Webb City, Oklahoma, 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.
On paper, cabbage, hazelnut, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Webb City, 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 Webb City 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 Webb City — soil, climate, flood, and parcel records. How we handle your address.
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Webb City — the short answer
Webb City, Oklahoma: USDA zone 7a, about 227 days between hard freezes, across 161 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 26
- 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
- ~227
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 161 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 Webb City's average, not your lot's — a low corner or a tree line moves it. Against Webb City's 227-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Webb City
Each reading below is measured for Webb City itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWebb City runs about 227 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
MeasuredWebb City 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 Webb City is in
Webb City sits in the Flint Hills — EPA Level III, inside the wider Great Plains. That is read at Webb City's own centroid, and it is not what its county reads: Osage County is mostly Cross Timbers. The wider page above you is answering a different question about different ground.
What Grows in Webb City
Every plant below cleared Webb City's own zone 7a and its 227-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Webb City?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 26; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 26 (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 Webb City
Closest first, within ~10 miles of Webb City. Listing isn't leaking, and distance isn't exposure.
- Phillips 66 Co #000433Underground Storage Tanks · 1.1 mi
- Lep 66Underground Storage Tanks · 1.1 mi
- Phillips Petroleum CompanyUnderground Storage Tanks · 1.2 mi
- Osage County District # 3-ShidlerUnderground Storage Tanks · 2.6 mi
- Shidler Public SchoolsUnderground Storage Tanks · 3.4 mi
- Stoabs OilUnderground Storage Tanks · 3.4 mi
- CHAPARRAL ENERGY LLC SHIDLER OFFICEBrownfields · 3.4 mi
- Wehunt Country StoreUnderground Storage Tanks · 3.4 mi
- Anderson TexacoUnderground Storage Tanks · 3.4 mi
- Formby Oil Co.Underground Storage Tanks · 3.5 mi
- Divalls Master StationUnderground Storage Tanks · 3.5 mi
- H And R StationUnderground Storage Tanks · 3.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Webb City'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 Webb City.
Sources Checked
within ~10 miles of Webb City
Severity Distribution
within ~10 miles of Webb City
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Webb City, Underground Storage Tanks runs higher than the national average — 25 sites within ~10 miles of Webb City. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Webb City
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 Webb City average
Your land is one point inside Webb City
Everything above resolves to Webb City as a whole — one PHZM band and one 28°F frost record, read across 161 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 town 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 Webb City Average
Webb City Average
- ●USDA Zones 7a, averaged across Webb City
- ●One soil character for all of Webb City
- ●Frost dates read at Webb City's scale: Mar 26 to Nov 8
YOUR Parcel
- ✓Your exact zone, not Webb City's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Webb City
Pull a site-specific report for your exact address in Webb City, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Webb City averages can't show:
We read public map data around Webb City — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Webb City average
How we know this about Webb City
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Webb City’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 town grain anywhere on this page — there is no town-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 Webb City
When does frost risk typically end in Webb City?
The last hard freeze (28°F) in Webb City typically lands around Mar 26, 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 16.
When is the first frost in Webb City?
The first hard freeze (28°F) in Webb City 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 227 days after the spring freeze cleared.
How long is the growing season in Webb City?
Measured between 28°F hard freezes, Webb City sees about 227 frost-free days — roughly Mar 26 through Nov 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 16 to Oct 25, about 192 days.
Is the soil safe to grow vegetables in Webb City?
The federal record around Webb City is light — 31 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (25), the nearest Underground Storage Tanks record about 1.1 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do I protect my plants from frost in Webb City?
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 Webb City's scale — its 7a band and its 227-day season. Your yard writes its own version of Webb City'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 Webb City’s own scale
6 of the readings below were taken at Webb City's own scale — its own ~227-day season between 28°F freezes, the 161 acres it covers and 31 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Webb City's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Webb City's own 28°F hard-freeze dates, about Mar 26 and Nov 8 and the ~227-day span between themNOAA 1991–2020 Climate Normals
- 31 documented contamination sites on the federal record near Webb City, the closest Underground Storage Tanks record about 1.1 miles out from the town centreFederal environmental registers
- Webb City's boundary and the 161 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~227-day seasonGrowable Ground crop-matching engine
- Webb City sits in the Flint Hills — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Webb City's 161 acres read through its county's SSURGO summaryfrom Osage County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Osage County
- The growing challenges every Oklahoma grower plans around — written at state scale, so they stay on the state guidefrom Oklahoma
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Osage County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Webb City's 161 acreswhy one lot differs from the next →
- Which side of Webb City you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 161 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 1.1 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 Webb City-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaWebb City sits outside our named growing regions, so Oklahoma as a whole is its closest context here.