Red Rock, Oklahoma, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include cabbage, hazelnut, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Red Rock, 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 Red Rock 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 Red Rock — soil, climate, flood, and parcel records. How we handle your address.
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Red Rock — the short answer
Red Rock, Oklahoma: USDA zone 7a, about 229 days between hard freezes, across 159 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 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~229
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 159 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 Red Rock's average, not your lot's — a low corner or a tree line moves it. Against Red Rock's 229-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Red Rock
Each reading below is measured for Red Rock itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRed Rock runs about 229 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
MeasuredRed Rock 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 Red Rock is in
Red Rock sits in the Central Great Plains — EPA Level III, inside the wider Great Plains. That is read at Red Rock's own centroid rather than borrowed from Noble County.
What Grows in Red Rock
Every plant below cleared Red Rock's own zone 7a and its 229-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Red Rock?
Almost never — the real question is what to plant next. 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 10 — 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 Red Rock
Closest first, within ~10 miles of Red Rock. Listing isn't leaking, and distance isn't exposure.
- 23N-01E-22 A 1Nitrate · 600 ft
- Shepherd Oil Co LlcUnderground Storage Tanks · 0.9 mi
- Frontier Public SchoolUnderground Storage Tanks · 1.1 mi
- Board Of County CommissionersUnderground Storage Tanks · 5.9 mi
- Sooner Bait & TackleUnderground Storage Tanks · 6.2 mi
- Sooner Power Plant StationUnderground Storage Tanks · 6.5 mi
- Well Owner Name: TonyNitrate · 6.7 mi
- Bill Robbins - Bj Quick StopUnderground Storage Tanks · 6.8 mi
- 24N-01E-13 B 1Nitrate · 7.0 mi
- Bonnie McdanielUnderground Storage Tanks · 7.0 mi
- SOONER GENERATION STATIONToxics Release Inventory · 7.1 mi
- SOONER GENERATION STATIONBrownfields · 7.1 mi
3 more sites are on the record inside the same radius. See them on the map
Measured from Red Rock'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 Red Rock.
Total Sites
18
within ~10 miles of Red Rock
Risk Level
Low
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Red Rock
Severity Distribution
within ~10 miles of Red Rock
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
Check your specific parcel in Red Rock
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 Red Rock average
Your land is one point inside Red Rock
Everything above resolves to Red Rock as a whole — one PHZM band and one 28°F frost record, read across 159 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 Red Rock Average
Red Rock Average
- ●USDA Zones 7a, averaged across Red Rock
- ●One soil character for all of Red Rock
- ●Frost dates read at Red Rock's scale: Mar 26 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Red Rock's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Red Rock
Pull a site-specific report for your exact address in Red Rock, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Red Rock averages can't show:
We read public map data around Red Rock — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Red Rock average
How we know this about Red Rock
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 Red Rock’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 Red Rock
When does frost risk typically end in Red Rock?
The last hard freeze (28°F) in Red Rock 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 Red Rock?
The first hard freeze (28°F) in Red Rock typically arrives around Nov 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 27, so the watching starts about Oct 11 — about 229 days after the spring freeze cleared.
How long is the growing season in Red Rock?
Measured between 28°F hard freezes, Red Rock sees about 229 frost-free days — roughly Mar 26 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 16 to Oct 27, about 194 days.
Is the soil safe to grow vegetables in Red Rock?
The federal record around Red Rock is light — 18 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (9), the nearest Nitrate record about 0.1 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 Red Rock?
From about Oct 11 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 10 (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 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Red Rock's scale — its 7a band and its 229-day season. Your yard writes its own version of Red Rock'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 Red Rock’s own scale
6 of the readings below were taken at Red Rock's own scale — its own ~229-day season between 28°F freezes, the 159 acres it covers and 18 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Red Rock's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Red Rock's own 28°F hard-freeze dates, about Mar 26 and Nov 10 and the ~229-day span between themNOAA 1991–2020 Climate Normals
- 18 documented contamination sites on the federal record near Red Rock, the closest Nitrate record about 0.1 miles out from the town centreFederal environmental registers
- Red Rock's boundary and the 159 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~229-day seasonGrowable Ground crop-matching engine
- The ecoregion at Red Rock's own centroid, the Central Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Red Rock's 159 acres read through its county's SSURGO summaryfrom Noble County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Noble 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 Noble County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Red Rock's 159 acreswhy one lot differs from the next →
- Which side of Red Rock you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 159 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.1 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 Red Rock-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaRed Rock sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides