Linwood, 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.
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.
Even in Linwood, 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 Linwood 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 Linwood — soil, climate, flood, and parcel records. How we handle your address.
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Linwood — the short answer
Linwood, Kansas: USDA zone 6b, about 210 days between hard freezes, across 378 acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 4
- 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
- ~210
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 378 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 Linwood's average, not your lot's — a low corner or a tree line moves it. Against Linwood's 210-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Linwood
Each reading below is measured for Linwood itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLinwood runs about 210 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
MeasuredLinwood 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 Linwood is in
Linwood sits in the Central Irregular Plains — EPA Level III, inside the wider Great Plains. That is read at Linwood's own centroid rather than borrowed from Leavenworth County.
What Grows in Linwood
Every plant below cleared Linwood's own zone 6b and its 210-day season. Each card opens that plant's Kansas profile. How we score.
Is it too late to plant in Linwood?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 4 (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. 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 Linwood
Survey cells within 31 miles of Linwood checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 404 miles off. What to watch for.
What's on the federal record near Linwood
Closest first, within ~10 miles of Linwood. Listing isn't leaking, and distance isn't exposure.
- G & S CONVENIENCE STOREUnderground Storage Tanks · 650 ft
- 12S 21E 13CC 01Nitrate · 800 ft
- USD #458 - LINWOODUnderground Storage Tanks · 1200 ft
- TURF DIAGNOSTICS AND DESIGNBrownfields · 1300 ft
- 12S 21E 24BBA 01Nitrate · 1800 ft
- ALEX R. MASSON, INC.Underground Storage Tanks · 2500 ft
- 12S 21E 25BBB 01Nitrate · 1.3 mi
- 12S 21E 11CB 01Nitrate · 1.4 mi
- 12S 21E 25BD 01Nitrate · 1.6 mi
- 12S 22E 19CDC 01Nitrate · 1.7 mi
- 12S 21E 35BAA 01Nitrate · 2.3 mi
- 12S 21E 28AAA 01Nitrate · 2.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Linwood'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 Linwood.
Total Sites
381
within ~10 miles of Linwood
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Linwood
Severity Distribution
within ~10 miles of Linwood
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Linwood, two things run higher than the national average within ~10 miles of Linwood — PFAS (6 sites) and Nitrate (188 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Linwood
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 Linwood average
Your land is one point inside Linwood
Everything above resolves to Linwood as a whole — one PHZM band and one 28°F frost record, read across 378 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 Linwood Average
Linwood Average
- ●USDA Zones 6b, averaged across Linwood
- ●One soil character for all of Linwood
- ●Frost dates read at Linwood's scale: Apr 4 to Oct 31
YOUR Parcel
- ✓Your exact zone, not Linwood's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Linwood
Pull a site-specific report for your exact address in Linwood, Kansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Linwood averages can't show:
We read public map data around Linwood — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Linwood average
How we know this about Linwood
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 Linwood’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 Linwood
When does frost risk typically end in Linwood?
The last hard freeze (28°F) in Linwood typically lands around Apr 4, 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 25.
When is the first frost in Linwood?
The first hard freeze (28°F) in Linwood 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 210 days after the spring freeze cleared.
How long is the growing season in Linwood?
Measured between 28°F hard freezes, Linwood sees about 210 frost-free days — roughly Apr 4 through Oct 31, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 25 to Oct 17, about 175 days.
Is the soil safe to grow vegetables in Linwood?
The federal record around Linwood is a meaningful one — 381 documented sites, mostly Nitrate entries (188), the nearest Underground Storage Tanks record about 0.1 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 Linwood?
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 Linwood's scale — its 6b band and its 210-day season. Your yard writes its own version of Linwood'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 Linwood’s own scale
7 of the readings below were taken at Linwood's own scale — its own ~210-day season between 28°F freezes, the 378 acres it covers and 381 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Linwood's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Linwood's own 28°F hard-freeze dates, about Apr 4 and Oct 31 and the ~210-day span between themNOAA 1991–2020 Climate Normals
- 381 documented contamination sites on the federal record near Linwood, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Linwood's boundary and the 378 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~210-day seasonGrowable Ground crop-matching engine
- The ecoregion at Linwood's own centroid, the Central Irregular PlainsUS EPA Level III Ecoregions
- Lanternfly survey cells around Linwood checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Linwood's 378 acres read through its county's SSURGO summaryfrom Leavenworth County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Leavenworth 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 Leavenworth County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Linwood's 378 acreswhy one lot differs from the next →
- Which side of Linwood you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 378 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.1 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 Linwood-wide figureread your own land →