Anderson County, in Kansas, sits in USDA hardiness zone 6b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Crops well matched to these conditions include cabbage, hazelnut, lavender, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Anderson County holds more than one microclimate.
Soils and elevations shift across Anderson 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 Anderson County — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Anderson County — the short answer
Anderson County, Kansas: USDA zone 6b, about 220 days between hard freezes, across 371K acres.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 30
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Nov 5
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~220
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 371K 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 Anderson County's average, not your lot's — a low corner or a tree line moves it. Against Anderson County's 220-day season, see what your own ground reads.
Heat in Anderson County
Across a year, Anderson County accumulates about 3,971 growing degree days above 50°F, about 138 more than the middle Kansas county — ahead of 75 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 Anderson County
Across Anderson County, the ground is predominantly Mollisols, where Woodson, Kenoma, and Eram are the most extensive named soil series. The soil is generally moderately well drained with a silt loam surface. Topsoil pH runs about 5.9–6.4, slightly acidic. Rainfall drains through hydrologic group D soils.
Soil order
Mollisols
Drainage
Moderately well drained
Prime farmland
63%
Hydric soils
1%
Soil still varies lot by lot — soil types explained.
How the ground varies across Anderson County
The USDA soil survey maps 47% of Anderson County as moderately well drained — but another 52% drains differently: 31% somewhat poorly drained, 17% well drained.
Woodson is the most extensive named soil at 26% of mapped acres, then Kenoma (16%) and Eram (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 Anderson County
Each reading below is measured for Anderson 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 Anderson County are moderately well drained, in hydrologic group D — roughly the middle of the drainage range.
This is close to the middle most vegetables prefer: it holds enough water to carry a crop between rains without staying waterlogged. The catch is that a wet spring or a low corner can still tip it soggy.
Plant on the site as-is for most crops, but keep the lowest, slowest-draining beds for moisture-tolerant plantings.
USDA NRCS SSURGO
Surface pH
MeasuredTopsoil across Anderson County runs about pH 5.9–6.4, 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
MeasuredAnderson County runs about 220 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
MeasuredAnderson 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 Anderson County is in
Anderson County sits in the Central Irregular Plains — EPA Level III, inside the wider Great Plains. One consistent ecological setting across the whole county.
What Grows in Anderson County
We scored all 1,086 plants against Anderson County's own USDA zone 6b and its own 220-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 Anderson County?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Mar 2; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 30 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 5 — 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 Anderson County
- monarch butterfly29 documented records
Sighting records, so they follow observers as much as insects.
What gets applied to farmland in Anderson County
USGS estimates 171,761 lb of Glyphosate on Anderson County farmland in 2019, its largest by weight, ahead of Metolachlor & Metolachlor-s (111,192 lb) and Metolachlor-s (93,390 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 Anderson County — and how to grow with it.
We checked the federal record across Anderson County — 109 documented sites across 5 of the 9 source types we track.
The most significant on record: 4 Toxics Release Inventory facilities. Active industrial facilities reporting chemical releases to air, water, and land.
The federal record across Anderson County is a modest one — a typical footprint for a growing area. Nothing here calls for alarm; it's worth knowing which recorded sites sit closest to where you grow, and each one on the map carries its type and location. If one turns out to be a near neighbor, a one-time soil test settles the question.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
What's on the federal record near Anderson County
Closest first, across Anderson County. Listing isn't leaking, and distance isn't exposure.
- 21S 19E 14BBA 01Nitrate · 1.0 mi
- ANDERSON CNTY TRANSFER STABrownfields · 2.4 mi
- SOUTHERN STAR CENTRAL - WELDA STATIONBrownfields · 2.9 mi
- GEM FARM CENTER INCUnderground Storage Tanks · 3.7 mi
- TLC AUTO PS INCBrownfields · 4.4 mi
- TAYLOR FORGE ENGINEERED SYSTEMS - GREELEYToxics Release Inventory · 4.5 mi
- 20S 19E 26BCD 01Nitrate · 4.6 mi
- ANDERSON CO, HIGHWAYUnderground Storage Tanks · 4.7 mi
- GENE'S AUTOMOTIVE SERVICEBrownfields · 4.8 mi
- EAST KANSAS AGRI-ENERGY, LLCToxics Release Inventory · 4.9 mi
- EAST KANSAS AGRI-ENERGY, LLCBrownfields · 4.9 mi
- FRANCIS E HERMANNUnderground Storage Tanks · 4.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Anderson 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 Anderson County.
Total Sites
109
across Anderson County
Risk Level
Moderate
Highest-severity
4 Toxics Release Inventory facilities
Sources Checked
across Anderson County
Severity Distribution
across Anderson County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Anderson County, Nitrate runs higher than the national average — 46 sites across Anderson County. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Anderson 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 Anderson County average
Your land is one point inside Anderson County
Everything above resolves to Anderson County as a whole — one PHZM band and one county frost record, read across 371K 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 Anderson County Average
Anderson County Average
- ●USDA Zones 6b, averaged across Anderson County
- ●One soil character for all of Anderson County
- ●Frost dates read at Anderson County's scale: Mar 30 to Nov 5
YOUR Parcel
- ✓Your exact zone, not Anderson County's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Anderson County
Pull a site-specific report for your exact address in Anderson County, Kansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Anderson County averages can't show:
We read public map data around Anderson County — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Anderson County average
How we know this about Anderson 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 Anderson County carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Anderson County
When does frost risk typically end in Anderson County?
The last hard freeze (28°F) in Anderson County typically lands around Mar 30, 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 20.
How long is the growing season in Anderson County?
Measured between 28°F hard freezes, Anderson County sees about 220 frost-free days — roughly Mar 30 through Nov 5, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 20 to Oct 22, about 185 days.
Is the soil safe to grow vegetables in Anderson County?
The federal record around Anderson County shows 109 documented sites, mostly Nitrate entries (46), the nearest Nitrate record about 1.0 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.
Everything above is measured at Anderson County's scale — its 6b band and its 220-day season. Your yard writes its own version of Anderson 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 Anderson County’s own scale
9 of the readings below were taken at Anderson County's own scale — its own ~220-day span between 28°F freezes, the 3 most extensive soil series mapped here and 109 documented sites inside its boundary; one is borrowed from a wider read, named and linked below.
Measured here
- Anderson County's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Anderson County's own 28°F hard-freeze dates and its ~220-day span between themNOAA 1991–2020 Climate Normals
- The soil order, drainage, surface pH, and the 3 most extensive named soil series mapped in Anderson CountyUSDA NRCS SSURGO
- 109 documented contamination sites inside the county boundary, distance-sorted from its center — the closest Nitrate record about 1.0 miles outFederal environmental registers
- Anderson County's boundary and the 370,970 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~220-day seasonGrowable Ground crop-matching engine
- Anderson County sitting wholly inside the Central Irregular PlainsUS EPA Level III Ecoregions
- Open occurrence records documented in Anderson County for a tracked speciesGBIF derived datasets (CC0 / CC BY 4.0)
- Which agricultural compounds go onto Anderson 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 Anderson County — the ~220 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 Anderson County's 370,970 acreswhy one lot differs from the next →
- Which of those 109 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 Anderson Countyread your own land →