Coolidge, Texas, sits in USDA hardiness zone 8b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Crops well matched to these conditions include cabbage, fig, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Coolidge, 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 Coolidge 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 Coolidge — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Coolidge — the short answer
Coolidge, Texas: USDA zone 8b, about 289 days between hard freezes, across 607 acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 16
- Limestone County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 2
- Limestone County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~289
- Limestone County normal — NOAA 1991–2020, nearest to this town
- Town area
- 607 acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Limestone County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Coolidge's average, not your lot's — a low corner or a tree line moves it. Against Coolidge's 289-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Coolidge
Each reading below is measured for Coolidge itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsCoolidge runs about 289 days between hard freezes (read from Limestone County, the closest normal to Coolidge) — 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
MeasuredCoolidge sits in USDA hardiness zone 8b.
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 Coolidge is in
Coolidge sits in the Texas Blackland Prairies — EPA Level III, inside the wider Great Plains. That is read at Coolidge's own centroid rather than borrowed from Limestone County.
What Grows in Coolidge
Every plant below cleared Coolidge's own zone 8b and its 289-day season. Each card opens that plant's Texas profile. How we score.
Is it too late to plant in Coolidge?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Jan 19; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 16 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 2 — long-season crops need about 90 days of runway, quick greens only 30. In a climate this gentle, “too late” hardly applies — the question becomes which crops prefer the cooler months ahead.
What's on the federal record near Coolidge
Closest first, within ~10 miles of Coolidge. Listing isn't leaking, and distance isn't exposure.
- PEEPLES TELUnderground Storage Tanks · 1500 ft
- COOL STOPUnderground Storage Tanks · 3.1 mi
- TEHUACANA GENERAL STOREUnderground Storage Tanks · Not nearby
- LAKE STOPUnderground Storage Tanks · 6.6 mi
- SD-39-20-301Nitrate · 6.8 mi
- SD-39-12-902Nitrate · 8.1 mi
- SD-39-20-603Nitrate · 8.3 mi
- SD-39-20-609Nitrate · 8.3 mi
- TY-39-12-602Nitrate · 9.0 mi
- LIDE TANK CO INCToxics Release Inventory · 9.3 mi
- LIDE INDUSTRIES MEXIAToxics Release Inventory · 9.6 mi
- MEXIA TIRE SERVICEUnderground Storage Tanks · 9.9 mi
Measured from Coolidge'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 Coolidge.
Total Sites
17
within ~10 miles of Coolidge
Risk Level
Low
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Coolidge
Severity Distribution
within ~10 miles of Coolidge
Highest-Severity Sites
Know Before You Grow
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •TRI facilities report what they release. Check the wind — downwind beds catch more of it.
Check your specific parcel in Coolidge
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 Coolidge average
Your land is one point inside Coolidge
Everything above resolves to Coolidge as a whole — one PHZM band, read across 607 acres, with hard-freeze dates borrowed from Limestone County’s record because no 30-year normal resolves at this town’s own centroid. 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 Coolidge Average
Coolidge Average
- ●USDA Zones 8b, averaged across Coolidge
- ●One soil character for all of Coolidge
- ●Frost dates read at Coolidge's scale: Feb 16 to Dec 2
YOUR Parcel
- ✓Your exact zone, not Coolidge's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Coolidge
Pull a site-specific report for your exact address in Coolidge, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Coolidge averages can't show:
We read public map data around Coolidge — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Coolidge average
How we know this about Coolidge
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 Limestone County’s record, because none resolves here; 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 Coolidge
When does frost risk typically end in Coolidge?
The last hard freeze (28°F) in Coolidge typically lands around Feb 16, 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 9.
When is the first frost in Coolidge?
The first hard freeze (28°F) in Coolidge typically arrives around Dec 2, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 18, so the watching starts about Nov 2 — about 289 days after the spring freeze cleared.
How long is the growing season in Coolidge?
Measured between 28°F hard freezes, Coolidge sees about 289 frost-free days — roughly Feb 16 through Dec 2, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 9 to Nov 18, about 254 days.
Is the soil safe to grow vegetables in Coolidge?
The federal record around Coolidge is light — 17 documented sites across the 9 federal source types we checked, mostly Nitrate entries (10), the nearest Underground Storage Tanks record about 0.3 miles out — 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.
How do I protect my plants from frost in Coolidge?
From about Nov 2 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 Dec 2 (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 Dec 2. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Coolidge's scale — its 8b band and its 289-day season. Your yard writes its own version of Coolidge'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 Coolidge’s own scale
5 of the readings below were taken at Coolidge's own scale — the 607 acres it covers and 17 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Coolidge's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 17 documented contamination sites on the federal record near Coolidge, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Coolidge's boundary and the 607 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~289-day seasonGrowable Ground crop-matching engine
- The ecoregion at Coolidge's own centroid, the Texas Blackland PrairiesUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Coolidge has no normal of its own, so its county's is the closest measured readfrom Limestone County
- Soil character — no town-scale survey exists, so Coolidge's 607 acres read through its county's SSURGO summaryfrom Limestone County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Limestone 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 Limestone County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Coolidge's 607 acreswhy one lot differs from the next →
- Which side of Coolidge you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 607 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 Coolidge-wide figureread your own land →
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