Montgomery County, in Kansas, sits in USDA hardiness zone 7a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
The conditions favor cabbage, hazelnut, california poppy, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Montgomery County lies within the Southeast Kansas / Cherokee Lowlands (Ozark Border) — a regional growing area with its own character.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Montgomery County holds more than one microclimate.
Soils and elevations shift across Montgomery 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 Montgomery County — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Montgomery County — the short answer
Montgomery County, Kansas: USDA zone 7a, about 228 days between hard freezes, across 412K acres.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 27
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Nov 10
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~228
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 412K 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 7a is Montgomery County's average, not your lot's — a low corner or a tree line moves it. Against Montgomery County's 228-day season, see what your own ground reads.
Heat and winter chill in Montgomery County
Across a year, Montgomery County accumulates about 4,240 growing degree days above 50°F, about 407 more than the middle Kansas county — ahead of 100 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.
Winter banks about 2,439 hours below 45°F. Chill is what tells a fruit tree its dormancy is over, and it is set by climate rather than by anything you can build.
Grounded in PRISM Climate Group, Oregon State University — 1991–2020 monthly normals
Soil in Montgomery County
Across Montgomery County, the ground is predominantly Mollisols, where Bates, 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 5.8–6.4, slightly acidic. Rainfall drains through hydrologic group D soils.
Soil order
Mollisols
Drainage
Moderately well drained
Prime farmland
60%
Hydric soils
4%
Soil still varies lot by lot — soil types explained.
How the ground varies across Montgomery County
The USDA soil survey maps 34% of Montgomery County as moderately well drained — but another 64% drains differently: 33% well drained, 27% somewhat poorly drained.
Bates is the most extensive named soil at 17% of mapped acres, then Kenoma (13%) and Eram (12%).
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 Montgomery County
Each reading below is measured for Montgomery 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 Montgomery 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 Montgomery County runs about pH 5.8–6.4, 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
MeasuredMontgomery County runs about 228 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
MeasuredMontgomery County sits in USDA hardiness zone 7a.
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 Montgomery County is in
Montgomery County spans 2 EPA Level III ecoregions — Central Irregular Plains (89%) and Cross Timbers (11%). Which one your land falls in changes what grows wild there and how the ground behaves, and a county-wide answer cannot tell you which.
What Grows in Montgomery County
We scored all 1,086 plants against Montgomery County's own USDA zone 7a and its own 228-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 Montgomery 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 Feb 27; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 27 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 10 — 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.
Documented around Montgomery County
- monarch butterfly728 documented records
Sighting records, so they follow observers as much as insects.
What gets applied to farmland in Montgomery County
USGS estimates 105,700 lb of Glyphosate on Montgomery County farmland in 2019, its largest by weight, ahead of Acephate (70,512 lb) and Dicamba (28,601 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 Montgomery County — and how to grow with it.
We checked the federal record across Montgomery County — 381 documented sites across 7 of the 9 source types we track.
The most significant on record: 9 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
There's a meaningful federal record across Montgomery 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 Montgomery County
Closest first, across Montgomery County. Listing isn't leaking, and distance isn't exposure.
- INDEPENDENCE COMM COLBrownfields · 1.3 mi
- AKAS #3 (BAILEY'S CORNER 8)Underground Storage Tanks · 1.8 mi
- 33S 16E 07BC 01Nitrate · 1.9 mi
- TEXTRON AVIATION - INDEPENDENCEBrownfields · 2.0 mi
- TEXTRON AVIATION - INDEPENDENCEToxics Release Inventory · 2.0 mi
- MAGELLAN PIPELINE COMPANY LP INDEPENDENCE STATIONBrownfields · 2.0 mi
- VINING RENTALSUnderground Storage Tanks · 2.0 mi
- MONARCH CABINETS, INC.Brownfields · 2.0 mi
- WALMART SUPERCENTER #2893Brownfields · 2.3 mi
- FASTLANE COLLISION & CUSTOMS LLCBrownfields · 2.3 mi
- ROMANS MOTOR CO INCUnderground Storage Tanks · 2.4 mi
- 33S 16E 18BDD 01Nitrate · 2.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Montgomery 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 Montgomery County.
Sources Checked
across Montgomery County
Severity Distribution
across Montgomery County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Montgomery County, two things run higher than the national average across Montgomery County — Superfund (9 sites) and CAFO (5 sites). That's not a problem with your land — it's information about it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Check your specific parcel in Montgomery 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 Montgomery County average
Your land is one point inside Montgomery County
Everything above resolves to Montgomery County as a whole — one PHZM band and one county frost record, read across 412K 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 Montgomery County Average
Montgomery County Average
- ●USDA Zones 7a, averaged across Montgomery County
- ●One soil character for all of Montgomery County
- ●Frost dates read at Montgomery County's scale: Mar 27 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Montgomery County's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Montgomery County
Pull a site-specific report for your exact address in Montgomery County, Kansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Montgomery County averages can't show:
We read public map data around Montgomery County — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Montgomery County average
How we know this about Montgomery 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 Montgomery County carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Montgomery County
When does frost risk typically end in Montgomery County?
The last hard freeze (28°F) in Montgomery County typically lands around Mar 27, 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 17.
How long is the growing season in Montgomery County?
Measured between 28°F hard freezes, Montgomery County sees about 228 frost-free days — roughly Mar 27 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 17 to Oct 27, about 193 days.
Is the soil safe to grow vegetables in Montgomery County?
The federal record around Montgomery County is a meaningful one — 381 documented sites, mostly Underground Storage Tanks entries (137), the nearest Brownfields record about 1.3 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 Montgomery County's scale — its 7a band and its 228-day season. Your yard writes its own version of Montgomery 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 Montgomery County’s own scale
9 of the readings below were taken at Montgomery County's own scale — its own ~228-day span between 28°F freezes, the 3 most extensive soil series mapped here and 381 documented sites inside its boundary; one is borrowed from a wider read, named and linked below.
Measured here
- Montgomery County's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Montgomery County's own 28°F hard-freeze dates and its ~228-day span between themNOAA 1991–2020 Climate Normals
- The soil order, drainage, surface pH, and the 3 most extensive named soil series mapped in Montgomery CountyUSDA NRCS SSURGO
- 381 documented contamination sites inside the county boundary, distance-sorted from its center — the closest Brownfields record about 1.3 miles outFederal environmental registers
- Montgomery County's boundary and the 411,900 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~228-day seasonGrowable Ground crop-matching engine
- The 2 ecoregions Montgomery County spans, Central Irregular Plains the largestUS EPA Level III Ecoregions
- Open occurrence records documented in Montgomery County for a tracked speciesGBIF derived datasets (CC0 / CC BY 4.0)
- Which agricultural compounds go onto Montgomery 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 Montgomery County — the ~228 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 Montgomery County's 411,900 acreswhy one lot differs from the next →
- Which of those 381 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 Montgomery Countyread your own land →