Fort Towson, Oklahoma, sits in USDA hardiness zone 8a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Growers here do well with cabbage, fig, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Fort Towson, 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 Fort Towson 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 Fort Towson — soil, climate, flood, and parcel records. How we handle your address.
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Fort Towson — the short answer
Fort Towson, Oklahoma: USDA zone 8a, about 257 days between hard freezes, across 4K acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~257
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 4K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 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 Fort Towson's average, not your lot's — a low corner or a tree line moves it. Against Fort Towson's 257-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Fort Towson
Each reading below is measured for Fort Towson itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredFort Towson runs about 257 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredFort Towson 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 Fort Towson is in
Fort Towson sits in the South Central Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Fort Towson's own centroid rather than borrowed from Choctaw County.
What Grows in Fort Towson
Every plant below cleared Fort Towson's own zone 8a and its 257-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Fort Towson?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 7 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 19 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
What's on the federal record near Fort Towson
Closest first, within ~10 miles of Fort Towson. Listing isn't leaking, and distance isn't exposure.
- Fort Towson Public Schools I-2Underground Storage Tanks · 0.8 mi
- The Corner StoreUnderground Storage Tanks · 0.8 mi
- VacantUnderground Storage Tanks · 1.1 mi
- Choctaw County District #3Underground Storage Tanks · 1.1 mi
- Joe BlackardUnderground Storage Tanks · 1.6 mi
- Fort Towson NurseryUnderground Storage Tanks · 2.7 mi
- WESTERN FARMERS ELECTRIC COOPToxics Release Inventory · 2.7 mi
- WESTERN FARMERS ELECTRIC COOPBrownfields · 2.7 mi
- WFEC Hugo Coal-Fired PlantUnderground Storage Tanks · 2.8 mi
- Swink SchoolUnderground Storage Tanks · 4.4 mi
- Swink Gro & FeedUnderground Storage Tanks · 4.4 mi
- Carson's Bait Shop (Lakeshore)Underground Storage Tanks · 5.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Fort Towson'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 Fort Towson.
Total Sites
26
within ~10 miles of Fort Towson
Risk Level
Low
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Fort Towson
Severity Distribution
within ~10 miles of Fort Towson
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Fort Towson, Underground Storage Tanks runs higher than the national average — 21 sites within ~10 miles of Fort Towson. 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 Fort Towson
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 Fort Towson average
Your land is one point inside Fort Towson
Everything above resolves to Fort Towson as a whole — one PHZM band and one 28°F frost record, read across 4K 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 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 Fort Towson Average
Fort Towson Average
- ●USDA Zones 8a, averaged across Fort Towson
- ●One soil character for all of Fort Towson
- ●Frost dates read at Fort Towson's scale: Mar 7 to Nov 19
YOUR Parcel
- ✓Your exact zone, not Fort Towson's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Fort Towson
Pull a site-specific report for your exact address in Fort Towson, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Fort Towson averages can't show:
We read public map data around Fort Towson — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Fort Towson average
How we know this about Fort Towson
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 Fort Towson’s own record; 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 Fort Towson
When does frost risk typically end in Fort Towson?
The last hard freeze (28°F) in Fort Towson typically lands around Mar 7, 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 28.
When is the first frost in Fort Towson?
The first hard freeze (28°F) in Fort Towson typically arrives around Nov 19, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 5, so the watching starts about Oct 20 — about 257 days after the spring freeze cleared.
How long is the growing season in Fort Towson?
Measured between 28°F hard freezes, Fort Towson sees about 257 frost-free days — roughly Mar 7 through Nov 19, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 28 to Nov 5, about 222 days.
Is the soil safe to grow vegetables in Fort Towson?
The federal record around Fort Towson is light — 26 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (21), the nearest Underground Storage Tanks record about 0.8 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do I protect my plants from frost in Fort Towson?
From about Oct 20 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 19 (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 19. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Fort Towson's scale — its 8a band and its 257-day season. Your yard writes its own version of Fort Towson'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 Fort Towson’s own scale
6 of the readings below were taken at Fort Towson's own scale — its own ~257-day season between 28°F freezes, the 3,599 acres it covers and 26 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Fort Towson's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Fort Towson's own 28°F hard-freeze dates, about Mar 7 and Nov 19 and the ~257-day span between themNOAA 1991–2020 Climate Normals
- 26 documented contamination sites on the federal record near Fort Towson, the closest Underground Storage Tanks record about 0.8 miles out from the town centreFederal environmental registers
- Fort Towson's boundary and the 3,599 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~257-day seasonGrowable Ground crop-matching engine
- The ecoregion at Fort Towson's own centroid, the South Central PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Fort Towson's 3,599 acres read through its county's SSURGO summaryfrom Choctaw County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Choctaw County
- The growing challenges every Oklahoma grower plans around — written at state scale, so they stay on the state guidefrom Oklahoma
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Choctaw County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Fort Towson's 3,599 acreswhy one lot differs from the next →
- Which side of Fort Towson you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,599 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.8 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 Fort Towson-wide figureread your own land →