Choctaw County, in Oklahoma, sits in USDA hardiness zone 8a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
On paper, cabbage, fig, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Choctaw County lies within the Southeastern Oklahoma / Ouachita Mountains (Kiamichi Country) — a regional growing area with its own character.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Choctaw County holds more than one microclimate.
Soils and elevations shift across Choctaw 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 Choctaw County — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Choctaw County — the short answer
Choctaw County, Oklahoma: USDA zone 8a, about 267 days between hard freezes, across 493K acres.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 1
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Nov 23
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~267
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 493K 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 Choctaw County's average, not your lot's — a low corner or a tree line moves it. Against Choctaw County's 267-day season, see what your own ground reads.
Heat and winter chill in Choctaw County
Across a year, Choctaw County accumulates about 5,234 growing degree days above 50°F, about 514 more than the middle Oklahoma county — ahead of 70 of Oklahoma’s 77 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 1,494 hours below 45°F, 425 fewer than the Oklahoma middle of 1,919. 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 Choctaw County
Across Choctaw County, the ground is predominantly Alfisols, where Bosville, Bernow, and Hollywood are the most extensive named soil series. The soil is generally well drained with a fine sandy loam surface. Topsoil pH runs about 5.6–7.2, slightly acidic. Rainfall drains through hydrologic group D soils.
Soil order
Alfisols
Drainage
Well drained
Prime farmland
44%
Hydric soils
15%
Soil still varies lot by lot — soil types explained.
How the ground varies across Choctaw County
The USDA soil survey maps 42% of Choctaw County as well drained — but another 54% drains differently: 34% moderately well drained, 12% somewhat poorly drained.
Bosville is the most extensive named soil at 15% of mapped acres, then Bernow (11%) and Hollywood (8%).
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 Choctaw County
Each reading below is measured for Choctaw 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 Choctaw 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 Choctaw County runs about pH 5.6–7.2, close to neutral.
This is the range most vegetables prefer — one correction you probably do not have to make, which is genuinely good news for a new bed.
Keep it there with compost rather than lime or sulfur, and only amend if your own soil test says otherwise.
USDA NRCS SSURGO
Season length
MeasuredChoctaw County runs about 267 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
MeasuredChoctaw 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 Choctaw County is in
Choctaw County sits in the South Central Plains — EPA Level III, inside the wider Eastern Temperate Forests. One consistent ecological setting across the whole county.
What Grows in Choctaw County
We scored all 1,086 plants against Choctaw County's own USDA zone 8a and its own 267-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 Oklahoma profile.
Is it too late to plant in Choctaw 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 Feb 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 1 (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.
Documented around Choctaw County
- monarch butterfly1 documented records
Sighting records, so they follow observers as much as insects.
What gets applied to farmland in Choctaw County
USGS estimates 14,603 lb of 2,4-d on Choctaw County farmland in 2019, its largest by weight, ahead of Glyphosate (8,092 lb) and Dicamba (4,279 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 Choctaw County — and how to grow with it.
We checked the federal record across Choctaw County — 87 documented sites across 4 of the 9 source types we track.
The most significant on record: 3 Toxics Release Inventory facilities. Active industrial facilities reporting chemical releases to air, water, and land.
The federal record across Choctaw 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 Choctaw County
Closest first, across Choctaw County. Listing isn't leaking, and distance isn't exposure.
- US ARMY COE HUGO PROJECT OFFICEBrownfields · 1900 ft
- TRINITYRAIL MAINTENANCE SERVICES INC / TRINITYRAIL MAINTENANCE SERVICES HUGOBrownfields · 1.0 mi
- Hugo Operating CenterUnderground Storage Tanks · 1.1 mi
- 4 StationUnderground Storage Tanks · 1.3 mi
- CHOCTAW DEFENSEToxics Release Inventory · 1.3 mi
- CHOCTAW MFG AND DEV CORP / CHOCTAW METAL AND GOODS MFG FACLTYBrownfields · 1.4 mi
- Hugo Travel Plaza & Casino TooUnderground Storage Tanks · 1.5 mi
- CENTRAL FOREST PRODUCTS INCToxics Release Inventory · 1.8 mi
- Jacks Quick MartUnderground Storage Tanks · 2.0 mi
- KIAMICHI RAILROAD COMPANY INCBrownfields · 2.3 mi
- Kerr Mc Gee #6309Underground Storage Tanks · 2.3 mi
- A V CrewsUnderground Storage Tanks · 2.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Choctaw 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 Choctaw County.
Total Sites
87
across Choctaw County
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
across Choctaw County
Severity Distribution
across Choctaw County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Choctaw County, Underground Storage Tanks runs higher than the national average — 75 sites across Choctaw County. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Choctaw 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 Choctaw County average
Your land is one point inside Choctaw County
Everything above resolves to Choctaw County as a whole — one PHZM band and one county frost record, read across 493K 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 Choctaw County Average
Choctaw County Average
- ●USDA Zones 8a, averaged across Choctaw County
- ●One soil character for all of Choctaw County
- ●Frost dates read at Choctaw County's scale: Mar 1 to Nov 23
YOUR Parcel
- ✓Your exact zone, not Choctaw County's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Choctaw County
Pull a site-specific report for your exact address in Choctaw County, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Choctaw County averages can't show:
We read public map data around Choctaw County — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Choctaw County average
How we know this about Choctaw 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 Choctaw County carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Choctaw County
When does frost risk typically end in Choctaw County?
The last hard freeze (28°F) in Choctaw County typically lands around Mar 1, 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 22.
How long is the growing season in Choctaw County?
Measured between 28°F hard freezes, Choctaw County sees about 267 frost-free days — roughly Mar 1 through Nov 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 22 to Nov 9, about 232 days.
Is the soil safe to grow vegetables in Choctaw County?
The federal record around Choctaw County shows 87 documented sites, mostly Underground Storage Tanks entries (75), the nearest Brownfields record about 0.4 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 Choctaw County's scale — its 8a band and its 267-day season. Your yard writes its own version of Choctaw 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 Oklahoma's frost window, season length, and soil profile against the plant's real requirements.
What this page reads at Choctaw County’s own scale
9 of the readings below were taken at Choctaw County's own scale — its own ~267-day span between 28°F freezes, the 3 most extensive soil series mapped here and 87 documented sites inside its boundary; one is borrowed from a wider read, named and linked below.
Measured here
- Choctaw County's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Choctaw County's own 28°F hard-freeze dates and its ~267-day span between themNOAA 1991–2020 Climate Normals
- The soil order, drainage, surface pH, and the 3 most extensive named soil series mapped in Choctaw CountyUSDA NRCS SSURGO
- 87 documented contamination sites inside the county boundary, distance-sorted from its center — the closest Brownfields record about 0.4 miles outFederal environmental registers
- Choctaw County's boundary and the 493,044 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~267-day seasonGrowable Ground crop-matching engine
- Choctaw County sitting wholly inside the South Central PlainsUS EPA Level III Ecoregions
- Open occurrence records documented in Choctaw County for a tracked speciesGBIF derived datasets (CC0 / CC BY 4.0)
- Which agricultural compounds go onto Choctaw County farmland, and roughly how muchUSGS NAWQA EPest county estimates
Inherited from a wider read
- The growing challenges every Oklahoma grower plans around — written at state scale, so they stay on the state guidefrom Oklahoma
What this page can’t tell you
- How the season shifts across Choctaw County — the ~267 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 Choctaw County's 493,044 acreswhy one lot differs from the next →
- Which of those 87 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 Choctaw Countyread your own land →