Garden Plain, Kansas, sits in USDA hardiness zone 7a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
These conditions suit cabbage, hazelnut, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Garden Plain, 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 Garden Plain 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 Garden Plain — soil, climate, flood, and parcel records. How we handle your address.
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Garden Plain — the short answer
Garden Plain, Kansas: USDA zone 7a, about 222 days between hard freezes, across 721 acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 31
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~222
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 721 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 Garden Plain's average, not your lot's — a low corner or a tree line moves it. Against Garden Plain's 222-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Garden Plain
Each reading below is measured for Garden Plain itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGarden Plain runs about 222 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
MeasuredGarden Plain 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 Garden Plain is in
Garden Plain sits in the Central Great Plains — EPA Level III, inside the wider Great Plains. That is read at Garden Plain's own centroid rather than borrowed from Sedgwick County.
What Grows in Garden Plain
Every plant below cleared Garden Plain's own zone 7a and its 222-day season. Each card opens that plant's Kansas profile. How we score.
Is it too late to plant in Garden Plain?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 3; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 31 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 8 — 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 Garden Plain
Closest first, within ~10 miles of Garden Plain. Listing isn't leaking, and distance isn't exposure.
- USD #267 - GARDEN PLAIN ELEMENUnderground Storage Tanks · 800 ft
- STUHLSATZ SERVICE INCUnderground Storage Tanks · 1100 ft
- GARDEN PLAIN QUICK SHOPUnderground Storage Tanks · 1500 ft
- FISHER LUMBER CO. INCUnderground Storage Tanks · 2200 ft
- GARDEN PLAIN BULK PLANTUnderground Storage Tanks · 0.5 mi
- GARDEN PLAIN CARDTROLUnderground Storage Tanks · 0.6 mi
- GARDEN PLAIN BODY & RPRBrownfields · 2.4 mi
- DILLONS GODDARD WAREHOUSEBrownfields · 2.9 mi
- 27S 04W 26CCD 01Nitrate · 2.9 mi
- SEDGWICK CO. FIRE STATION #5Underground Storage Tanks · 3.0 mi
- 27S 04W 12CCB 01Nitrate · 3.9 mi
- SEDGWICK CO, MOTOR POOLUnderground Storage Tanks · 4.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Garden Plain'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 Garden Plain.
Total Sites
126
within ~10 miles of Garden Plain
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Garden Plain
Severity Distribution
within ~10 miles of Garden Plain
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Garden Plain, Nitrate runs higher than the national average — 38 sites within ~10 miles of Garden Plain. 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 Garden Plain
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 Garden Plain average
Your land is one point inside Garden Plain
Everything above resolves to Garden Plain as a whole — one PHZM band and one 28°F frost record, read across 721 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 Garden Plain Average
Garden Plain Average
- ●USDA Zones 7a, averaged across Garden Plain
- ●One soil character for all of Garden Plain
- ●Frost dates read at Garden Plain's scale: Mar 31 to Nov 8
YOUR Parcel
- ✓Your exact zone, not Garden Plain's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Garden Plain
Pull a site-specific report for your exact address in Garden Plain, Kansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Garden Plain averages can't show:
We read public map data around Garden Plain — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Garden Plain average
How we know this about Garden Plain
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 Garden Plain’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 Garden Plain
When does frost risk typically end in Garden Plain?
The last hard freeze (28°F) in Garden Plain typically lands around Mar 31, 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 21.
When is the first frost in Garden Plain?
The first hard freeze (28°F) in Garden Plain typically arrives around Nov 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 25, so the watching starts about Oct 9 — about 222 days after the spring freeze cleared.
How long is the growing season in Garden Plain?
Measured between 28°F hard freezes, Garden Plain sees about 222 frost-free days — roughly Mar 31 through Nov 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 21 to Oct 25, about 187 days.
Is the soil safe to grow vegetables in Garden Plain?
The federal record around Garden Plain is a meaningful one — 126 documented sites, mostly Underground Storage Tanks entries (48), the nearest Underground Storage Tanks record about 0.2 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.
How do I protect my plants from frost in Garden Plain?
From about Oct 9 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 8 (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 8. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Garden Plain's scale — its 7a band and its 222-day season. Your yard writes its own version of Garden Plain'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 Garden Plain’s own scale
6 of the readings below were taken at Garden Plain's own scale — its own ~222-day season between 28°F freezes, the 721 acres it covers and 126 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Garden Plain's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Garden Plain's own 28°F hard-freeze dates, about Mar 31 and Nov 8 and the ~222-day span between themNOAA 1991–2020 Climate Normals
- 126 documented contamination sites on the federal record near Garden Plain, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Garden Plain's boundary and the 721 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~222-day seasonGrowable Ground crop-matching engine
- The ecoregion at Garden Plain's own centroid, the Central Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Garden Plain's 721 acres read through its county's SSURGO summaryfrom Sedgwick County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Sedgwick 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 Sedgwick County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Garden Plain's 721 acreswhy one lot differs from the next →
- Which side of Garden Plain you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 721 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 miles 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 Garden Plain-wide figureread your own land →