Dixon, Oklahoma, sits in USDA hardiness zone 7b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Well-matched crops include cabbage, prickly pear, california poppy, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Dixon, 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 Dixon 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 Dixon — soil, climate, flood, and parcel records. How we handle your address.
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Dixon — the short answer
Dixon, Oklahoma: USDA zone 7b, about 240 days between hard freezes, across 374 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 16
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 11
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~240
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 374 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 7b is Dixon's average, not your lot's — a low corner or a tree line moves it. Against Dixon's 240-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Dixon
Each reading below is measured for Dixon itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredDixon runs about 240 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
MeasuredDixon sits in USDA hardiness zone 7b.
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 Dixon is in
Dixon sits in the Cross Timbers — EPA Level III, inside the wider Great Plains. That is read at Dixon's own centroid rather than borrowed from Seminole County.
What Grows in Dixon
Every plant below cleared Dixon's own zone 7b and its 240-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Dixon?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Feb 16; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 16 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 11 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
What's on the federal record near Dixon
Closest first, within ~10 miles of Dixon. Listing isn't leaking, and distance isn't exposure.
- Lively Electric Co., Inc.Underground Storage Tanks · 950 ft
- Lively Electric CoUnderground Storage Tanks · 950 ft
- Vic's Country StoreUnderground Storage Tanks · 1900 ft
- Fat Daddy's Quick TripUnderground Storage Tanks · 1900 ft
- George CookUnderground Storage Tanks · 0.8 mi
- Dodd's Apco StationUnderground Storage Tanks · 0.9 mi
- Phillips 66 Co #003600Underground Storage Tanks · 1.4 mi
- Jerry MathenyUnderground Storage Tanks · 1.4 mi
- Village MarketUnderground Storage Tanks · 1.4 mi
- Security State Bank Of WewokaUnderground Storage Tanks · 1.5 mi
- P&H Construction, Inc.Underground Storage Tanks · 1.5 mi
- Wewoka MartUnderground Storage Tanks · 1.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Dixon'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 Dixon.
Total Sites
165
within ~10 miles of Dixon
Risk Level
Moderate
Highest-severity
6 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Dixon
Severity Distribution
within ~10 miles of Dixon
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Dixon, two things run higher than the national average within ~10 miles of Dixon — CAFO (5 sites) and Underground Storage Tanks (129 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Dixon
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 Dixon average
Your land is one point inside Dixon
Everything above resolves to Dixon as a whole — one PHZM band and one 28°F frost record, read across 374 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 Dixon Average
Dixon Average
- ●USDA Zones 7b, averaged across Dixon
- ●One soil character for all of Dixon
- ●Frost dates read at Dixon's scale: Mar 16 to Nov 11
YOUR Parcel
- ✓Your exact zone, not Dixon's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Dixon
Pull a site-specific report for your exact address in Dixon, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Dixon averages can't show:
We read public map data around Dixon — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Dixon average
How we know this about Dixon
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 Dixon’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 Dixon
When does frost risk typically end in Dixon?
The last hard freeze (28°F) in Dixon typically lands around Mar 16, 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 6.
When is the first frost in Dixon?
The first hard freeze (28°F) in Dixon typically arrives around Nov 11, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 28, so the watching starts about Oct 12 — about 240 days after the spring freeze cleared.
How long is the growing season in Dixon?
Measured between 28°F hard freezes, Dixon sees about 240 frost-free days — roughly Mar 16 through Nov 11, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 6 to Oct 28, about 205 days.
Is the soil safe to grow vegetables in Dixon?
The federal record around Dixon shows 165 documented sites, mostly Underground Storage Tanks entries (129), the nearest Underground Storage Tanks record about 0.2 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 Dixon?
From about Oct 12 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 11 (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 11. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Dixon's scale — its 7b band and its 240-day season. Your yard writes its own version of Dixon'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 Dixon’s own scale
6 of the readings below were taken at Dixon's own scale — its own ~240-day season between 28°F freezes, the 374 acres it covers and 165 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Dixon's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Dixon's own 28°F hard-freeze dates, about Mar 16 and Nov 11 and the ~240-day span between themNOAA 1991–2020 Climate Normals
- 165 documented contamination sites on the federal record near Dixon, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Dixon's boundary and the 374 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~240-day seasonGrowable Ground crop-matching engine
- The ecoregion at Dixon's own centroid, the Cross TimbersUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Dixon's 374 acres read through its county's SSURGO summaryfrom Seminole County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Seminole 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 Seminole County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Dixon's 374 acreswhy one lot differs from the next →
- Which side of Dixon you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 374 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 Dixon-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaDixon sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides