Lyons Switch, Oklahoma, sits in USDA hardiness zone 7b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
On paper, cabbage, prickly pear, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Lyons Switch, 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 Lyons Switch 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 Lyons Switch — soil, climate, flood, and parcel records. How we handle your address.
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Lyons Switch — the short answer
Lyons Switch, Oklahoma: USDA zone 7b, about 231 days between hard freezes, across 8K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~231
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 8K 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 Lyons Switch's average, not your lot's — a low corner or a tree line moves it. Against Lyons Switch's 231-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lyons Switch
Each reading below is measured for Lyons Switch itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLyons Switch runs about 231 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
MeasuredLyons Switch 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 Lyons Switch is in
Lyons Switch sits in the Ozark Highlands — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Lyons Switch's own centroid rather than borrowed from Adair County.
What Grows in Lyons Switch
Every plant below cleared Lyons Switch's own zone 7b and its 231-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Lyons Switch?
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 24; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 24 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 10 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
What's on the federal record near Lyons Switch
Closest first, within ~10 miles of Lyons Switch. Listing isn't leaking, and distance isn't exposure.
- WINIGER POULTRY AND DAIRY FARMCAFO · 0.7 mi
- Billy J EubanksUnderground Storage Tanks · 1.9 mi
- IK C-StoreUnderground Storage Tanks · 2.9 mi
- Stilwell Schools Bus BarnUnderground Storage Tanks · 3.3 mi
- Big B Food & Deli #1Underground Storage Tanks · 3.3 mi
- Former C-MartUnderground Storage Tanks · 3.4 mi
- Bert's 66Underground Storage Tanks · 3.5 mi
- Sunshine Store #17Underground Storage Tanks · 3.5 mi
- Short StopUnderground Storage Tanks · 3.5 mi
- Guy Strickland Chev-Olds Co IncUnderground Storage Tanks · 3.6 mi
- City Of StilwellUnderground Storage Tanks · 3.6 mi
- SFC SCHWAN'S GLOBAL SUPPLY CHAIN, INCBrownfields · 3.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Lyons Switch'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 Lyons Switch.
Total Sites
56
within ~10 miles of Lyons Switch
Risk Level
Moderate
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Lyons Switch
Severity Distribution
within ~10 miles of Lyons Switch
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Lyons Switch, two things run higher than the national average within ~10 miles of Lyons Switch — CAFO (3 sites) and Underground Storage Tanks (46 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Lyons Switch
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 Lyons Switch average
Your land is one point inside Lyons Switch
Everything above resolves to Lyons Switch as a whole — one PHZM band and one 28°F frost record, read across 8K 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 Lyons Switch Average
Lyons Switch Average
- ●USDA Zones 7b, averaged across Lyons Switch
- ●One soil character for all of Lyons Switch
- ●Frost dates read at Lyons Switch's scale: Mar 24 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Lyons Switch's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lyons Switch
Pull a site-specific report for your exact address in Lyons Switch, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lyons Switch averages can't show:
We read public map data around Lyons Switch — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lyons Switch average
How we know this about Lyons Switch
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 Lyons Switch’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 Lyons Switch
When does frost risk typically end in Lyons Switch?
The last hard freeze (28°F) in Lyons Switch typically lands around Mar 24, 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 14.
When is the first frost in Lyons Switch?
The first hard freeze (28°F) in Lyons Switch typically arrives around Nov 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 27, so the watching starts about Oct 11 — about 231 days after the spring freeze cleared.
How long is the growing season in Lyons Switch?
Measured between 28°F hard freezes, Lyons Switch sees about 231 frost-free days — roughly Mar 24 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 14 to Oct 27, about 196 days.
Is the soil safe to grow vegetables in Lyons Switch?
The federal record around Lyons Switch shows 56 documented sites, mostly Underground Storage Tanks entries (46), the nearest CAFO record about 0.7 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 Lyons Switch?
From about Oct 11 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 10 (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 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Lyons Switch's scale — its 7b band and its 231-day season. Your yard writes its own version of Lyons Switch'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 Lyons Switch’s own scale
6 of the readings below were taken at Lyons Switch's own scale — its own ~231-day season between 28°F freezes, the 8,131 acres it covers and 56 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Lyons Switch's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Lyons Switch's own 28°F hard-freeze dates, about Mar 24 and Nov 10 and the ~231-day span between themNOAA 1991–2020 Climate Normals
- 56 documented contamination sites on the federal record near Lyons Switch, the closest CAFO record about 0.7 miles out from the town centreFederal environmental registers
- Lyons Switch's boundary and the 8,131 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~231-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lyons Switch's own centroid, the Ozark HighlandsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Lyons Switch's 8,131 acres read through its county's SSURGO summaryfrom Adair County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Adair 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 Adair County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lyons Switch's 8,131 acreswhy one lot differs from the next →
- Which side of Lyons Switch you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 8,131 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest CAFO record about 0.7 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 Lyons Switch-wide figureread your own land →
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