Longtown, Oklahoma, sits in USDA hardiness zone 7b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Well-matched crops include cabbage, prickly pear, california poppy, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Longtown, 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 Longtown 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 Longtown — soil, climate, flood, and parcel records. How we handle your address.
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Longtown — the short answer
Longtown, Oklahoma: USDA zone 7b, about 254 days between hard freezes, across 17K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 10
- 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
- ~254
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 17K 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 Longtown's average, not your lot's — a low corner or a tree line moves it. Against Longtown's 254-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Longtown
Each reading below is measured for Longtown itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLongtown runs about 254 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
MeasuredLongtown 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 Longtown is in
Longtown sits in the Arkansas Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Longtown's own centroid rather than borrowed from Pittsburg County.
What Grows in Longtown
Every plant below cleared Longtown's own zone 7b and its 254-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Longtown?
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 10; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 10 (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. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
What's on the federal record near Longtown
Closest first, within ~10 miles of Longtown. Listing isn't leaking, and distance isn't exposure.
- Allfuels #2Underground Storage Tanks · 1100 ft
- Long Town TotalUnderground Storage Tanks · 1100 ft
- Longtown SinclairUnderground Storage Tanks · 2000 ft
- #9 MarinaUnderground Storage Tanks · 1.7 mi
- Pixie Woods 66Underground Storage Tanks · 2.2 mi
- Eufaula Cove MarinaUnderground Storage Tanks · 4.2 mi
- Lift StationUnderground Storage Tanks · 4.3 mi
- Mr. Quick #28 - EufaulaUnderground Storage Tanks · 4.3 mi
- Fiesta Mart #31-5869Underground Storage Tanks · 4.5 mi
- Eufaula Public SchoolsUnderground Storage Tanks · 4.6 mi
- Monroe's Service StationUnderground Storage Tanks · 4.6 mi
- Kwick Stop #69Underground Storage Tanks · 4.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Longtown'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 Longtown.
Total Sites
58
within ~10 miles of Longtown
Risk Level
Elevated
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Longtown
Severity Distribution
within ~10 miles of Longtown
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Longtown, two things run higher than the national average within ~10 miles of Longtown — PFAS (3 sites) and Underground Storage Tanks (51 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Longtown
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 Longtown average
Your land is one point inside Longtown
Everything above resolves to Longtown as a whole — one PHZM band and one 28°F frost record, read across 17K 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 Longtown Average
Longtown Average
- ●USDA Zones 7b, averaged across Longtown
- ●One soil character for all of Longtown
- ●Frost dates read at Longtown's scale: Mar 10 to Nov 19
YOUR Parcel
- ✓Your exact zone, not Longtown's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Longtown
Pull a site-specific report for your exact address in Longtown, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Longtown averages can't show:
We read public map data around Longtown — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Longtown average
How we know this about Longtown
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 Longtown’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 Longtown
When does frost risk typically end in Longtown?
The last hard freeze (28°F) in Longtown typically lands around Mar 10, 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 31.
When is the first frost in Longtown?
The first hard freeze (28°F) in Longtown 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 254 days after the spring freeze cleared.
How long is the growing season in Longtown?
Measured between 28°F hard freezes, Longtown sees about 254 frost-free days — roughly Mar 10 through Nov 19, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 31 to Nov 5, about 219 days.
Is the soil safe to grow vegetables in Longtown?
The federal record around Longtown is a meaningful one — 58 documented sites, mostly Underground Storage Tanks entries (51), the nearest Underground Storage Tanks record about 0.2 miles out — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.
How do I protect my plants from frost in Longtown?
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 Longtown's scale — its 7b band and its 254-day season. Your yard writes its own version of Longtown'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 Longtown’s own scale
6 of the readings below were taken at Longtown's own scale — its own ~254-day season between 28°F freezes, the 16,714 acres it covers and 58 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Longtown's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Longtown's own 28°F hard-freeze dates, about Mar 10 and Nov 19 and the ~254-day span between themNOAA 1991–2020 Climate Normals
- 58 documented contamination sites on the federal record near Longtown, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Longtown's boundary and the 16,714 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~254-day seasonGrowable Ground crop-matching engine
- The ecoregion at Longtown's own centroid, the Arkansas ValleyUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Longtown's 16,714 acres read through its county's SSURGO summaryfrom Pittsburg County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Pittsburg 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 Pittsburg County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Longtown's 16,714 acreswhy one lot differs from the next →
- Which side of Longtown you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 16,714 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 Longtown-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaLongtown sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides