near Glenwood, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Glenwood's boundary and the 468 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~272-day seasonGrowable Ground crop-matching engine
- The ecoregion at Glenwood's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Glenwood has no normal of its own, so its county's is the closest measured readfrom Crenshaw County
- Soil character — no town-scale survey exists, so Glenwood's 468 acres read through its county's SSURGO summaryfrom Crenshaw County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Crenshaw 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 Crenshaw County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Glenwood's 468 acreswhy one lot differs from the next →
- Which side of Glenwood you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 468 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 Glenwood-wide figureread your own land →