Kemper County, in Mississippi, sits in USDA hardiness zone 8b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
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.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Kemper County holds more than one microclimate.
Soils and elevations shift across Kemper 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 Kemper County — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Kemper County — the short answer
Kemper County, Mississippi: USDA zone 8b, about 270 days between hard freezes, across 490K acres.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 28
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Nov 25
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~270
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 490K 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 8b is Kemper County's average, not your lot's — a low corner or a tree line moves it. Against Kemper County's 270-day season, see what your own ground reads.
Heat and winter chill in Kemper County
Across a year, Kemper County accumulates about 5,374 growing degree days above 50°F, about 24 fewer than the middle Mississippi county — ahead of 38 of Mississippi’s 82 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 1,198 hours below 45°F, 6 more than the Mississippi middle of 1,192. 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 Kemper County
Across Kemper County, the ground is predominantly Ultisols, where Sweatman, Smithdale, and Wilcox are the most extensive named soil series. The soil is generally well drained with a fine sandy loam surface. Topsoil pH runs about 5.0–5.1, very strongly acidic. Rainfall drains through hydrologic group D soils.
Soil order
Ultisols
Drainage
Well drained
Prime farmland
23%
Hydric soils
7%
Soil still varies lot by lot — soil types explained.
How the ground varies across Kemper County
The USDA soil survey maps 40% of Kemper County as well drained — but another 59% drains differently: 34% somewhat poorly drained, 19% moderately well drained.
Sweatman is the most extensive named soil at 17% of mapped acres, then Smithdale (16%) and Wilcox (14%).
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 Kemper County
Each reading below is measured for Kemper 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 Kemper County are well drained, in hydrologic group D — 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 Kemper County runs about pH 5.0–5.1, 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
MeasuredKemper County runs about 270 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
MeasuredKemper County 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 Kemper County is in
Kemper County sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. One consistent ecological setting across the whole county.
What Grows in Kemper County
We scored all 1,086 plants against Kemper County's own USDA zone 8b and its own 270-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 Mississippi profile.
Is it too late to plant in Kemper County?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Jan 31; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 28 (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. In a climate this gentle, “too late” hardly applies — the question becomes which crops prefer the cooler months ahead.
What gets applied to farmland in Kemper County
USGS estimates 8,715 lb of 2,4-d on Kemper County farmland in 2019, its largest by weight, ahead of Glyphosate (4,424 lb) and Dicamba (739 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 Kemper County — and how to grow with it.
We checked the federal record across Kemper County — 133 documented sites across 5 of the 9 source types we track.
The most significant on record: 6 Toxics Release Inventory facilities. Active industrial facilities reporting chemical releases to air, water, and land.
The federal record across Kemper County is a modest one — a typical footprint for a growing area. Nothing here calls for alarm; it's worth knowing which recorded sites sit closest to where you grow, and each one on the map carries its type and location. If one turns out to be a near neighbor, a one-time soil test settles the question.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
What's on the federal record near Kemper County
Closest first, across Kemper County. Listing isn't leaking, and distance isn't exposure.
- Bst Dekalb Radio Tower 74654Underground Storage Tanks · 0.8 mi
- Blue & Gray StoreUnderground Storage Tanks · 1.0 mi
- Dekalb Maintenance Area Hq MshdUnderground Storage Tanks · 1.5 mi
- Mattar East Side GroceryUnderground Storage Tanks · 1.6 mi
- Kemper County School Bus ShopUnderground Storage Tanks · 1.7 mi
- Mcdade Oil CompanyUnderground Storage Tanks · 1.8 mi
- Bulk FacilityUnderground Storage Tanks · 1.8 mi
- Handy MartUnderground Storage Tanks · 1.9 mi
- Kemper County Sheriff's DepartmentUnderground Storage Tanks · 1.9 mi
- NanakUnderground Storage Tanks · 1.9 mi
- Jays Downtown Service CenterUnderground Storage Tanks · 2.0 mi
- Beat 5 BarnUnderground Storage Tanks · 2.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Kemper 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 Kemper County.
Total Sites
133
across Kemper County
Risk Level
Moderate
Highest-severity
6 Toxics Release Inventory facilities
Sources Checked
across Kemper County
Severity Distribution
across Kemper County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Kemper County, Nitrate runs higher than the national average — 56 sites across Kemper County. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Kemper 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 Kemper County average
Your land is one point inside Kemper County
Everything above resolves to Kemper County as a whole — one PHZM band and one county frost record, read across 490K 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 Kemper County Average
Kemper County Average
- ●USDA Zones 8b, averaged across Kemper County
- ●One soil character for all of Kemper County
- ●Frost dates read at Kemper County's scale: Feb 28 to Nov 25
YOUR Parcel
- ✓Your exact zone, not Kemper County's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Kemper County
Pull a site-specific report for your exact address in Kemper County, Mississippi — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Kemper County averages can't show:
We read public map data around Kemper County — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Kemper County average
How we know this about Kemper 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 Kemper County carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Kemper County
When does frost risk typically end in Kemper County?
The last hard freeze (28°F) in Kemper County typically lands around Feb 28, 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 21.
How long is the growing season in Kemper County?
Measured between 28°F hard freezes, Kemper County sees about 270 frost-free days — roughly Feb 28 through Nov 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 21 to Nov 11, about 235 days.
Is the soil safe to grow vegetables in Kemper County?
The federal record around Kemper County shows 133 documented sites, mostly Underground Storage Tanks entries (65), the nearest Underground Storage Tanks record about 0.8 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.
Everything above is measured at Kemper County's scale — its 8b band and its 270-day season. Your yard writes its own version of Kemper 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 Mississippi's frost window, season length, and soil profile against the plant's real requirements.
What this page reads at Kemper County’s own scale
8 of the readings below were taken at Kemper County's own scale — its own ~270-day span between 28°F freezes, the 3 most extensive soil series mapped here and 133 documented sites inside its boundary; one is borrowed from a wider read, named and linked below.
Measured here
- Kemper County's own USDA hardiness band, zones 8bUSDA PHZM 2023
- Kemper County's own 28°F hard-freeze dates and its ~270-day span between themNOAA 1991–2020 Climate Normals
- The soil order, drainage, surface pH, and the 3 most extensive named soil series mapped in Kemper CountyUSDA NRCS SSURGO
- 133 documented contamination sites inside the county boundary, distance-sorted from its center — the closest Underground Storage Tanks record about 0.8 miles outFederal environmental registers
- Kemper County's boundary and the 490,356 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~270-day seasonGrowable Ground crop-matching engine
- Kemper County sitting wholly inside the Southeastern PlainsUS EPA Level III Ecoregions
- Which agricultural compounds go onto Kemper County farmland, and roughly how muchUSGS NAWQA EPest county estimates
Inherited from a wider read
- The growing challenges every Mississippi grower plans around — written at state scale, so they stay on the state guidefrom Mississippi
What this page can’t tell you
- How the season shifts across Kemper County — the ~270 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 Kemper County's 490,356 acreswhy one lot differs from the next →
- Which of those 133 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 Kemper Countyread your own land →