Arroyo Colorado Estates, Texas, sits in USDA hardiness zone 10a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include okra, meyer lemon, california poppy, and artichoke; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Arroyo Colorado Estates, 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 Arroyo Colorado Estates 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 Arroyo Colorado Estates — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Arroyo Colorado Estates — the short answer
Arroyo Colorado Estates, Texas: USDA zone 10a, about 335 days between hard freezes, across 691 acres of town.
- USDA zone
- 10a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Jan 22
- Cameron County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 23
- Cameron County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~335
- Cameron County normal — NOAA 1991–2020, nearest to this town
- Town area
- 691 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 Cameron County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 10a is Arroyo Colorado Estates's average, not your lot's — a low corner or a tree line moves it. Against Arroyo Colorado Estates's 335-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Arroyo Colorado Estates
Each reading below is measured for Arroyo Colorado Estates itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
From county recordsArroyo Colorado Estates runs about 335 days between hard freezes (read from Cameron County, the closest normal to Arroyo Colorado Estates) — 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
MeasuredArroyo Colorado Estates sits in USDA hardiness zone 10a.
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 Arroyo Colorado Estates is in
Arroyo Colorado Estates sits in the Western Gulf Coastal Plain — EPA Level III, inside the wider Great Plains. That is read at Arroyo Colorado Estates's own centroid rather than borrowed from Cameron County.
What Grows in Arroyo Colorado Estates
Every plant below cleared Arroyo Colorado Estates's own zone 10a and its 335-day season. Each card opens that plant's Texas profile. How we score.






























Is it too late to plant in Arroyo Colorado Estates?
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 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Jan 22 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 23 — 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 Arroyo Colorado Estates
Closest first, within ~10 miles of Arroyo Colorado Estates. Listing isn't leaking, and distance isn't exposure.
- FRUIT OF THE LOOM TEXAS INCToxics Release Inventory · 0.6 mi
- CARDONE INDUSTRIESBrownfields · 0.6 mi
- TYCO VALVES & CONTROLS HARLINGENBrownfields · 0.6 mi
- TYCO VALVES & CONTROLS HARLINGENToxics Release Inventory · 0.6 mi
- SOUTH TEXAS CHLORINE, INC.Toxics Release Inventory · 0.9 mi
- PENN ALUMINUM INTERNATIONALBrownfields · 0.9 mi
- HARLINGEN REFINED PRODUCTS TERMINALToxics Release Inventory · 1.3 mi
- TITAN FUEL TERMINALS HARLINGEN, LLCToxics Release Inventory · 1.4 mi
- TITAN FUEL TERMINALS HARLINGENBrownfields · 1.4 mi
- TITAN FUEL TERMINALSToxics Release Inventory · 1.4 mi
- ASPHALT PRODUCTS FM 1595Toxics Release Inventory · 1.5 mi
- TYCO VALVES & CONTROL -HARLINGENUnderground Storage Tanks · 1.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Arroyo Colorado Estates'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 Arroyo Colorado Estates.
Total Sites
509
within ~10 miles of Arroyo Colorado Estates
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Arroyo Colorado Estates
Severity Distribution
within ~10 miles of Arroyo Colorado Estates
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Arroyo Colorado Estates, Underground Storage Tanks runs higher than the national average — 411 sites within ~10 miles of Arroyo Colorado Estates. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Arroyo Colorado Estates
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 Arroyo Colorado Estates average
Your land is one point inside Arroyo Colorado Estates
Everything above resolves to Arroyo Colorado Estates as a whole — one PHZM band, read across 691 acres, with hard-freeze dates borrowed from Cameron County’s record because no 30-year normal resolves at this town’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 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 Arroyo Colorado Estates Average
Arroyo Colorado Estates Average
- ●USDA Zones 10a, averaged across Arroyo Colorado Estates
- ●One soil character for all of Arroyo Colorado Estates
- ●Frost dates read at Arroyo Colorado Estates's scale: Jan 22 to Dec 23
YOUR Parcel
- ✓Your exact zone, not Arroyo Colorado Estates's 10a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Arroyo Colorado Estates
Pull a site-specific report for your exact address in Arroyo Colorado Estates, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Arroyo Colorado Estates averages can't show:
We read public map data around Arroyo Colorado Estates — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Arroyo Colorado Estates average
How we know this about Arroyo Colorado Estates
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 Cameron 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 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 Arroyo Colorado Estates
When does frost risk typically end in Arroyo Colorado Estates?
The last hard freeze (28°F) in Arroyo Colorado Estates typically lands around Jan 22, 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 Feb 12.
When is the first frost in Arroyo Colorado Estates?
The first hard freeze (28°F) in Arroyo Colorado Estates typically arrives around Dec 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Dec 9, so the watching starts about Nov 23 — about 335 days after the spring freeze cleared.
How long is the growing season in Arroyo Colorado Estates?
Measured between 28°F hard freezes, Arroyo Colorado Estates sees about 335 frost-free days — roughly Jan 22 through Dec 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 12 to Dec 9, about 300 days.
Is the soil safe to grow vegetables in Arroyo Colorado Estates?
The federal record around Arroyo Colorado Estates is a meaningful one — 509 documented sites, mostly Underground Storage Tanks entries (411), the nearest Toxics Release Inventory record about 0.6 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 Arroyo Colorado Estates?
From about Nov 23 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 23 (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 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Arroyo Colorado Estates's scale — its 10a band and its 335-day season. Your yard writes its own version of Arroyo Colorado Estates'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 Arroyo Colorado Estates’s own scale
5 of the readings below were taken at Arroyo Colorado Estates's own scale — the 691 acres it covers and 509 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Arroyo Colorado Estates's own USDA hardiness band, zones 10aUSDA PHZM 2023
- 509 documented contamination sites on the federal record near Arroyo Colorado Estates, the closest Toxics Release Inventory record about 0.6 miles out from the town centreFederal environmental registers
- Arroyo Colorado Estates's boundary and the 691 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 10a and a ~335-day seasonGrowable Ground crop-matching engine
- The ecoregion at Arroyo Colorado Estates's own centroid, the Western Gulf Coastal PlainUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Arroyo Colorado Estates has no normal of its own, so its county's is the closest measured readfrom Cameron County
- Soil character — no town-scale survey exists, so Arroyo Colorado Estates's 691 acres read through its county's SSURGO summaryfrom Cameron County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Cameron 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 Cameron County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Arroyo Colorado Estates's 691 acreswhy one lot differs from the next →
- Which side of Arroyo Colorado Estates you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 691 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Toxics Release Inventory record about 0.6 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 Arroyo Colorado Estates-wide figureread your own land →
