Capron, 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 Capron, 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 Capron 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 Capron — soil, climate, flood, and parcel records. How we handle your address.
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Capron — the short answer
Capron, Oklahoma: USDA zone 7a, about 224 days between hard freezes, across 69 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 29
- 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
- ~224
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 69 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 Capron's average, not your lot's — a low corner or a tree line moves it. Against Capron's 224-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Capron
Each reading below is measured for Capron itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredCapron runs about 224 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
MeasuredCapron 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 Capron is in
Capron sits in the Central Great Plains — EPA Level III, inside the wider Great Plains. That is read at Capron's own centroid rather than borrowed from Woods County.
What Grows in Capron
Every plant below cleared Capron's own zone 7a and its 224-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Capron?
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 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 29 (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. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
What's on the federal record near Capron
Closest first, within ~10 miles of Capron. Listing isn't leaking, and distance isn't exposure.
- Farmers Cooperative (Capron)Underground Storage Tanks · 450 ft
- Sol Bouziden & SonsUnderground Storage Tanks · 3.2 mi
- ALVA STATIONBrownfields · 4.5 mi
- IOFINA RESOURCES, INC. (IO5)Brownfields · 5.1 mi
- IOFINA RESOURCES, INC. (I02)Brownfields · 5.2 mi
- Alva Sales CoUnderground Storage Tanks · 5.4 mi
- 27N-12W-18 AC 1Nitrate · 5.8 mi
- Max OakesUnderground Storage Tanks · 5.9 mi
- Anderson & Jan Inc.Underground Storage Tanks · 6.0 mi
- Farm StorageUnderground Storage Tanks · 6.9 mi
- BARTON SPECIALTIESBrownfields · 7.0 mi
- IOFINA RESOURCES, INC. (IO4)Brownfields · 7.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Capron'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 Capron.
Total Sites
114
within ~10 miles of Capron
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Capron
Severity Distribution
within ~10 miles of Capron
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Capron, CAFO runs higher than the national average — 4 sites within ~10 miles of Capron. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Check your specific parcel in Capron
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 Capron average
Your land is one point inside Capron
Everything above resolves to Capron as a whole — one PHZM band and one 28°F frost record, read across 69 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 Capron Average
Capron Average
- ●USDA Zones 7a, averaged across Capron
- ●One soil character for all of Capron
- ●Frost dates read at Capron's scale: Mar 29 to Nov 8
YOUR Parcel
- ✓Your exact zone, not Capron's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Capron
Pull a site-specific report for your exact address in Capron, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Capron averages can't show:
We read public map data around Capron — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Capron average
How we know this about Capron
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 Capron’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 Capron
When does frost risk typically end in Capron?
The last hard freeze (28°F) in Capron typically lands around Mar 29, 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 19.
When is the first frost in Capron?
The first hard freeze (28°F) in Capron 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 224 days after the spring freeze cleared.
How long is the growing season in Capron?
Measured between 28°F hard freezes, Capron sees about 224 frost-free days — roughly Mar 29 through Nov 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 19 to Oct 25, about 189 days.
Is the soil safe to grow vegetables in Capron?
The federal record around Capron is a meaningful one — 114 documented sites, mostly Underground Storage Tanks entries (68), the nearest Underground Storage Tanks record under a tenth of a mile 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 Capron?
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 Capron's scale — its 7a band and its 224-day season. Your yard writes its own version of Capron'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 Capron’s own scale
6 of the readings below were taken at Capron's own scale — its own ~224-day season between 28°F freezes, the 69 acres it covers and 114 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Capron's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Capron's own 28°F hard-freeze dates, about Mar 29 and Nov 8 and the ~224-day span between themNOAA 1991–2020 Climate Normals
- 114 documented contamination sites on the federal record near Capron, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Capron's boundary and the 69 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~224-day seasonGrowable Ground crop-matching engine
- The ecoregion at Capron's own centroid, the Central Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Capron's 69 acres read through its county's SSURGO summaryfrom Woods County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Woods 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 Woods County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Capron's 69 acreswhy one lot differs from the next →
- Which side of Capron you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 69 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Capron-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaCapron sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides