Columbus, Kansas, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include cabbage, hazelnut, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Columbus, 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 Columbus 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 Columbus — soil, climate, flood, and parcel records. How we handle your address.
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Columbus — the short answer
Columbus, Kansas: USDA zone 7a, about 231 days between hard freezes, across 2K acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~231
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 2K 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 7a is Columbus's average, not your lot's — a low corner or a tree line moves it. Against Columbus's 231-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Columbus
Each reading below is measured for Columbus itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredColumbus runs about 231 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
MeasuredColumbus 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 Columbus is in
Columbus sits in the Central Irregular Plains — EPA Level III, inside the wider Great Plains. That is read at Columbus's own centroid rather than borrowed from Cherokee County.
What Grows in Columbus
Every plant below cleared Columbus's own zone 7a and its 231-day season. Each card opens that plant's Kansas profile. How we score.
Is it too late to plant in Columbus?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 24; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 24 (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. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
What's on the federal record near Columbus
Closest first, within ~10 miles of Columbus. Listing isn't leaking, and distance isn't exposure.
- MAUDE NORTON MEMORIAL CITY HOSUnderground Storage Tanks · 300 ft
- TITAN EXPRESSUnderground Storage Tanks · 350 ft
- MERCY HOSPITAL COLUMBUSBrownfields · 400 ft
- KERR-MCGEE #6809Underground Storage Tanks · 450 ft
- FAST MARTUnderground Storage Tanks · 600 ft
- THERMEX ENERGY CORPORATION-HALUnderground Storage Tanks · 750 ft
- MAPLE STREET LEADSuperfund · 1500 ft
- GLASGOW BODY & FRAME INCBrownfields · 1500 ft
- CASEY'S GENERAL STORES - #1376Underground Storage Tanks · 1600 ft
- 32S 23E 13BAA 01 COLUMBUSNitrate · 2000 ft
- 33S 23E 13BAA 01Nitrate · 2300 ft
- 33S 23E 13AB 01Nitrate · 0.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Columbus'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 Columbus.
Sources Checked
within ~10 miles of Columbus
Severity Distribution
within ~10 miles of Columbus
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Columbus, two things run higher than the national average within ~10 miles of Columbus — CAFO (5 sites) and Nitrate (68 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 Columbus
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 Columbus average
Your land is one point inside Columbus
Everything above resolves to Columbus as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Columbus Average
Columbus Average
- ●USDA Zones 7a, averaged across Columbus
- ●One soil character for all of Columbus
- ●Frost dates read at Columbus's scale: Mar 24 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Columbus's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Columbus
Pull a site-specific report for your exact address in Columbus, Kansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Columbus averages can't show:
We read public map data around Columbus — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Columbus average
How we know this about Columbus
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 Columbus’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 Columbus
When does frost risk typically end in Columbus?
The last hard freeze (28°F) in Columbus typically lands around Mar 24, 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 14.
When is the first frost in Columbus?
The first hard freeze (28°F) in Columbus typically arrives around Nov 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 27, so the watching starts about Oct 11 — about 231 days after the spring freeze cleared.
How long is the growing season in Columbus?
Measured between 28°F hard freezes, Columbus sees about 231 frost-free days — roughly Mar 24 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 14 to Oct 27, about 196 days.
Is the soil safe to grow vegetables in Columbus?
The federal record around Columbus is a meaningful one — 131 documented sites, mostly Nitrate entries (68), the nearest Underground Storage Tanks record under a tenth of a mile 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 Columbus?
From about Oct 11 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 10 (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 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Columbus's scale — its 7a band and its 231-day season. Your yard writes its own version of Columbus'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 Columbus’s own scale
6 of the readings below were taken at Columbus's own scale — its own ~231-day season between 28°F freezes, the 1,557 acres it covers and 131 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Columbus's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Columbus's own 28°F hard-freeze dates, about Mar 24 and Nov 10 and the ~231-day span between themNOAA 1991–2020 Climate Normals
- 131 documented contamination sites on the federal record near Columbus, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Columbus's boundary and the 1,557 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~231-day seasonGrowable Ground crop-matching engine
- The ecoregion at Columbus's own centroid, the Central Irregular PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Columbus's 1,557 acres read through its county's SSURGO summaryfrom Cherokee County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Cherokee County
- The growing challenges every Kansas grower plans around — written at state scale, so they stay on the state guidefrom Kansas
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Cherokee County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Columbus's 1,557 acreswhy one lot differs from the next →
- Which side of Columbus you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,557 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Columbus-wide figureread your own land →