Stonewall, Oklahoma, sits in USDA hardiness zone 7b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Growers here do well with cabbage, prickly pear, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Stonewall, 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 Stonewall 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 Stonewall — soil, climate, flood, and parcel records. How we handle your address.
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Stonewall — the short answer
Stonewall, Oklahoma: USDA zone 7b, about 242 days between hard freezes, across 304 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~242
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 304 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 7b is Stonewall's average, not your lot's — a low corner or a tree line moves it. Against Stonewall's 242-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Stonewall
Each reading below is measured for Stonewall itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredStonewall runs about 242 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
MeasuredStonewall sits in USDA hardiness zone 7b.
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 Stonewall is in
Stonewall sits in the Arkansas Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Stonewall's own centroid, and it is not what its county reads: Pontotoc County is mostly Cross Timbers. The wider page above you is answering a different question about different ground.
What Grows in Stonewall
Every plant below cleared Stonewall's own zone 7b and its 242-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Stonewall?
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 Feb 15; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 12 — 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 Stonewall
Closest first, within ~10 miles of Stonewall. Listing isn't leaking, and distance isn't exposure.
- Stonewall Public SchoolsUnderground Storage Tanks · 950 ft
- A W EllisUnderground Storage Tanks · 1200 ft
- Walter JordanUnderground Storage Tanks · 1200 ft
- Ray Quick StopUnderground Storage Tanks · 1300 ft
- Longhorn DeliUnderground Storage Tanks · 1300 ft
- Petrolite CorpUnderground Storage Tanks · 2200 ft
- Short StopUnderground Storage Tanks · 2600 ft
- Braum FarmUnderground Storage Tanks · 1.9 mi
- Mobil East Fitts Office YardUnderground Storage Tanks · 2.9 mi
- Dennis 90 Lease Fitts FieldUnderground Storage Tanks · 3.4 mi
- PONTOTOC CO RWD # 7PFAS · 3.9 mi
- James W. EdwardsUnderground Storage Tanks · 4.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Stonewall'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 Stonewall.
Total Sites
72
within ~10 miles of Stonewall
Risk Level
Moderate
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Stonewall
Severity Distribution
within ~10 miles of Stonewall
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Stonewall, Nitrate runs higher than the national average — 32 sites within ~10 miles of Stonewall. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
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 Stonewall
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 Stonewall average
Your land is one point inside Stonewall
Everything above resolves to Stonewall as a whole — one PHZM band and one 28°F frost record, read across 304 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 Stonewall Average
Stonewall Average
- ●USDA Zones 7b, averaged across Stonewall
- ●One soil character for all of Stonewall
- ●Frost dates read at Stonewall's scale: Mar 15 to Nov 12
YOUR Parcel
- ✓Your exact zone, not Stonewall's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Stonewall
Pull a site-specific report for your exact address in Stonewall, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Stonewall averages can't show:
We read public map data around Stonewall — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Stonewall average
How we know this about Stonewall
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 Stonewall’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 Stonewall
When does frost risk typically end in Stonewall?
The last hard freeze (28°F) in Stonewall typically lands around Mar 15, 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 Apr 5.
When is the first frost in Stonewall?
The first hard freeze (28°F) in Stonewall typically arrives around Nov 12, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 29, so the watching starts about Oct 13 — about 242 days after the spring freeze cleared.
How long is the growing season in Stonewall?
Measured between 28°F hard freezes, Stonewall sees about 242 frost-free days — roughly Mar 15 through Nov 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 5 to Oct 29, about 207 days.
Is the soil safe to grow vegetables in Stonewall?
The federal record around Stonewall shows 72 documented sites, mostly Underground Storage Tanks entries (35), the nearest Underground Storage Tanks record about 0.2 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.
How do I protect my plants from frost in Stonewall?
From about Oct 13 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 12 (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 12. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Stonewall's scale — its 7b band and its 242-day season. Your yard writes its own version of Stonewall'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 Stonewall’s own scale
6 of the readings below were taken at Stonewall's own scale — its own ~242-day season between 28°F freezes, the 304 acres it covers and 72 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Stonewall's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Stonewall's own 28°F hard-freeze dates, about Mar 15 and Nov 12 and the ~242-day span between themNOAA 1991–2020 Climate Normals
- 72 documented contamination sites on the federal record near Stonewall, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Stonewall's boundary and the 304 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~242-day seasonGrowable Ground crop-matching engine
- Stonewall sits in the Arkansas Valley — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Stonewall's 304 acres read through its county's SSURGO summaryfrom Pontotoc County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Pontotoc 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 Pontotoc County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Stonewall's 304 acreswhy one lot differs from the next →
- Which side of Stonewall you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 304 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 Stonewall-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaStonewall sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides