Stevens County, in Kansas, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
A short list that earns its place here — cabbage, hazelnut, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Stevens County lies within the High Plains — a regional growing area with its own character.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Stevens County holds more than one microclimate.
Soils and elevations shift across Stevens County, so your frost dates and drainage aren't the county average. 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 Stevens County — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Stevens County — the short answer
Stevens County, Kansas: USDA zone 6b, about 203 days between hard freezes, across 466K acres.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 9
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Oct 29
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~203
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 466K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are county 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 6b is Stevens County's average, not your lot's — a low corner or a tree line moves it. Against Stevens County's 203-day season, see what your own ground reads.
Heat in Stevens County
Across a year, Stevens County accumulates about 3,784 growing degree days above 50°F, about 49 fewer than the middle Kansas county — ahead of 47 of Kansas’s 105 counties. Degree days are the heat a crop actually gets to work with — more of them is more room to ripen a long-season crop before the freeze closes the window.
Grounded in PRISM Climate Group, Oregon State University — 1991–2020 monthly normals
Soil in Stevens County
Across Stevens County, the ground is predominantly Alfisols, where Dalhart, Eva, and Belfon are the most extensive named soil series. The soil is generally well drained with a loamy fine sand surface. Topsoil pH runs about 7.2, neutral. Rainfall drains through hydrologic group B soils.
Soil order
Alfisols
Drainage
Well drained
Hydric soils
0%
Soil still varies lot by lot — soil types explained.
How the ground varies across Stevens County
The USDA soil survey maps 84% of Stevens County as well drained — but another 16% drains differently: 14% somewhat excessively drained, 2% excessively drained.
Dalhart is the most extensive named soil at 36% of mapped acres, then Eva (12%) and Belfon (11%).
Which of them your own lot sits on is a parcel question, not a county one. Check your address for the survey at your boundary.
What this means for growing in Stevens County
Each reading below is measured for Stevens County itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Drainage
MeasuredThe dominant soils across Stevens County are well drained, in hydrologic group B — ground that drains quickly.
The upside is soil you can work early in spring and roots that never drown; the cost is that fast-draining ground dries out fast and leaches nutrients away before plants can use them.
Work in compost and mulch to hold moisture and feed, and water more often in short doses than deep and rarely.
USDA NRCS SSURGO
Surface pH
MeasuredTopsoil across Stevens County runs about pH 7.2, close to neutral.
This is the range most vegetables prefer — one correction you probably do not have to make, which is genuinely good news for a new bed.
Keep it there with compost rather than lime or sulfur, and only amend if your own soil test says otherwise.
USDA NRCS SSURGO
Season length
MeasuredStevens County runs about 203 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
MeasuredStevens County sits in USDA hardiness zone 6b.
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 Stevens County is in
Stevens County sits in the High Plains — EPA Level III, inside the wider Great Plains. One consistent ecological setting across the whole county.
What Grows in Stevens County
We scored all 1,086 plants against Stevens County's own USDA zone 6b and its own 203-day season between hard freezes, using the same matching engine that runs a full parcel report. These cleared both. Sun, soil pH and drainage vary lot by lot — those are the parcel questions below. Each card opens that plant's Kansas profile.
Is it too late to plant in Stevens County?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 12; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 9 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 29 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around Stevens County
- monarch butterfly1,205 documented records
Sighting records, so they follow observers as much as insects.
What gets applied to farmland in Stevens County
USGS estimates 414,064 lb of Glyphosate on Stevens County farmland in 2019, its largest by weight, ahead of Atrazine (252,532 lb) and Acetochlor (181,176 lb).
Farmland across the whole county, not any one lot. Check your address for the site-by-site record.
Safe to Grow Here?
What the federal record shows across Stevens County — and how to grow with it.
We checked the federal record across Stevens County — 210 documented sites across 6 of the 9 source types we track.
The most significant on record: 1 Toxics Release Inventory facility. Active industrial facilities reporting chemical releases to air, water, and land.
There's a meaningful federal record across Stevens County — worth a look before you plant food, not a reason to hold back from growing. Proximity to a documented site is information, not a diagnosis of any one yard. A soil test before new food beds is the sensible precaution here, and the map shows exactly which sites sit where, so you can see what's actually near you.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
What's on the federal record near Stevens County
Closest first, across Stevens County. Listing isn't leaking, and distance isn't exposure.
- WTG HUGOTON, LPBrownfields · 0.7 mi
- BOX K RANCH LLCCAFO · 0.9 mi
- 33S 37W 09DDC 01Nitrate · 1.7 mi
- HUGOTON CUSTOM WORKSBrownfields · 1.8 mi
- SOUTHWESTERN BELL TELEPHONE COUnderground Storage Tanks · 2.0 mi
- 33S 37W 16ABD 01Nitrate · 2.0 mi
- G & S IMPLEMENT INC.Brownfields · 2.1 mi
- G & S IMPLEMENT INC.Underground Storage Tanks · 2.1 mi
- 33S 37W 16AC 01Nitrate · 2.2 mi
- 33S 37W 16ACB 01Nitrate · 2.2 mi
- SCOUT V - STEVENS CO. #2 STATION (AIR)Brownfields · 2.2 mi
- PASSMORE BROS INCBrownfields · 2.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Stevens County'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 Stevens County.
Total Sites
210
across Stevens County
Risk Level
Elevated
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
across Stevens County
Severity Distribution
across Stevens County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Stevens County, two things run higher than the national average across Stevens County — CAFO (7 sites) and Nitrate (144 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 Stevens County
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 Stevens County average
Your land is one point inside Stevens County
Everything above resolves to Stevens County as a whole — one PHZM band and one county frost record, read across 466K 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 county 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 county average.
Your Lot vs the Stevens County Average
Stevens County Average
- ●USDA Zones 6b, averaged across Stevens County
- ●One soil character for all of Stevens County
- ●Frost dates read at Stevens County's scale: Apr 9 to Oct 29
YOUR Parcel
- ✓Your exact zone, not Stevens County's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Stevens County
Pull a site-specific report for your exact address in Stevens County, Kansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Stevens County averages can't show:
We read public map data around Stevens County — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Stevens County average
How we know this about Stevens County
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at county grain; hard-freeze dates from NOAA 1991–2020 28°F normals at this county’s own record where one resolves, and the labelled statewide window where none does; soils from the USDA NRCS SSURGO survey, area-weighted across the county’s own map units; boundaries and acreage from US Census TIGER/Line 2025; the contamination and pesticide records from the federal sources named in their beats above. Where Stevens County carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Stevens County
When does frost risk typically end in Stevens County?
The last hard freeze (28°F) in Stevens County typically lands around Apr 9, 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 30.
How long is the growing season in Stevens County?
Measured between 28°F hard freezes, Stevens County sees about 203 frost-free days — roughly Apr 9 through Oct 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 30 to Oct 15, about 168 days.
Is the soil safe to grow vegetables in Stevens County?
The federal record around Stevens County is a meaningful one — 210 documented sites, mostly Nitrate entries (144), the nearest Brownfields record about 0.7 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.
Everything above is measured at Stevens County's scale — its 6b band and its 203-day season. Your yard writes its own version of Stevens County's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
Will It Grow Here?
Zone fit is the first question — each answer below reads Kansas's frost window, season length, and soil profile against the plant's real requirements.
What this page reads at Stevens County’s own scale
9 of the readings below were taken at Stevens County's own scale — its own ~203-day span between 28°F freezes, the 3 most extensive soil series mapped here and 210 documented sites inside its boundary; one is borrowed from a wider read, named and linked below.
Measured here
- Stevens County's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Stevens County's own 28°F hard-freeze dates and its ~203-day span between themNOAA 1991–2020 Climate Normals
- The soil order, drainage, surface pH, and the 3 most extensive named soil series mapped in Stevens CountyUSDA NRCS SSURGO
- 210 documented contamination sites inside the county boundary, distance-sorted from its center — the closest Brownfields record about 0.7 miles outFederal environmental registers
- Stevens County's boundary and the 465,554 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~203-day seasonGrowable Ground crop-matching engine
- Stevens County sitting wholly inside the High PlainsUS EPA Level III Ecoregions
- Open occurrence records documented in Stevens County for a tracked speciesGBIF derived datasets (CC0 / CC BY 4.0)
- Which agricultural compounds go onto Stevens County farmland, and roughly how muchUSGS NAWQA EPest county estimates
Inherited from a wider read
- The growing challenges every Kansas grower plans around — written at state scale, so they stay on the state guidefrom Kansas
What this page can’t tell you
- How the season shifts across Stevens County — the ~203 days above is one reading at its centre; the 12 towns below each carry their owntowns in this county →
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Stevens County's 465,554 acreswhy one lot differs from the next →
- Which of those 210 documented sites actually reaches your soil — that needs your address, the wind, and the groundwater directionhow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — none of it survives being averaged over Stevens Countyread your own land →