Callisburg, Texas, sits in USDA hardiness zone 8a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Expect cabbage, fig, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Callisburg, 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 Callisburg 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 Callisburg — soil, climate, flood, and parcel records. How we handle your address.
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Callisburg — the short answer
Callisburg, Texas: USDA zone 8a, about 269 days between hard freezes, across 1K acres of city.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~269
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 1K 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 8a is Callisburg's average, not your lot's — a low corner or a tree line moves it. Against Callisburg's 269-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Callisburg
Each reading below is measured for Callisburg itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredCallisburg runs about 269 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
Winter hardiness
MeasuredCallisburg sits in USDA hardiness zone 8a.
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 Callisburg is in
Callisburg sits in the Cross Timbers — EPA Level III, inside the wider Great Plains. That is read at Callisburg's own centroid rather than borrowed from Cooke County.
What Grows in Callisburg
Every plant below cleared Callisburg's own zone 8a and its 269-day season. Each card opens that plant's Texas profile. How we score.
Is it too late to plant in Callisburg?
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 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 1 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 25 — 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.
What's on the federal record near Callisburg
Closest first, within ~10 miles of Callisburg. Listing isn't leaking, and distance isn't exposure.
- CALLISBURG STOREUnderground Storage Tanks · 1500 ft
- LAKEWAY GROCERYUnderground Storage Tanks · 3.5 mi
- TEXAS PICK-UPUnderground Storage Tanks · 3.6 mi
- 82 TRAVEL CENTERUnderground Storage Tanks · 5.2 mi
- TWO WAY SUDPFAS · 5.5 mi
- WOODBINE WSCPFAS · 5.5 mi
- CITY OF WHITESBOROPFAS · 5.5 mi
- B & M GROCERYUnderground Storage Tanks · 6.1 mi
- SCOTTS GARAGE & BODY SHOPBrownfields · 6.3 mi
- FRANK WAGGONERUnderground Storage Tanks · 6.3 mi
- WHITESBORO STOREUnderground Storage Tanks · 6.4 mi
- MERCER WELL SERVICEUnderground Storage Tanks · 6.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Callisburg'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 Callisburg.
Total Sites
154
within ~10 miles of Callisburg
Risk Level
Elevated
Highest-severity
12 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Callisburg
Severity Distribution
within ~10 miles of Callisburg
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Callisburg, two things run higher than the national average within ~10 miles of Callisburg — PFAS (6 sites) and Toxics Release Inventory (12 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Callisburg
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 Callisburg average
Your land is one point inside Callisburg
Everything above resolves to Callisburg as a whole — one PHZM band and one 28°F frost record, read across 1K 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 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 Callisburg Average
Callisburg Average
- ●USDA Zones 8a, averaged across Callisburg
- ●One soil character for all of Callisburg
- ●Frost dates read at Callisburg's scale: Mar 1 to Nov 25
YOUR Parcel
- ✓Your exact zone, not Callisburg's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Callisburg
Pull a site-specific report for your exact address in Callisburg, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Callisburg averages can't show:
We read public map data around Callisburg — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Callisburg average
How we know this about Callisburg
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 Callisburg’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 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 Callisburg
When does frost risk typically end in Callisburg?
The last hard freeze (28°F) in Callisburg typically lands around Mar 1, 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 22.
When is the first frost in Callisburg?
The first hard freeze (28°F) in Callisburg typically arrives around Nov 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 11, so the watching starts about Oct 26 — about 269 days after the spring freeze cleared.
How long is the growing season in Callisburg?
Measured between 28°F hard freezes, Callisburg sees about 269 frost-free days — roughly Mar 1 through Nov 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 22 to Nov 11, about 234 days.
Is the soil safe to grow vegetables in Callisburg?
The federal record around Callisburg is a meaningful one — 154 documented sites, mostly Underground Storage Tanks entries (118), the nearest Underground Storage Tanks record about 0.3 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 Callisburg?
From about Oct 26 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 25 (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 25. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Callisburg's scale — its 8a band and its 269-day season. Your yard writes its own version of Callisburg'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 Callisburg’s own scale
6 of the readings below were taken at Callisburg's own scale — its own ~269-day season between 28°F freezes, the 1,311 acres it covers and 154 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Callisburg's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Callisburg's own 28°F hard-freeze dates, about Mar 1 and Nov 25 and the ~269-day span between themNOAA 1991–2020 Climate Normals
- 154 documented contamination sites on the federal record near Callisburg, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Callisburg's boundary and the 1,311 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~269-day seasonGrowable Ground crop-matching engine
- The ecoregion at Callisburg's own centroid, the Cross TimbersUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Callisburg's 1,311 acres read through its county's SSURGO summaryfrom Cooke County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Cooke 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 Cooke County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Callisburg's 1,311 acreswhy one lot differs from the next →
- Which side of Callisburg you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,311 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.3 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 Callisburg-wide figureread your own land →
More in Texas
Wider growing context
What grows across TexasCallisburg sits outside our named growing regions, so Texas as a whole is its closest context here.
Nearby growing guides