Wapanucka, Oklahoma, sits in USDA hardiness zone 8a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
On paper, cabbage, fig, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Wapanucka, 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 Wapanucka 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 Wapanucka — soil, climate, flood, and parcel records. How we handle your address.
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Wapanucka — the short answer
Wapanucka, Oklahoma: USDA zone 8a, about 244 days between hard freezes, across 424 acres of town.
- USDA zone
- 8a
- 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 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~244
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 424 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 8a is Wapanucka's average, not your lot's — a low corner or a tree line moves it. Against Wapanucka's 244-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Wapanucka
Each reading below is measured for Wapanucka itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWapanucka runs about 244 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
MeasuredWapanucka sits in USDA hardiness zone 8a.
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 Wapanucka is in
Wapanucka sits in the Cross Timbers — EPA Level III, inside the wider Great Plains. That is read at Wapanucka's own centroid rather than borrowed from Johnston County.
What Grows in Wapanucka
Every plant below cleared Wapanucka's own zone 8a and its 244-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Wapanucka?
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 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 14 — 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 Wapanucka
Closest first, within ~10 miles of Wapanucka. Listing isn't leaking, and distance isn't exposure.
- Harolds Full ServiceUnderground Storage Tanks · 150 ft
- Miller MartUnderground Storage Tanks · 650 ft
- Dollar Bill'sUnderground Storage Tanks · 700 ft
- Wapanucka Public SchoolUnderground Storage Tanks · 1300 ft
- Guy B. TaylorUnderground Storage Tanks · 5.0 mi
- Bromide Quarry (Closed)Underground Storage Tanks · 5.6 mi
- Union Pacific Railroad WapanukaUnderground Storage Tanks · 5.7 mi
- Braums FarmUnderground Storage Tanks · 6.4 mi
- Ma & Pa's GroceryUnderground Storage Tanks · 6.9 mi
- Sandra CogburnUnderground Storage Tanks · 6.9 mi
- Corner MarketUnderground Storage Tanks · 6.9 mi
- Clarita GasUnderground Storage Tanks · 7.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Wapanucka'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 Wapanucka.
Total Sites
27
within ~10 miles of Wapanucka
Risk Level
Low
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Wapanucka
Severity Distribution
within ~10 miles of Wapanucka
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Wapanucka, two things run higher than the national average within ~10 miles of Wapanucka — CAFO (3 sites) and Nitrate (8 sites). That's not a problem with your land — it's information about it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Wapanucka
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 Wapanucka average
Your land is one point inside Wapanucka
Everything above resolves to Wapanucka as a whole — one PHZM band and one 28°F frost record, read across 424 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 Wapanucka Average
Wapanucka Average
- ●USDA Zones 8a, averaged across Wapanucka
- ●One soil character for all of Wapanucka
- ●Frost dates read at Wapanucka's scale: Mar 15 to Nov 14
YOUR Parcel
- ✓Your exact zone, not Wapanucka's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Wapanucka
Pull a site-specific report for your exact address in Wapanucka, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Wapanucka averages can't show:
We read public map data around Wapanucka — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Wapanucka average
How we know this about Wapanucka
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 Wapanucka’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 Wapanucka
When does frost risk typically end in Wapanucka?
The last hard freeze (28°F) in Wapanucka 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 Wapanucka?
The first hard freeze (28°F) in Wapanucka typically arrives around Nov 14, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 31, so the watching starts about Oct 15 — about 244 days after the spring freeze cleared.
How long is the growing season in Wapanucka?
Measured between 28°F hard freezes, Wapanucka sees about 244 frost-free days — roughly Mar 15 through Nov 14, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 5 to Oct 31, about 209 days.
Is the soil safe to grow vegetables in Wapanucka?
The federal record around Wapanucka is light — 27 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (14), the nearest Underground Storage Tanks record under a tenth of a mile out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do I protect my plants from frost in Wapanucka?
From about Oct 15 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 14 (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 14. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Wapanucka's scale — its 8a band and its 244-day season. Your yard writes its own version of Wapanucka'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 Wapanucka’s own scale
6 of the readings below were taken at Wapanucka's own scale — its own ~244-day season between 28°F freezes, the 424 acres it covers and 27 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Wapanucka's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Wapanucka's own 28°F hard-freeze dates, about Mar 15 and Nov 14 and the ~244-day span between themNOAA 1991–2020 Climate Normals
- 27 documented contamination sites on the federal record near Wapanucka, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Wapanucka's boundary and the 424 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~244-day seasonGrowable Ground crop-matching engine
- The ecoregion at Wapanucka's own centroid, the Cross TimbersUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Wapanucka's 424 acres read through its county's SSURGO summaryfrom Johnston County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Johnston 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 Johnston County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Wapanucka's 424 acreswhy one lot differs from the next →
- Which side of Wapanucka you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 424 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Wapanucka-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaWapanucka sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides