Tyler County, in Texas, sits in USDA hardiness zone 9a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Well-matched crops include artichoke, fig, california poppy, and cabbage, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Tyler County lies within the Piney Woods — a regional growing area with its own character.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Tyler County holds more than one microclimate.
Soils and elevations shift across Tyler County, so your frost dates and drainage aren't the county average. 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 Tyler County — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Tyler County — the short answer
Tyler County, Texas: USDA zone 9a, about 305 days between hard freezes, across 592K acres.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 5
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Dec 7
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~305
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 592K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are county 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 9a is Tyler County's average, not your lot's — a low corner or a tree line moves it. Against Tyler County's 305-day season, see what your own ground reads.
Heat and winter chill in Tyler County
Across a year, Tyler County accumulates about 6,444 growing degree days above 50°F, about 620 more than the middle Texas county — ahead of 184 of Texas’s 254 counties. Degree days are the heat a crop actually gets to work with — more of them is more room to ripen a long-season crop before the freeze closes the window.
Winter banks about 605 hours below 45°F, 490 fewer than the Texas middle of 1,095. Chill is what tells a fruit tree its dormancy is over, and it is set by climate rather than by anything you can build.
Grounded in PRISM Climate Group, Oregon State University — 1991–2020 monthly normals
Soil in Tyler County
Across Tyler County, the ground is predominantly Ultisols, where Otanya, Shankler, and Doucette are the most extensive named soil series. The soil is generally well drained with a fine sandy loam surface. Topsoil pH runs about 4.7–5.5, strongly acidic. Rainfall drains through hydrologic group C soils.
Soil order
Ultisols
Drainage
Well drained
Prime farmland
13%
Hydric soils
17%
Soil still varies lot by lot — soil types explained.
How the ground varies across Tyler County
The USDA soil survey maps 38% of Tyler County as well drained — but another 61% drains differently: 30% moderately well drained, 15% somewhat poorly drained.
Otanya is the most extensive named soil at 8% of mapped acres, then Shankler (6%) and Doucette (6%).
Which of them your own lot sits on is a parcel question, not a county one. Check your address for the survey at your boundary.
What this means for growing in Tyler County
Each reading below is measured for Tyler County itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Drainage
MeasuredThe dominant soils across Tyler County are well drained, in hydrologic group C — ground that drains quickly.
The upside is soil you can work early in spring and roots that never drown; the cost is that fast-draining ground dries out fast and leaches nutrients away before plants can use them.
Work in compost and mulch to hold moisture and feed, and water more often in short doses than deep and rarely.
USDA NRCS SSURGO
Surface pH
MeasuredTopsoil across Tyler County runs about pH 4.7–5.5, on the acidic side.
Blueberries, potatoes, and rhododendrons thrive in it, but most vegetables start locking out nutrients below about pH 6.0 and grow pale and stunted no matter how much you feed them.
A measured lime application raises pH for the crops that need it — but test first, because the right rate depends on your own soil, not the county average.
USDA NRCS SSURGO
Wet ground
MeasuredAbout 17% of Tyler County is mapped as hydric — wetland — soil.
If your lot falls in one of those pockets, a standard in-ground bed will fight waterlogging all season, and roots that need air will struggle.
Check how your own ground drains before you dig; raised beds or moisture-loving plantings turn a wet corner from a problem into a niche.
USDA NRCS SSURGO
Season length
MeasuredTyler County runs about 305 days between hard freezes — 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
The kind of country Tyler County is in
Tyler County sits in the South Central Plains — EPA Level III, inside the wider Eastern Temperate Forests. One consistent ecological setting across the whole county.
What Grows in Tyler County
We scored all 1,086 plants against Tyler County's own USDA zone 9a and its own 305-day season between hard freezes, using the same matching engine that runs a full parcel report. These cleared both. Sun, soil pH and drainage vary lot by lot — those are the parcel questions below. Each card opens that plant's Texas profile.
Is it too late to plant in Tyler 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 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 5 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 7 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.
Documented around Tyler County
- monarch butterfly5 documented records
Sighting records, so they follow observers as much as insects.
What gets applied to farmland in Tyler County
USGS estimates 1,096 lb of 2,4-d on Tyler County farmland in 2019, its largest by weight, ahead of Glyphosate (505 lb) and Metolachlor-s (147 lb).
Farmland across the whole county, not any one lot. Check your address for the site-by-site record.
Safe to Grow Here?
What the federal record shows across Tyler County — and how to grow with it.
We checked the federal record across Tyler County — 169 documented sites across 5 of the 9 source types we track.
The most significant on record: 3 Toxics Release Inventory facilities. Active industrial facilities reporting chemical releases to air, water, and land.
The federal record across Tyler County is a modest one — a typical footprint for a growing area. Nothing here calls for alarm; it's worth knowing which recorded sites sit closest to where you grow, and each one on the map carries its type and location. If one turns out to be a near neighbor, a one-time soil test settles the question.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
What's on the federal record near Tyler County
Closest first, across Tyler County. Listing isn't leaking, and distance isn't exposure.
- LARRY TRESS CHRYSLERUnderground Storage Tanks · 750 ft
- TEXAS FOREST SERVICEUnderground Storage Tanks · 750 ft
- DOUCETTE PULPWOOD YARDUnderground Storage Tanks · 750 ft
- JOC 4Underground Storage Tanks · 750 ft
- THIS OLD HOUSEUnderground Storage Tanks · 750 ft
- PECO OILUnderground Storage Tanks · 750 ft
- H & H BOAT DOCK & MARINAUnderground Storage Tanks · 750 ft
- PENSKE TRUCK LEASINGUnderground Storage Tanks · 750 ft
- J & J SATELLITE & VIDEOUnderground Storage Tanks · 750 ft
- CHESTER ISDUnderground Storage Tanks · 750 ft
- JERRYS SAW SHOPUnderground Storage Tanks · 750 ft
- COLMESNEIL JIFFY MARKETUnderground Storage Tanks · 750 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Tyler County'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 Tyler County.
Total Sites
169
across Tyler County
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
across Tyler County
Severity Distribution
across Tyler County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Tyler County, Underground Storage Tanks runs higher than the national average — 105 sites across Tyler County. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Tyler County
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 Tyler County average
Your land is one point inside Tyler County
Everything above resolves to Tyler County as a whole — one PHZM band and one county frost record, read across 592K 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 county 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 county average.
Your Lot vs the Tyler County Average
Tyler County Average
- ●USDA Zones 9a, averaged across Tyler County
- ●One soil character for all of Tyler County
- ●Frost dates read at Tyler County's scale: Feb 5 to Dec 7
YOUR Parcel
- ✓Your exact zone, not Tyler County's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Tyler County
Pull a site-specific report for your exact address in Tyler County, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Tyler County averages can't show:
We read public map data around Tyler County — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Tyler County average
How we know this about Tyler County
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at county grain; hard-freeze dates from NOAA 1991–2020 28°F normals at this county’s own record where one resolves, and the labelled statewide window where none does; soils from the USDA NRCS SSURGO survey, area-weighted across the county’s own map units; boundaries and acreage from US Census TIGER/Line 2025; the contamination and pesticide records from the federal sources named in their beats above. Where Tyler County carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Tyler County
When does frost risk typically end in Tyler County?
The last hard freeze (28°F) in Tyler County typically lands around Feb 5, 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 26.
How long is the growing season in Tyler County?
Measured between 28°F hard freezes, Tyler County sees about 305 frost-free days — roughly Feb 5 through Dec 7, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 26 to Nov 23, about 270 days.
Is the soil safe to grow vegetables in Tyler County?
The federal record around Tyler County shows 169 documented sites, mostly Underground Storage Tanks entries (105), the nearest Underground Storage Tanks record about 0.1 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
Everything above is measured at Tyler County's scale — its 9a band and its 305-day season. Your yard writes its own version of Tyler County's numbers: 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.
What this page reads at Tyler County’s own scale
9 of the readings below were taken at Tyler County's own scale — its own ~305-day span between 28°F freezes, the 3 most extensive soil series mapped here and 169 documented sites inside its boundary; one is borrowed from a wider read, named and linked below.
Measured here
- Tyler County's own USDA hardiness band, zones 9aUSDA PHZM 2023
- Tyler County's own 28°F hard-freeze dates and its ~305-day span between themNOAA 1991–2020 Climate Normals
- The soil order, drainage, surface pH, and the 3 most extensive named soil series mapped in Tyler CountyUSDA NRCS SSURGO
- 169 documented contamination sites inside the county boundary, distance-sorted from its center — the closest Underground Storage Tanks record about 0.1 miles outFederal environmental registers
- Tyler County's boundary and the 591,609 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~305-day seasonGrowable Ground crop-matching engine
- Tyler County sitting wholly inside the South Central PlainsUS EPA Level III Ecoregions
- Open occurrence records documented in Tyler County for a tracked speciesGBIF derived datasets (CC0 / CC BY 4.0)
- Which agricultural compounds go onto Tyler County farmland, and roughly how muchUSGS NAWQA EPest county estimates
Inherited from a wider read
- The growing challenges every Texas grower plans around — written at state scale, so they stay on the state guidefrom Texas
What this page can’t tell you
- How the season shifts across Tyler County — the ~305 days above is one reading at its centre; the 12 towns below each carry their owntowns in this county →
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Tyler County's 591,609 acreswhy one lot differs from the next →
- Which of those 169 documented sites actually reaches your soil — that needs your address, the wind, and the groundwater directionhow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — none of it survives being averaged over Tyler Countyread your own land →