Krebs, Oklahoma, sits in USDA hardiness zone 7b — a zone band wide enough that plant choice, not possibility, is the interesting question.
These conditions suit cabbage, prickly pear, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Krebs, 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 Krebs 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 Krebs — soil, climate, flood, and parcel records. How we handle your address.
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Krebs — the short answer
Krebs, Oklahoma: USDA zone 7b, about 245 days between hard freezes, across 3K acres of city.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 16
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 16
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~245
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 3K 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 Krebs's average, not your lot's — a low corner or a tree line moves it. Against Krebs's 245-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Krebs
Each reading below is measured for Krebs itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredKrebs runs about 245 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
MeasuredKrebs 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 Krebs is in
Krebs sits in the Arkansas Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Krebs's own centroid rather than borrowed from Pittsburg County.
What Grows in Krebs
Every plant below cleared Krebs's own zone 7b and its 245-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Krebs?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 16; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 16 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 16 — 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 Krebs
Closest first, within ~10 miles of Krebs. Listing isn't leaking, and distance isn't exposure.
- City Of KrebsUnderground Storage Tanks · 1100 ft
- Circle K #2704008Underground Storage Tanks · 1300 ft
- Krebs KornerUnderground Storage Tanks · 1500 ft
- L & L Handy StopUnderground Storage Tanks · 1900 ft
- Krebs 66Underground Storage Tanks · 0.5 mi
- The Gorilla StoreUnderground Storage Tanks · 0.5 mi
- Krebs YardUnderground Storage Tanks · 0.7 mi
- E-Z Mart #4359Underground Storage Tanks · 0.8 mi
- TRACTOR SUPPLY # 136Brownfields · 1.0 mi
- Odot-Dist J HeadquartersUnderground Storage Tanks · 1.0 mi
- A B McFarlandUnderground Storage Tanks · 1.1 mi
- NATIONAL OILWELL VARCO LP - MCALESTER W / NOV MCALESTER RIG OPERATIONSToxics Release Inventory · 1.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Krebs'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 Krebs.
Total Sites
172
within ~10 miles of Krebs
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Krebs
Severity Distribution
within ~10 miles of Krebs
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Krebs, two things run higher than the national average within ~10 miles of Krebs — PFAS (3 sites) and Underground Storage Tanks (125 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Krebs
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 Krebs average
Your land is one point inside Krebs
Everything above resolves to Krebs as a whole — one PHZM band and one 28°F frost record, read across 3K 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 city 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 Krebs Average
Krebs Average
- ●USDA Zones 7b, averaged across Krebs
- ●One soil character for all of Krebs
- ●Frost dates read at Krebs's scale: Mar 16 to Nov 16
YOUR Parcel
- ✓Your exact zone, not Krebs's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Krebs
Pull a site-specific report for your exact address in Krebs, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Krebs averages can't show:
We read public map data around Krebs — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Krebs average
How we know this about Krebs
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Krebs’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 city grain anywhere on this page — there is no city-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 Krebs
When does frost risk typically end in Krebs?
The last hard freeze (28°F) in Krebs typically lands around Mar 16, 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 6.
When is the first frost in Krebs?
The first hard freeze (28°F) in Krebs typically arrives around Nov 16, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 2, so the watching starts about Oct 17 — about 245 days after the spring freeze cleared.
How long is the growing season in Krebs?
Measured between 28°F hard freezes, Krebs sees about 245 frost-free days — roughly Mar 16 through Nov 16, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 6 to Nov 2, about 210 days.
Is the soil safe to grow vegetables in Krebs?
The federal record around Krebs is a meaningful one — 172 documented sites, mostly Underground Storage Tanks entries (125), 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 Krebs?
From about Oct 17 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 16 (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 16. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Krebs's scale — its 7b band and its 245-day season. Your yard writes its own version of Krebs'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 Krebs’s own scale
6 of the readings below were taken at Krebs's own scale — its own ~245-day season between 28°F freezes, the 3,100 acres it covers and 172 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Krebs's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Krebs's own 28°F hard-freeze dates, about Mar 16 and Nov 16 and the ~245-day span between themNOAA 1991–2020 Climate Normals
- 172 documented contamination sites on the federal record near Krebs, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Krebs's boundary and the 3,100 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~245-day seasonGrowable Ground crop-matching engine
- The ecoregion at Krebs's own centroid, the Arkansas ValleyUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Krebs's 3,100 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 Krebs's 3,100 acreswhy one lot differs from the next →
- Which side of Krebs you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,100 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 Krebs-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaKrebs sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides