Oologah, Oklahoma, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.
On paper, cabbage, hazelnut, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Oologah, 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 Oologah 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 Oologah — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Oologah — the short answer
Oologah, Oklahoma: USDA zone 7a, about 231 days between hard freezes, across 1K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 11
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~231
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 7a is Oologah's average, not your lot's — a low corner or a tree line moves it. Against Oologah's 231-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Oologah
Each reading below is measured for Oologah itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredOologah 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
MeasuredOologah sits in USDA hardiness zone 7a.
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 Oologah is in
Oologah sits in the Central Irregular Plains — EPA Level III, inside the wider Great Plains. That is read at Oologah's own centroid rather than borrowed from Rogers County.
What Grows in Oologah
Every plant below cleared Oologah's own zone 7a and its 231-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Oologah?
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 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 25 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 11 — 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 Oologah
Closest first, within ~10 miles of Oologah. Listing isn't leaking, and distance isn't exposure.
- US ARMY COE OOLOGHA PROJECT OFFICEBrownfields · 900 ft
- A1 CLNRSBrownfields · 1300 ft
- Mustang Mini MartUnderground Storage Tanks · 1400 ft
- Pump 'N Pete's #15Underground Storage Tanks · 2300 ft
- PSO NORTHEASTERN POWER STATIONBrownfields · 1.0 mi
- PSO NORTHEASTERN POWER STATIONToxics Release Inventory · 1.0 mi
- Oologah Public SchoolUnderground Storage Tanks · 1.1 mi
- Northeastern Power StationUnderground Storage Tanks · 1.6 mi
- Abandoned UstUnderground Storage Tanks · 1.6 mi
- Beattie's Bait & GroceryUnderground Storage Tanks · 1.6 mi
- Us Army Corps Of EngineersUnderground Storage Tanks · 1.8 mi
- Redbud MarinaUnderground Storage Tanks · 2.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Oologah'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 Oologah.
Total Sites
104
within ~10 miles of Oologah
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Oologah
Severity Distribution
within ~10 miles of Oologah
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Oologah, two things run higher than the national average within ~10 miles of Oologah — PFAS (4 sites) and Toxics Release Inventory (17 sites). That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Oologah
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 Oologah average
Your land is one point inside Oologah
Everything above resolves to Oologah as a whole — one PHZM band and one 28°F frost record, read across 1K 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 Oologah Average
Oologah Average
- ●USDA Zones 7a, averaged across Oologah
- ●One soil character for all of Oologah
- ●Frost dates read at Oologah's scale: Mar 25 to Nov 11
YOUR Parcel
- ✓Your exact zone, not Oologah's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Oologah
Pull a site-specific report for your exact address in Oologah, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Oologah averages can't show:
We read public map data around Oologah — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Oologah average
How we know this about Oologah
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 Oologah’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 Oologah
When does frost risk typically end in Oologah?
The last hard freeze (28°F) in Oologah typically lands around Mar 25, 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 15.
When is the first frost in Oologah?
The first hard freeze (28°F) in Oologah typically arrives around Nov 11, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 28, so the watching starts about Oct 12 — about 231 days after the spring freeze cleared.
How long is the growing season in Oologah?
Measured between 28°F hard freezes, Oologah sees about 231 frost-free days — roughly Mar 25 through Nov 11, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 15 to Oct 28, about 196 days.
Is the soil safe to grow vegetables in Oologah?
The federal record around Oologah is a meaningful one — 104 documented sites, mostly Underground Storage Tanks entries (57), the nearest Brownfields 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 Oologah?
From about Oct 12 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 11 (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 11. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Oologah's scale — its 7a band and its 231-day season. Your yard writes its own version of Oologah'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 Oologah’s own scale
6 of the readings below were taken at Oologah's own scale — its own ~231-day season between 28°F freezes, the 1,064 acres it covers and 104 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Oologah's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Oologah's own 28°F hard-freeze dates, about Mar 25 and Nov 11 and the ~231-day span between themNOAA 1991–2020 Climate Normals
- 104 documented contamination sites on the federal record near Oologah, the closest Brownfields record about 0.2 miles out from the town centreFederal environmental registers
- Oologah's boundary and the 1,064 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~231-day seasonGrowable Ground crop-matching engine
- The ecoregion at Oologah's own centroid, the Central Irregular PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Oologah's 1,064 acres read through its county's SSURGO summaryfrom Rogers County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Rogers 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 Rogers County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Oologah's 1,064 acreswhy one lot differs from the next →
- Which side of Oologah you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,064 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Oologah-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaOologah sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides