Tyro, Kansas, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Crops well matched to these conditions include cabbage, hazelnut, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Tyro, 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 Tyro 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 Tyro — soil, climate, flood, and parcel records. How we handle your address.
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Tyro — the short answer
Tyro, Kansas: USDA zone 7a, about 225 days between hard freezes, across 292 acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~225
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 292 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 Tyro's average, not your lot's — a low corner or a tree line moves it. Against Tyro's 225-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Tyro
Each reading below is measured for Tyro itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredTyro runs about 225 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
MeasuredTyro 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 Tyro is in
Tyro sits in the Central Irregular Plains — EPA Level III, inside the wider Great Plains. That is read at Tyro's own centroid rather than borrowed from Montgomery County.
What Grows in Tyro
Every plant below cleared Tyro's own zone 7a and its 225-day season. Each card opens that plant's Kansas profile. How we score.
Is it too late to plant in Tyro?
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 7 — 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.
What's on the federal record near Tyro
Closest first, within ~10 miles of Tyro. Listing isn't leaking, and distance isn't exposure.
- 34S 14E 36DD 01Nitrate · 900 ft
- 35S 14E 01AB 01Nitrate · 1000 ft
- ARCO PIPE LINE CO.-BROOME TANK FARMBrownfields · 1700 ft
- AT&T TYRO RADIO STATION (KS)Underground Storage Tanks · 1800 ft
- SANDY'S STOREUnderground Storage Tanks · 0.8 mi
- 34S 14E 25DA 01Nitrate · 1.3 mi
- COFFEYVILLE RESOURCES CRUDE TRANSPORTATION, LLC BROOM STATION TK-1106Brownfields · 3.3 mi
- 35S 14E 09DD 01Nitrate · 3.4 mi
- SPEARS MANUFACTURING COToxics Release Inventory · 3.9 mi
- 35S 14E 16DCA 01Nitrate · 4.0 mi
- 34S 14E 12DD 01Nitrate · 4.1 mi
- 34S 14E 11DDD 01Nitrate · 4.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Tyro'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 Tyro.
Sources Checked
within ~10 miles of Tyro
Severity Distribution
within ~10 miles of Tyro
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Tyro, two things run higher than the national average within ~10 miles of Tyro — Superfund (7 sites) and Nitrate (58 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Tyro
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 Tyro average
Your land is one point inside Tyro
Everything above resolves to Tyro as a whole — one PHZM band and one 28°F frost record, read across 292 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 Tyro Average
Tyro Average
- ●USDA Zones 7a, averaged across Tyro
- ●One soil character for all of Tyro
- ●Frost dates read at Tyro's scale: Mar 27 to Nov 7
YOUR Parcel
- ✓Your exact zone, not Tyro's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Tyro
Pull a site-specific report for your exact address in Tyro, Kansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Tyro averages can't show:
We read public map data around Tyro — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Tyro average
How we know this about Tyro
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 Tyro’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 Tyro
When does frost risk typically end in Tyro?
The last hard freeze (28°F) in Tyro 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.
When is the first frost in Tyro?
The first hard freeze (28°F) in Tyro typically arrives around Nov 7, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 24, so the watching starts about Oct 8 — about 225 days after the spring freeze cleared.
How long is the growing season in Tyro?
Measured between 28°F hard freezes, Tyro sees about 225 frost-free days — roughly Mar 27 through Nov 7, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 17 to Oct 24, about 190 days.
Is the soil safe to grow vegetables in Tyro?
The federal record around Tyro is a meaningful one — 109 documented sites, mostly Nitrate entries (58), the nearest Nitrate 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 Tyro?
From about Oct 8 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 7 (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 7. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Tyro's scale — its 7a band and its 225-day season. Your yard writes its own version of Tyro'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 Tyro’s own scale
6 of the readings below were taken at Tyro's own scale — its own ~225-day season between 28°F freezes, the 292 acres it covers and 109 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Tyro's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Tyro's own 28°F hard-freeze dates, about Mar 27 and Nov 7 and the ~225-day span between themNOAA 1991–2020 Climate Normals
- 109 documented contamination sites on the federal record near Tyro, the closest Nitrate record about 0.2 miles out from the town centreFederal environmental registers
- Tyro's boundary and the 292 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~225-day seasonGrowable Ground crop-matching engine
- The ecoregion at Tyro's own centroid, the Central Irregular PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Tyro's 292 acres read through its county's SSURGO summaryfrom Montgomery County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Montgomery 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 Montgomery County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Tyro's 292 acreswhy one lot differs from the next →
- Which side of Tyro you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 292 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Tyro-wide figureread your own land →