Green, Kansas, sits in USDA hardiness zone 6b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Growers here do well with cabbage, hazelnut, lavender, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Green, 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 Green 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 Green — soil, climate, flood, and parcel records. How we handle your address.
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Green — the short answer
Green, Kansas: USDA zone 6b, about 211 days between hard freezes, across 125 acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 31
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~211
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 125 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 6b is Green's average, not your lot's — a low corner or a tree line moves it. Against Green's 211-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Green
Each reading below is measured for Green itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGreen runs about 211 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
MeasuredGreen 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 Green is in
Green sits in the Central Great Plains — EPA Level III, inside the wider Great Plains. That is read at Green's own centroid rather than borrowed from Clay County.
What Grows in Green
Every plant below cleared Green's own zone 6b and its 211-day season. Each card opens that plant's Kansas profile. How we score.
Is it too late to plant in Green?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 6; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 3 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 31 — 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 Green
Closest first, within ~10 miles of Green. Listing isn't leaking, and distance isn't exposure.
- 07S 04E 20ADC 01Nitrate · 150 ft
- 07S 04E 32CCC 01Nitrate · 2.6 mi
- 06S 04E 33ADD 01Nitrate · 4.2 mi
- BRUNA IMPLEMENT CO.Brownfields · 4.5 mi
- BRUNA IMPLEMENT CO.Underground Storage Tanks · 4.6 mi
- NELSON POULTRY FARM-PRAIRIE VIEWCAFO · 5.5 mi
- 07S 03E 04DAD 01Nitrate · 5.7 mi
- 07S 03E 29CDD 01Nitrate · 6.6 mi
- HOLMES, DONUnderground Storage Tanks · 6.7 mi
- 06S 05E 32BA 01Nitrate · 7.0 mi
- CARVER'S COUNTRYSIDE MARKETUnderground Storage Tanks · 7.0 mi
- USD 379 MARK A. CHAPMAN ACTIVITY COMPLEXBrownfields · 7.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Green'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 Green.
Sources Checked
within ~10 miles of Green
Severity Distribution
within ~10 miles of Green
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Green, Nitrate runs higher than the national average — 26 sites within ~10 miles of Green. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Green
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 Green average
Your land is one point inside Green
Everything above resolves to Green as a whole — one PHZM band and one 28°F frost record, read across 125 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 Green Average
Green Average
- ●USDA Zones 6b, averaged across Green
- ●One soil character for all of Green
- ●Frost dates read at Green's scale: Apr 3 to Oct 31
YOUR Parcel
- ✓Your exact zone, not Green's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Green
Pull a site-specific report for your exact address in Green, Kansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Green averages can't show:
We read public map data around Green — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Green average
How we know this about Green
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 Green’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 Green
When does frost risk typically end in Green?
The last hard freeze (28°F) in Green typically lands around Apr 3, 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 24.
When is the first frost in Green?
The first hard freeze (28°F) in Green typically arrives around Oct 31, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 17, so the watching starts about Oct 1 — about 211 days after the spring freeze cleared.
How long is the growing season in Green?
Measured between 28°F hard freezes, Green sees about 211 frost-free days — roughly Apr 3 through Oct 31, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 24 to Oct 17, about 176 days.
Is the soil safe to grow vegetables in Green?
The federal record around Green is a meaningful one — 80 documented sites, mostly Underground Storage Tanks entries (30), the nearest Nitrate 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 Green?
From about Oct 1 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 Oct 31 (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 Oct 31. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Green's scale — its 6b band and its 211-day season. Your yard writes its own version of Green'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 Green’s own scale
6 of the readings below were taken at Green's own scale — its own ~211-day season between 28°F freezes, the 125 acres it covers and 80 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Green's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Green's own 28°F hard-freeze dates, about Apr 3 and Oct 31 and the ~211-day span between themNOAA 1991–2020 Climate Normals
- 80 documented contamination sites on the federal record near Green, the closest Nitrate record under a tenth of a mile out from the town centreFederal environmental registers
- Green's boundary and the 125 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~211-day seasonGrowable Ground crop-matching engine
- The ecoregion at Green's own centroid, the Central Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Green's 125 acres read through its county's SSURGO summaryfrom Clay County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Clay 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 Clay County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Green's 125 acreswhy one lot differs from the next →
- Which side of Green you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 125 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Green-wide figureread your own land →
More in Kansas
Wider growing context
What grows across KansasGreen sits outside our named growing regions, so Kansas as a whole is its closest context here.
Nearby growing guides