River Oaks, Texas, sits in USDA hardiness zone 8b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Reliable performers under these conditions include cabbage, fig, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in River Oaks, 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 River Oaks 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 River Oaks — soil, climate, flood, and parcel records. How we handle your address.
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River Oaks — the short answer
River Oaks, Texas: USDA zone 8b, about 292 days between hard freezes, across 1K acres of city.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 14
- Tarrant County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 3
- Tarrant County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~292
- Tarrant County normal — NOAA 1991–2020, nearest to this town
- City area
- 1K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Tarrant County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is River Oaks's average, not your lot's — a low corner or a tree line moves it. Against River Oaks's 292-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in River Oaks
Each reading below is measured for River Oaks itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsRiver Oaks runs about 292 days between hard freezes (read from Tarrant County, the closest normal to River Oaks) — close to year-round growing.
Frost is rarely the limit here; winter plantings are as real as summer ones, and the harder question is which crops shrug off the summer heat.
Grow cool-season crops through the mild winter, and choose heat-tolerant varieties for the summer beds.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredRiver Oaks sits in USDA hardiness zone 8b.
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 River Oaks is in
River Oaks sits in the Cross Timbers — EPA Level III, inside the wider Great Plains. That is read at River Oaks's own centroid rather than borrowed from Tarrant County.
What Grows in River Oaks
Every plant below cleared River Oaks's own zone 8b and its 292-day season. Each card opens that plant's Texas profile. How we score.
Is it too late to plant in River Oaks?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Jan 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 14 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 3 — long-season crops need about 90 days of runway, quick greens only 30. In a climate this gentle, “too late” hardly applies — the question becomes which crops prefer the cooler months ahead.
What's on the federal record near River Oaks
Closest first, within ~10 miles of River Oaks. Listing isn't leaking, and distance isn't exposure.
- TOWN TIRES AND AUTO SERVICEUnderground Storage Tanks · 750 ft
- A&B MUFFLERUnderground Storage Tanks · 800 ft
- RIVER OAKS TIRE & SERVICEUnderground Storage Tanks · 850 ft
- C C MAKARWICHUnderground Storage Tanks · 900 ft
- FT WORTH AUTO SUPPLYUnderground Storage Tanks · 1000 ft
- STOP N SAVE FOOD MART 1Underground Storage Tanks · 1500 ft
- LARRY L WHITEUnderground Storage Tanks · 1500 ft
- WESTERN AUTOUnderground Storage Tanks · 1600 ft
- CITY OF RIVER OAKSUnderground Storage Tanks · 1700 ft
- RIVER OAKS MERCURY SPILLSuperfund · 2300 ft
- CALVERTS CHEVRONUnderground Storage Tanks · 2500 ft
- FAMILY DOLLAR #3127Brownfields · 0.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from River Oaks'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 River Oaks.
Sources Checked
within ~10 miles of River Oaks
Severity Distribution
within ~10 miles of River Oaks
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around River Oaks, two things run higher than the national average within ~10 miles of River Oaks — Toxics Release Inventory (191 sites) and Underground Storage Tanks (1,804 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in River Oaks
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 River Oaks average
Your land is one point inside River Oaks
Everything above resolves to River Oaks as a whole — one PHZM band, read across 1K acres, with hard-freeze dates borrowed from Tarrant County’s record because no 30-year normal resolves at this city’s own centroid. 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 city 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 River Oaks Average
River Oaks Average
- ●USDA Zones 8b, averaged across River Oaks
- ●One soil character for all of River Oaks
- ●Frost dates read at River Oaks's scale: Feb 14 to Dec 3
YOUR Parcel
- ✓Your exact zone, not River Oaks's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in River Oaks
Pull a site-specific report for your exact address in River Oaks, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that River Oaks averages can't show:
We read public map data around River Oaks — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the River Oaks average
How we know this about River Oaks
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Tarrant County’s record, because none resolves here; 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 city grain anywhere on this page — there is no city-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 River Oaks
When does frost risk typically end in River Oaks?
The last hard freeze (28°F) in River Oaks typically lands around Feb 14, 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 Mar 7.
When is the first frost in River Oaks?
The first hard freeze (28°F) in River Oaks typically arrives around Dec 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 19, so the watching starts about Nov 3 — about 292 days after the spring freeze cleared.
How long is the growing season in River Oaks?
Measured between 28°F hard freezes, River Oaks sees about 292 frost-free days — roughly Feb 14 through Dec 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 7 to Nov 19, about 257 days.
Is the soil safe to grow vegetables in River Oaks?
The federal record around River Oaks is a meaningful one — 2,441 documented sites, mostly Underground Storage Tanks entries (1,804), the nearest Underground Storage Tanks record about 0.1 miles 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 River Oaks?
From about Nov 3 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 Dec 3 (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 Dec 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at River Oaks's scale — its 8b band and its 292-day season. Your yard writes its own version of River Oaks'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 River Oaks’s own scale
5 of the readings below were taken at River Oaks's own scale — the 1,299 acres it covers and 2,441 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- River Oaks's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 2,441 documented contamination sites on the federal record near River Oaks, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- River Oaks's boundary and the 1,299 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~292-day seasonGrowable Ground crop-matching engine
- The ecoregion at River Oaks's own centroid, the Cross TimbersUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — River Oaks has no normal of its own, so its county's is the closest measured readfrom Tarrant County
- Soil character — no town-scale survey exists, so River Oaks's 1,299 acres read through its county's SSURGO summaryfrom Tarrant County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Tarrant County
- The growing challenges every Texas grower plans around — written at state scale, so they stay on the state guidefrom Texas
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Tarrant County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among River Oaks's 1,299 acreswhy one lot differs from the next →
- Which side of River Oaks you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,299 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 River Oaks-wide figureread your own land →
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