Stonewall County, in Texas, sits in USDA hardiness zone 8a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Growers here do well with pecan, tomato, okra, and bluebonnet — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Stonewall County holds more than one microclimate.
Soils and elevations shift across Stonewall County, so your frost dates and drainage aren't the county average. Enter your address and we'll score 1,112 plants against your land's actual soil, sun, and frost.
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Quick Facts
USDA Zones
8a
Last Hard Freeze (28°F)
Feb 4
County normal — light frosts run a few weeks later
First Hard Freeze (28°F)
Dec 18
County normal — light frosts arrive a few weeks earlier
County Area
586K acres
Hardiness Zone Range
Zone maps are averages across Stonewall County. Your yard's slope, trees, and frost pockets shift what actually grows — see your land's exact reading.
Soil in Stonewall County
Across Stonewall County, the ground is predominantly Alfisols, where Tillman, Nobscot, and Knoco are the most extensive named soil series. The soil is generally well drained with a clay loam surface. Topsoil pH runs about 7.0–8.2, slightly alkaline. Rainfall drains through hydrologic group D soils.
Soil order
Alfisols
Drainage
Well drained
Prime farmland
28%
Hydric soils
0%
Soil still varies lot by lot — soil types explained.
What Grows in Stonewall County
Plants matched to Stonewall County's USDA zones 8a — each links to its full growing profile.











Is it too late to plant in Stonewall County?
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 Jan 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 4 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 18 — long-season crops need about 90 days of runway, quick greens only 30. Here the calendar nearly circles: cool-season crops take the winter shift, and the next window is always close.

Growing Challenges in Texas
What an experienced grower plans around here — each one has a move.

Extreme heat (100F+ days) stresses many crops from June through September
Run the garden on spring and fall windows and give summer survivors afternoon shade — timing beats fighting the heat.

Rainfall varies dramatically — 8 inches in west TX to 56 inches in east TX
Your county's rainfall, not the state's, sets the watering plan — check your exact spot before designing beds.

Heavy black clay (Blackland Prairie) is difficult to work and drains poorly
A raised bed with amended soil turns Blackland clay from an obstacle into a backdrop — and that clay feeds deep roots well.

Flash drought conditions can develop rapidly even in wet years
Mulch deep and water deeply-but-rarely to grow drought-tough roots; a drip system pays for itself in the first dry summer.
For cultivar selection, pest pressure, and planting-time guidance specific to Texas, the Texas A&M AgriLife Extension Service is the authoritative local source.
Safe to Grow Here?
What the federal record shows across Stonewall County — and how to grow with it.
We checked the federal record across Stonewall County — 30 documented sites across 2 of the 9 source types we track.
The most significant on record: 15 mining sites. Historic and active mines that may leach heavy metals like arsenic, lead, and cadmium.
The federal record across Stonewall County is light. Growing food here starts from a strong position — a quick pass over the map tells you whether any recorded site sits near your land, and if one does, that's information to plant with, not a reason to stop.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
Environmental Intelligence
Understanding what's nearby helps you make informed decisions about where and how to grow.
Severity Distribution
across Stonewall County
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Stonewall County, Mining runs higher than the national average — 15 sites nearby. That's not a problem with your land — it's information about it.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in Stonewall County
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,112 plant recommendations.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
Your Specific Parcel Matters
Stonewall County Average
- ●USDA Zones 8a
- ●Generic soil type for the area
- ●State-average frost dates
YOUR Parcel
- ✓Your exact hardiness zone
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Stonewall County
Pull a site-specific report for your exact address in Stonewall County, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
Key Growing Facts for Stonewall County, Texas
- USDA Hardiness Zones: 8a (USDA PHZM 2023)
- Last Hard Freeze (28°F): Feb 4 (county normal, NOAA 1991–2020 Climate Normals — light frosts can follow for a few weeks)
- First Hard Freeze (28°F): Dec 18 (county normal, NOAA 1991–2020 Climate Normals — light frosts can arrive a few weeks earlier)
- Days Between Hard Freezes: ~317 (county normal, NOAA 1991–2020 Climate Normals)
- County Land Area: 586K acres (US Census TIGER 2025)
Zone data: USDA ARS Plant Hardiness Zone Map 2023. Climate data: NOAA NCEI. County boundaries: US Census TIGER/Line 2025.
Frost dates here are the Stonewall County average. Low spots and tree cover move them by days on any one yard — see your exact frost windows.
Frequently Asked Questions
What hardiness zone is Stonewall County, Texas?
Stonewall County sits in USDA hardiness zone 8a, per the USDA Plant Hardiness Zone Map 2023. Zones reflect average annual extreme minimum temperatures from 1991–2020 weather data.
Is it too late to plant in Stonewall County?
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 Jan 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 4 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 18 — long-season crops need about 90 days of runway, quick greens only 30. Here the calendar nearly circles: cool-season crops take the winter shift, and the next window is always close.
When does frost risk typically end in Stonewall County?
The last hard freeze (28°F) in Stonewall County typically lands around Feb 4, per NOAA 1991–2020 climate normals — an earlier marker than the light-frost dates many planting charts quote. That marks the hard freeze, not the last light frost — light frosts can still bite for a few more weeks, so tender transplants usually wait another 2–3 weeks.
How long is the growing season in Stonewall County?
Measured between 28°F hard freezes, Stonewall County sees about 317 frost-free days — roughly Feb 4 through Dec 18, per NOAA 1991–2020 climate normals. Tender crops get a somewhat shorter practical window, since lighter frosts reach a few weeks past the hard-freeze dates on both ends.
What vegetables grow in Stonewall County?
Stonewall County's zone 8a supports a wide range — strong performers include Pecan, Tomato, Okra, Bluebonnet, and Jalapeno. What actually takes on any one site comes down to its soil, sun, and drainage, and we score each plant against the real conditions at your address.
Which hardiness zone is Stonewall County, really?
Officially, Stonewall County sits in USDA zone 8a (USDA PHZM 2023) — but a zone is a 30-year average of winter's coldest night across an area, and it can't see any one yard. A south-facing slope, a tree line, or a low frost pocket can shift a single site by half a zone either way, which is why neighboring gardeners often quote different numbers. We read the conditions at your exact address — soil, sun, slope, and frost — and score 1,112 plants against what's actually there.
Is the soil safe to grow vegetables in Stonewall County?
The federal record around Stonewall County is light — 30 documented sites across the 9 federal source types we checked — 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.
Just moved to Stonewall County — what should I know before planting?
Start with three facts. Stonewall County sits in USDA zone 8a, which sets what survives winter; the last 28°F hard freeze typically clears around Feb 4, with about 317 frost-free days to work with (NOAA 1991–2020 climate normals); and the local federal record is light — 30 documented sites across the area we checked. From there, matching plants to your actual soil and sun is the fun part.
Everything on this page is a Stonewall County average. Your yard writes its own version — we read soil, sun, drainage, and frost at your exact address. Try it for 14 days — no card required.
Will It Grow Here?
Zone fit is the first question — each answer below reads Texas's frost window, season length, and soil profile against the plant's real requirements.
