Martindale, Texas, sits in USDA hardiness zone 9a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Among the crops suited to this profile: artichoke, fig, california poppy, and cabbage. The site-level story — soil, sun, drainage — decides the rest.
Even in Martindale, 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 Martindale 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 Martindale — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Martindale — the short answer
Martindale, Texas: USDA zone 9a, about 297 days between hard freezes, across 1K acres of city.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 10
- Caldwell County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 4
- Caldwell County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~297
- Caldwell County normal — NOAA 1991–2020, nearest to this town
- City area
- 1K 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 Caldwell County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Martindale's average, not your lot's — a low corner or a tree line moves it. Against Martindale's 297-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Martindale
Each reading below is measured for Martindale itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsMartindale runs about 297 days between hard freezes (read from Caldwell County, the closest normal to Martindale) — 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
MeasuredMartindale sits in USDA hardiness zone 9a.
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 Martindale is in
Martindale sits in the Texas Blackland Prairies — EPA Level III, inside the wider Great Plains. That is read at Martindale's own centroid, and it is not what its county reads: Caldwell County is mostly East Central Texas Plains. The wider page above you is answering a different question about different ground.
What Grows in Martindale
Every plant below cleared Martindale's own zone 9a and its 297-day season. Each card opens that plant's Texas profile. How we score.
Is it too late to plant in Martindale?
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 13; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 10 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 4 — long-season crops need about 90 days of runway, quick greens only 30. Here the calendar nearly circles: cool-season crops take the winter shift, and the next window is always close.
Documented around Martindale
Survey cells within 31 miles of Martindale checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 624 miles off. What to watch for.
What's on the federal record near Martindale
Closest first, within ~10 miles of Martindale. Listing isn't leaking, and distance isn't exposure.
- EZ XPRESS 2Underground Storage Tanks · 1100 ft
- BU-67-10-101Nitrate · 1900 ft
- BU-67-10-203Nitrate · 1.2 mi
- BU-67-10-103Nitrate · 1.2 mi
- BU-67-10-501Nitrate · 1.4 mi
- BU-67-10-502Nitrate · 1.7 mi
- BU-67-10-201Nitrate · 1.8 mi
- EZ XPRESS 1Underground Storage Tanks · 2.0 mi
- BU-67-10-202Nitrate · 2.2 mi
- KX-67-10-404Nitrate · 2.8 mi
- 7-ELEVEN STORE 40562Underground Storage Tanks · 3.6 mi
- BU-67-10-504Nitrate · 3.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Martindale'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 Martindale.
Total Sites
316
within ~10 miles of Martindale
Risk Level
Elevated
Highest-severity
10 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Martindale
Severity Distribution
within ~10 miles of Martindale
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Martindale, two things run higher than the national average within ~10 miles of Martindale — Nitrate (148 sites) and PFAS (4 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Martindale
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 Martindale average
Your land is one point inside Martindale
Everything above resolves to Martindale as a whole — one PHZM band, read across 1K acres, with hard-freeze dates borrowed from Caldwell County’s record because no 30-year normal resolves at this city’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 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 Martindale Average
Martindale Average
- ●USDA Zones 9a, averaged across Martindale
- ●One soil character for all of Martindale
- ●Frost dates read at Martindale's scale: Feb 10 to Dec 4
YOUR Parcel
- ✓Your exact zone, not Martindale's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Martindale
Pull a site-specific report for your exact address in Martindale, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Martindale averages can't show:
We read public map data around Martindale — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Martindale average
How we know this about Martindale
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 Caldwell 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 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 Martindale
When does frost risk typically end in Martindale?
The last hard freeze (28°F) in Martindale typically lands around Feb 10, 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 3.
When is the first frost in Martindale?
The first hard freeze (28°F) in Martindale typically arrives around Dec 4, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 20, so the watching starts about Nov 4 — about 297 days after the spring freeze cleared.
How long is the growing season in Martindale?
Measured between 28°F hard freezes, Martindale sees about 297 frost-free days — roughly Feb 10 through Dec 4, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 3 to Nov 20, about 262 days.
Is the soil safe to grow vegetables in Martindale?
The federal record around Martindale is a meaningful one — 316 documented sites, mostly Nitrate entries (148), the nearest Underground Storage Tanks record about 0.2 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 Martindale?
From about Nov 4 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 4 (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 4. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Martindale's scale — its 9a band and its 297-day season. Your yard writes its own version of Martindale'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 Martindale’s own scale
6 of the readings below were taken at Martindale's own scale — the 1,320 acres it covers and 316 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Martindale's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 316 documented contamination sites on the federal record near Martindale, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Martindale's boundary and the 1,320 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~297-day seasonGrowable Ground crop-matching engine
- Martindale sits in the Texas Blackland Prairies — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- Lanternfly survey cells around Martindale checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- The 28°F hard-freeze dates — Martindale has no normal of its own, so its county's is the closest measured readfrom Caldwell County
- Soil character — no town-scale survey exists, so Martindale's 1,320 acres read through its county's SSURGO summaryfrom Caldwell County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Caldwell 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 Caldwell County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Martindale's 1,320 acreswhy one lot differs from the next →
- Which side of Martindale you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,320 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Martindale-wide figureread your own land →
More in Texas
Wider growing context
What grows across TexasMartindale sits outside our named growing regions, so Texas as a whole is its closest context here.
Nearby growing guides