Whitharral, Texas, sits in USDA hardiness zone 7b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Reliable performers under these conditions include cabbage, prickly pear, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Whitharral, 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 Whitharral 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 Whitharral — soil, climate, flood, and parcel records. How we handle your address.
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Whitharral — the short answer
Whitharral, Texas: USDA zone 7b, about 229 days between hard freezes, across 711 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 11
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~229
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 711 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 7b is Whitharral's average, not your lot's — a low corner or a tree line moves it. Against Whitharral's 229-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Whitharral
Each reading below is measured for Whitharral itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWhitharral 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
MeasuredWhitharral sits in USDA hardiness zone 7b.
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 Whitharral is in
Whitharral sits in the High Plains — EPA Level III, inside the wider Great Plains. That is read at Whitharral's own centroid rather than borrowed from Hockley County.
What Grows in Whitharral
Every plant below cleared Whitharral's own zone 7b and its 229-day season. Each card opens that plant's Texas profile. How we score.
Is it too late to plant in Whitharral?
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 Feb 27; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 27 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 11 — 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 Whitharral
Closest first, within ~10 miles of Whitharral. Listing isn't leaking, and distance isn't exposure.
- FARMERS COOP ASSN OF WHITHARRALUnderground Storage Tanks · 500 ft
- WHITHARRAL COOP GINUnderground Storage Tanks · 500 ft
- SUN OIL CO J J HOBGOODBrownfields · 1200 ft
- LX-24-14-803Nitrate · 1.8 mi
- BAKER PETROLITEBrownfields · 3.5 mi
- CRENSHAW FARMUnderground Storage Tanks · 9.0 mi
- DOWELL SCHLUMBERGERUnderground Storage Tanks · 9.1 mi
- LEVELLAND GINUnderground Storage Tanks · 9.1 mi
- LEVELLAND CAR CAREUnderground Storage Tanks · 9.1 mi
- AMOCO SLAUGHTER GAS PLANTUnderground Storage Tanks · 9.1 mi
- AMOCO PROD PRENTICE FDUnderground Storage Tanks · 9.1 mi
- AMOCO PROD W SLAUGHTERUnderground Storage Tanks · 9.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Whitharral'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 Whitharral.
Sources Checked
within ~10 miles of Whitharral
Severity Distribution
within ~10 miles of Whitharral
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Whitharral, Underground Storage Tanks runs higher than the national average — 55 sites within ~10 miles of Whitharral. 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 Whitharral
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 Whitharral average
Your land is one point inside Whitharral
Everything above resolves to Whitharral as a whole — one PHZM band and one 28°F frost record, read across 711 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 Whitharral Average
Whitharral Average
- ●USDA Zones 7b, averaged across Whitharral
- ●One soil character for all of Whitharral
- ●Frost dates read at Whitharral's scale: Mar 27 to Nov 11
YOUR Parcel
- ✓Your exact zone, not Whitharral's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Whitharral
Pull a site-specific report for your exact address in Whitharral, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Whitharral averages can't show:
We read public map data around Whitharral — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Whitharral average
How we know this about Whitharral
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 Whitharral’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 Whitharral
When does frost risk typically end in Whitharral?
The last hard freeze (28°F) in Whitharral typically lands around Mar 27, 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 17.
When is the first frost in Whitharral?
The first hard freeze (28°F) in Whitharral typically arrives around Nov 11, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 28, so the watching starts about Oct 12 — about 229 days after the spring freeze cleared.
How long is the growing season in Whitharral?
Measured between 28°F hard freezes, Whitharral sees about 229 frost-free days — roughly Mar 27 through Nov 11, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 17 to Oct 28, about 194 days.
Is the soil safe to grow vegetables in Whitharral?
The federal record around Whitharral shows 60 documented sites, mostly Underground Storage Tanks entries (55), the nearest Underground Storage Tanks record under a tenth of a mile 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.
How do I protect my plants from frost in Whitharral?
From about Oct 12 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 11 (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 11. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Whitharral's scale — its 7b band and its 229-day season. Your yard writes its own version of Whitharral'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 Whitharral’s own scale
6 of the readings below were taken at Whitharral's own scale — its own ~229-day season between 28°F freezes, the 711 acres it covers and 60 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Whitharral's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Whitharral's own 28°F hard-freeze dates, about Mar 27 and Nov 11 and the ~229-day span between themNOAA 1991–2020 Climate Normals
- 60 documented contamination sites on the federal record near Whitharral, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Whitharral's boundary and the 711 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~229-day seasonGrowable Ground crop-matching engine
- The ecoregion at Whitharral's own centroid, the High PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Whitharral's 711 acres read through its county's SSURGO summaryfrom Hockley County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Hockley 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 Hockley County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Whitharral's 711 acreswhy one lot differs from the next →
- Which side of Whitharral you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 711 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Whitharral-wide figureread your own land →