Whitehorn Cove, Oklahoma, sits in USDA hardiness zone 7b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Growers here do well with cabbage, prickly pear, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Whitehorn Cove, 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 Whitehorn Cove 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 Whitehorn Cove — soil, climate, flood, and parcel records. How we handle your address.
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Whitehorn Cove — the short answer
Whitehorn Cove, Oklahoma: USDA zone 7b, about 237 days between hard freezes, across 5K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 19
- 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
- ~237
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 5K 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 Whitehorn Cove's average, not your lot's — a low corner or a tree line moves it. Against Whitehorn Cove's 237-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Whitehorn Cove
Each reading below is measured for Whitehorn Cove itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWhitehorn Cove runs about 237 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
MeasuredWhitehorn Cove 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 Whitehorn Cove is in
Whitehorn Cove sits in the Central Irregular Plains — EPA Level III, inside the wider Great Plains. That is read at Whitehorn Cove's own centroid rather than borrowed from Wagoner County.
What Grows in Whitehorn Cove
Every plant below cleared Whitehorn Cove's own zone 7b and its 237-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Whitehorn Cove?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 19; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 19 (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 Whitehorn Cove
Closest first, within ~10 miles of Whitehorn Cove. Listing isn't leaking, and distance isn't exposure.
- Former Buckskin Willy'sUnderground Storage Tanks · 0.8 mi
- Toppers One StopUnderground Storage Tanks · 2.2 mi
- Toppers County CornerUnderground Storage Tanks · 2.2 mi
- Rocky Point Trading Post IncUnderground Storage Tanks · 2.7 mi
- Ginny's Log CabinUnderground Storage Tanks · 2.9 mi
- Melba's One StopUnderground Storage Tanks · 3.7 mi
- Morgans CornerUnderground Storage Tanks · 3.8 mi
- Bonus 22Underground Storage Tanks · 3.8 mi
- Lake Food MartUnderground Storage Tanks · 3.8 mi
- Wagoner AirportUnderground Storage Tanks · 3.9 mi
- Wagoner Public Schools Transportation DeptUnderground Storage Tanks · 4.7 mi
- Mack's One StopUnderground Storage Tanks · 4.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Whitehorn Cove'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 Whitehorn Cove.
Total Sites
100
within ~10 miles of Whitehorn Cove
Risk Level
Moderate
Highest-severity
6 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Whitehorn Cove
Severity Distribution
within ~10 miles of Whitehorn Cove
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Whitehorn Cove, two things run higher than the national average within ~10 miles of Whitehorn Cove — PFAS (3 sites) and Underground Storage Tanks (73 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.
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 Whitehorn Cove
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 Whitehorn Cove average
Your land is one point inside Whitehorn Cove
Everything above resolves to Whitehorn Cove as a whole — one PHZM band and one 28°F frost record, read across 5K 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 Whitehorn Cove Average
Whitehorn Cove Average
- ●USDA Zones 7b, averaged across Whitehorn Cove
- ●One soil character for all of Whitehorn Cove
- ●Frost dates read at Whitehorn Cove's scale: Mar 19 to Nov 11
YOUR Parcel
- ✓Your exact zone, not Whitehorn Cove's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Whitehorn Cove
Pull a site-specific report for your exact address in Whitehorn Cove, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Whitehorn Cove averages can't show:
We read public map data around Whitehorn Cove — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Whitehorn Cove average
How we know this about Whitehorn Cove
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 Whitehorn Cove’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 Whitehorn Cove
When does frost risk typically end in Whitehorn Cove?
The last hard freeze (28°F) in Whitehorn Cove typically lands around Mar 19, 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 9.
When is the first frost in Whitehorn Cove?
The first hard freeze (28°F) in Whitehorn Cove 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 237 days after the spring freeze cleared.
How long is the growing season in Whitehorn Cove?
Measured between 28°F hard freezes, Whitehorn Cove sees about 237 frost-free days — roughly Mar 19 through Nov 11, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 9 to Oct 28, about 202 days.
Is the soil safe to grow vegetables in Whitehorn Cove?
The federal record around Whitehorn Cove shows 100 documented sites, mostly Underground Storage Tanks entries (73), the nearest Underground Storage Tanks record about 0.8 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 Whitehorn Cove?
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 Whitehorn Cove's scale — its 7b band and its 237-day season. Your yard writes its own version of Whitehorn Cove'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 Whitehorn Cove’s own scale
6 of the readings below were taken at Whitehorn Cove's own scale — its own ~237-day season between 28°F freezes, the 4,565 acres it covers and 100 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Whitehorn Cove's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Whitehorn Cove's own 28°F hard-freeze dates, about Mar 19 and Nov 11 and the ~237-day span between themNOAA 1991–2020 Climate Normals
- 100 documented contamination sites on the federal record near Whitehorn Cove, the closest Underground Storage Tanks record about 0.8 miles out from the town centreFederal environmental registers
- Whitehorn Cove's boundary and the 4,565 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~237-day seasonGrowable Ground crop-matching engine
- The ecoregion at Whitehorn Cove's own centroid, the Central Irregular PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Whitehorn Cove's 4,565 acres read through its county's SSURGO summaryfrom Wagoner County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Wagoner 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 Wagoner County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Whitehorn Cove's 4,565 acreswhy one lot differs from the next →
- Which side of Whitehorn Cove you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,565 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.8 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 Whitehorn Cove-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaWhitehorn Cove sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides