Goodwell, Oklahoma, sits in USDA hardiness zone 6b — a zone band wide enough that plant choice, not possibility, is the interesting question.
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 Goodwell, 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 Goodwell 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 Goodwell — soil, climate, flood, and parcel records. How we handle your address.
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Goodwell — the short answer
Goodwell, Oklahoma: USDA zone 6b, about 203 days between hard freezes, across 1K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 11
- 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
- ~203
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 Goodwell's average, not your lot's — a low corner or a tree line moves it. Against Goodwell's 203-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Goodwell
Each reading below is measured for Goodwell itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGoodwell runs about 203 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
MeasuredGoodwell 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 Goodwell is in
Goodwell sits in the High Plains — EPA Level III, inside the wider Great Plains. That is read at Goodwell's own centroid rather than borrowed from Texas County.
What Grows in Goodwell
Every plant below cleared Goodwell's own zone 6b and its 203-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Goodwell?
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 Mar 14; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 11 (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 Goodwell
Closest first, within ~10 miles of Goodwell. Listing isn't leaking, and distance isn't exposure.
- Goodwell GarageUnderground Storage Tanks · 0.5 mi
- Ok Panhandle State UniversityUnderground Storage Tanks · 0.5 mi
- Goodwell T.V.Underground Storage Tanks · 0.6 mi
- 54 Gas & GoUnderground Storage Tanks · 0.6 mi
- 02N-13E-35 CBB 1Nitrate · 0.7 mi
- College CornerUnderground Storage Tanks · 0.8 mi
- Well Owner Name: ToddNitrate · 3.0 mi
- T01N-R13E-27 CCD COS-1124Nitrate · 5.6 mi
- 02N-14E-23 CBB 2Nitrate · 5.6 mi
- TEXHOMA CATTLE FEEDERS, INC.CAFO · 7.0 mi
- 02N-12E-11 B 1Nitrate · 7.7 mi
- 02N-14E-12 DBB 1Nitrate · 7.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Goodwell'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 Goodwell.
Total Sites
58
within ~10 miles of Goodwell
Risk Level
Moderate
Highest-severity
1 concentrated animal feeding operation
Sources Checked
within ~10 miles of Goodwell
Severity Distribution
within ~10 miles of Goodwell
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Goodwell, two things run higher than the national average within ~10 miles of Goodwell — Nitrate (18 sites) and Underground Storage Tanks (36 sites). That's not a problem with your land — it's information about it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Goodwell
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 Goodwell average
Your land is one point inside Goodwell
Everything above resolves to Goodwell as a whole — one PHZM band and one 28°F frost record, read across 1K 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 Goodwell Average
Goodwell Average
- ●USDA Zones 6b, averaged across Goodwell
- ●One soil character for all of Goodwell
- ●Frost dates read at Goodwell's scale: Apr 11 to Oct 31
YOUR Parcel
- ✓Your exact zone, not Goodwell's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Goodwell
Pull a site-specific report for your exact address in Goodwell, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Goodwell averages can't show:
We read public map data around Goodwell — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Goodwell average
How we know this about Goodwell
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 Goodwell’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 Goodwell
When does frost risk typically end in Goodwell?
The last hard freeze (28°F) in Goodwell typically lands around Apr 11, 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 May 2.
When is the first frost in Goodwell?
The first hard freeze (28°F) in Goodwell 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 203 days after the spring freeze cleared.
How long is the growing season in Goodwell?
Measured between 28°F hard freezes, Goodwell sees about 203 frost-free days — roughly Apr 11 through Oct 31, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 2 to Oct 17, about 168 days.
Is the soil safe to grow vegetables in Goodwell?
The federal record around Goodwell shows 58 documented sites, mostly Underground Storage Tanks entries (36), the nearest Underground Storage Tanks record about 0.5 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Goodwell?
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 Goodwell's scale — its 6b band and its 203-day season. Your yard writes its own version of Goodwell'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 Goodwell’s own scale
6 of the readings below were taken at Goodwell's own scale — its own ~203-day season between 28°F freezes, the 1,406 acres it covers and 58 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Goodwell's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Goodwell's own 28°F hard-freeze dates, about Apr 11 and Oct 31 and the ~203-day span between themNOAA 1991–2020 Climate Normals
- 58 documented contamination sites on the federal record near Goodwell, the closest Underground Storage Tanks record about 0.5 miles out from the town centreFederal environmental registers
- Goodwell's boundary and the 1,406 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~203-day seasonGrowable Ground crop-matching engine
- The ecoregion at Goodwell's own centroid, the High PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Goodwell's 1,406 acres read through its county's SSURGO summaryfrom Texas County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Texas 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 Texas County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Goodwell's 1,406 acreswhy one lot differs from the next →
- Which side of Goodwell you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,406 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.5 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 Goodwell-wide figureread your own land →
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