Mount Olive, Alabama, sits in USDA hardiness zone 8a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Well-matched crops include cabbage, fig, california poppy, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Mount Olive, 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 Mount Olive 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 Mount Olive — soil, climate, flood, and parcel records. How we handle your address.
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Mount Olive — the short answer
Mount Olive, Alabama: USDA zone 8a, about 270 days between hard freezes, across 6K acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 2
- Jefferson County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 27
- Jefferson County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~270
- Jefferson County normal — NOAA 1991–2020, nearest to this town
- Town area
- 6K 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 Jefferson County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8a is Mount Olive's average, not your lot's — a low corner or a tree line moves it. Against Mount Olive's 270-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Mount Olive
Each reading below is measured for Mount Olive itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsMount Olive runs about 270 days between hard freezes (read from Jefferson County, the closest normal to Mount Olive) — 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
MeasuredMount Olive 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 Mount Olive is in
Mount Olive sits in the Southwestern Appalachians — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Mount Olive's own centroid rather than borrowed from Jefferson County.
What Grows in Mount Olive
Every plant below cleared Mount Olive's own zone 8a and its 270-day season. Each card opens that plant's Alabama profile. How we score.
Is it too late to plant in Mount Olive?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 2; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 2 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 27 — long-season crops need about 90 days of runway, quick greens only 30. In a climate this gentle, “too late” hardly applies — the question becomes which crops prefer the cooler months ahead.
What's on the federal record near Mount Olive
Closest first, within ~10 miles of Mount Olive. Listing isn't leaking, and distance isn't exposure.
- ROTOR WING INCORPORATEDBrownfields · 0.6 mi
- ROTOR WING INCUnderground Storage Tanks · 0.7 mi
- L & L SALVAGEUnderground Storage Tanks · 0.8 mi
- WAVAHO MT. OLIVE QUICK STOPUnderground Storage Tanks · 1.1 mi
- MT OLIVE GROCERY CITGOUnderground Storage Tanks · 1.2 mi
- ICEHOUSE LLCUnderground Storage Tanks · 1.3 mi
- VUZ-VORTAC FACILITYUnderground Storage Tanks · 1.4 mi
- MT OLIVE CITGOUnderground Storage Tanks · 1.7 mi
- JOHNNY HORTONUnderground Storage Tanks · 2.1 mi
- MT OLIVE CHEVRONUnderground Storage Tanks · 2.3 mi
- FIELDSTOWN SHELLUnderground Storage Tanks · 2.9 mi
- KJ'S ONE STOPUnderground Storage Tanks · 3.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Mount Olive'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 Mount Olive.
Sources Checked
within ~10 miles of Mount Olive
Severity Distribution
within ~10 miles of Mount Olive
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Mount Olive, two things run higher than the national average within ~10 miles of Mount Olive — Superfund (16 sites) and Toxics Release Inventory (68 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Mount Olive
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 Mount Olive average
Your land is one point inside Mount Olive
Everything above resolves to Mount Olive as a whole — one PHZM band, read across 6K acres, with hard-freeze dates borrowed from Jefferson 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 Mount Olive Average
Mount Olive Average
- ●USDA Zones 8a, averaged across Mount Olive
- ●One soil character for all of Mount Olive
- ●Frost dates read at Mount Olive's scale: Mar 2 to Nov 27
YOUR Parcel
- ✓Your exact zone, not Mount Olive's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Mount Olive
Pull a site-specific report for your exact address in Mount Olive, Alabama — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Mount Olive averages can't show:
We read public map data around Mount Olive — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Mount Olive average
How we know this about Mount Olive
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 Jefferson 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 Mount Olive
When does frost risk typically end in Mount Olive?
The last hard freeze (28°F) in Mount Olive typically lands around Mar 2, 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 23.
When is the first frost in Mount Olive?
The first hard freeze (28°F) in Mount Olive typically arrives around Nov 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 13, so the watching starts about Oct 28 — about 270 days after the spring freeze cleared.
How long is the growing season in Mount Olive?
Measured between 28°F hard freezes, Mount Olive sees about 270 frost-free days — roughly Mar 2 through Nov 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 23 to Nov 13, about 235 days.
Is the soil safe to grow vegetables in Mount Olive?
The federal record around Mount Olive is a meaningful one — 643 documented sites, mostly Underground Storage Tanks entries (372), the nearest Brownfields record about 0.6 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 Mount Olive?
From about Oct 28 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 27 (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 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Mount Olive's scale — its 8a band and its 270-day season. Your yard writes its own version of Mount Olive'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 Mount Olive’s own scale
5 of the readings below were taken at Mount Olive's own scale — the 5,950 acres it covers and 643 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Mount Olive's own USDA hardiness band, zones 8aUSDA PHZM 2023
- 643 documented contamination sites on the federal record near Mount Olive, the closest Brownfields record about 0.6 miles out from the town centreFederal environmental registers
- Mount Olive's boundary and the 5,950 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~270-day seasonGrowable Ground crop-matching engine
- The ecoregion at Mount Olive's own centroid, the Southwestern AppalachiansUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Mount Olive has no normal of its own, so its county's is the closest measured readfrom Jefferson County
- Soil character — no town-scale survey exists, so Mount Olive's 5,950 acres read through its county's SSURGO summaryfrom Jefferson County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Jefferson 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 Jefferson County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Mount Olive's 5,950 acreswhy one lot differs from the next →
- Which side of Mount Olive you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,950 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.6 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 Mount Olive-wide figureread your own land →
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