Jacksboro, 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 Jacksboro, 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 Jacksboro 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 Jacksboro — soil, climate, flood, and parcel records. How we handle your address.
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Jacksboro — the short answer
Jacksboro, Texas: USDA zone 8a, about 258 days between hard freezes, across 5K acres of city.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 9
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~258
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 5K 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 Jacksboro's average, not your lot's — a low corner or a tree line moves it. Against Jacksboro's 258-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Jacksboro
Each reading below is measured for Jacksboro itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredJacksboro runs about 258 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
MeasuredJacksboro 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 Jacksboro is in
Jacksboro sits in the Cross Timbers — EPA Level III, inside the wider Great Plains. That is read at Jacksboro's own centroid rather than borrowed from Jack County.
What Grows in Jacksboro
Every plant below cleared Jacksboro's own zone 8a and its 258-day season. Each card opens that plant's Texas profile. How we score.
Is it too late to plant in Jacksboro?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 9; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 9 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 22 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
What's on the federal record near Jacksboro
Closest first, within ~10 miles of Jacksboro. Listing isn't leaking, and distance isn't exposure.
- FORREST C LEMONDUnderground Storage Tanks · 300 ft
- LAST STOP TRUCK STOPUnderground Storage Tanks · 700 ft
- LOWES 166Underground Storage Tanks · 1000 ft
- BEST AUTO REPAIRUnderground Storage Tanks · 1100 ft
- ALLSUPS 327Underground Storage Tanks · 1900 ft
- JACKSBORO 66Underground Storage Tanks · 1900 ft
- MR CUT RATEUnderground Storage Tanks · 1900 ft
- NEWBERRY EXXONUnderground Storage Tanks · 2100 ft
- THE DONUT PALACEUnderground Storage Tanks · 2100 ft
- JACKSBORO CLEANERSBrownfields · 2200 ft
- TRACTOR SUPPLY COMPANY #1999Brownfields · 2600 ft
- JACKSBORO CENTRAL OFFICEUnderground Storage Tanks · 0.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Jacksboro'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 Jacksboro.
Severity Distribution
within ~10 miles of Jacksboro
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Jacksboro, Underground Storage Tanks runs higher than the national average — 34 sites within ~10 miles of Jacksboro. 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 Jacksboro
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 Jacksboro average
Your land is one point inside Jacksboro
Everything above resolves to Jacksboro as a whole — one PHZM band and one 28°F frost record, read across 5K 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 Jacksboro Average
Jacksboro Average
- ●USDA Zones 8a, averaged across Jacksboro
- ●One soil character for all of Jacksboro
- ●Frost dates read at Jacksboro's scale: Mar 9 to Nov 22
YOUR Parcel
- ✓Your exact zone, not Jacksboro's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Jacksboro
Pull a site-specific report for your exact address in Jacksboro, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Jacksboro averages can't show:
We read public map data around Jacksboro — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Jacksboro average
How we know this about Jacksboro
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 Jacksboro’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 Jacksboro
When does frost risk typically end in Jacksboro?
The last hard freeze (28°F) in Jacksboro typically lands around Mar 9, 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 30.
When is the first frost in Jacksboro?
The first hard freeze (28°F) in Jacksboro typically arrives around Nov 22, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 8, so the watching starts about Oct 23 — about 258 days after the spring freeze cleared.
How long is the growing season in Jacksboro?
Measured between 28°F hard freezes, Jacksboro sees about 258 frost-free days — roughly Mar 9 through Nov 22, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 30 to Nov 8, about 223 days.
Is the soil safe to grow vegetables in Jacksboro?
The federal record around Jacksboro shows 37 documented sites, mostly Underground Storage Tanks entries (34), 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 Jacksboro?
From about Oct 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 Nov 22 (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 22. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Jacksboro's scale — its 8a band and its 258-day season. Your yard writes its own version of Jacksboro'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 Jacksboro’s own scale
6 of the readings below were taken at Jacksboro's own scale — its own ~258-day season between 28°F freezes, the 4,625 acres it covers and 37 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Jacksboro's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Jacksboro's own 28°F hard-freeze dates, about Mar 9 and Nov 22 and the ~258-day span between themNOAA 1991–2020 Climate Normals
- 37 documented contamination sites on the federal record near Jacksboro, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Jacksboro's boundary and the 4,625 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~258-day seasonGrowable Ground crop-matching engine
- The ecoregion at Jacksboro's own centroid, the Cross TimbersUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Jacksboro's 4,625 acres read through its county's SSURGO summaryfrom Jack County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Jack 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 Jack County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Jacksboro's 4,625 acreswhy one lot differs from the next →
- Which side of Jacksboro you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,625 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 Jacksboro-wide figureread your own land →
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