Stigler, Oklahoma, sits in USDA hardiness zone 7b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Expect cabbage, prickly pear, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Stigler, 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 Stigler 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 Stigler — soil, climate, flood, and parcel records. How we handle your address.
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Stigler — the short answer
Stigler, Oklahoma: USDA zone 7b, about 239 days between hard freezes, across 2K acres of city.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 18
- 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
- ~239
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 2K 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 Stigler's average, not your lot's — a low corner or a tree line moves it. Against Stigler's 239-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Stigler
Each reading below is measured for Stigler itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredStigler runs about 239 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
MeasuredStigler 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 Stigler is in
Stigler sits in the Arkansas Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Stigler's own centroid rather than borrowed from Haskell County.
What Grows in Stigler
Every plant below cleared Stigler's own zone 7b and its 239-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Stigler?
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 18; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 18 (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. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
What's on the federal record near Stigler
Closest first, within ~10 miles of Stigler. Listing isn't leaking, and distance isn't exposure.
- Stigler Public SchoolsUnderground Storage Tanks · 1500 ft
- Main Street Service StationUnderground Storage Tanks · 2400 ft
- Casey's General Store #3739Underground Storage Tanks · 2500 ft
- Total ExpressUnderground Storage Tanks · 2500 ft
- Stigler Service StationUnderground Storage Tanks · 2600 ft
- SHEARWOOD PAINT & BODYBrownfields · 0.5 mi
- Stigler Railroad Right Of WayUnderground Storage Tanks · 0.5 mi
- E-Z Mart #4425Underground Storage Tanks · 0.5 mi
- Cookson Hills Electric CoopUnderground Storage Tanks · 0.5 mi
- Johnson's Lumber CompanyUnderground Storage Tanks · 0.5 mi
- M. Douglas MartinUnderground Storage Tanks · 0.5 mi
- Vaughn MotorsUnderground Storage Tanks · 0.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Stigler'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 Stigler.
Sources Checked
within ~10 miles of Stigler
Severity Distribution
within ~10 miles of Stigler
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Stigler, Nitrate runs higher than the national average — 20 sites within ~10 miles of Stigler. 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 Stigler
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 Stigler average
Your land is one point inside Stigler
Everything above resolves to Stigler as a whole — one PHZM band and one 28°F frost record, read across 2K 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 city 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 Stigler Average
Stigler Average
- ●USDA Zones 7b, averaged across Stigler
- ●One soil character for all of Stigler
- ●Frost dates read at Stigler's scale: Mar 18 to Nov 12
YOUR Parcel
- ✓Your exact zone, not Stigler's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Stigler
Pull a site-specific report for your exact address in Stigler, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Stigler averages can't show:
We read public map data around Stigler — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Stigler average
How we know this about Stigler
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Stigler’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 city grain anywhere on this page — there is no city-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 Stigler
When does frost risk typically end in Stigler?
The last hard freeze (28°F) in Stigler typically lands around Mar 18, 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 8.
When is the first frost in Stigler?
The first hard freeze (28°F) in Stigler 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 239 days after the spring freeze cleared.
How long is the growing season in Stigler?
Measured between 28°F hard freezes, Stigler sees about 239 frost-free days — roughly Mar 18 through Nov 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 8 to Oct 29, about 204 days.
Is the soil safe to grow vegetables in Stigler?
The federal record around Stigler shows 58 documented sites, mostly Underground Storage Tanks entries (33), the nearest Underground Storage Tanks record about 0.3 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 Stigler?
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 Stigler's scale — its 7b band and its 239-day season. Your yard writes its own version of Stigler'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 Stigler’s own scale
6 of the readings below were taken at Stigler's own scale — its own ~239-day season between 28°F freezes, the 1,729 acres it covers and 58 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Stigler's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Stigler's own 28°F hard-freeze dates, about Mar 18 and Nov 12 and the ~239-day span between themNOAA 1991–2020 Climate Normals
- 58 documented contamination sites on the federal record near Stigler, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Stigler's boundary and the 1,729 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~239-day seasonGrowable Ground crop-matching engine
- The ecoregion at Stigler's own centroid, the Arkansas ValleyUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Stigler's 1,729 acres read through its county's SSURGO summaryfrom Haskell County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Haskell 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 Haskell County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Stigler's 1,729 acreswhy one lot differs from the next →
- Which side of Stigler you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,729 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.3 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 Stigler-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaStigler sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides