Sandy Oaks, Texas, sits in USDA hardiness zone 9a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
The conditions favor artichoke, fig, california poppy, and cabbage, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Sandy Oaks, 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 Sandy Oaks 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 Sandy Oaks — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Sandy Oaks — the short answer
Sandy Oaks, Texas: USDA zone 9a, about 306 days between hard freezes, across 2K acres of city.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 6
- Bexar County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 9
- Bexar County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~306
- Bexar County normal — NOAA 1991–2020, nearest to this town
- City area
- 2K 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 Bexar County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Sandy Oaks's average, not your lot's — a low corner or a tree line moves it. Against Sandy Oaks's 306-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Sandy Oaks
Each reading below is measured for Sandy Oaks itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsSandy Oaks runs about 306 days between hard freezes (read from Bexar County, the closest normal to Sandy Oaks) — 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
MeasuredSandy Oaks 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 Sandy Oaks is in
Sandy Oaks sits in the East Central Texas Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Sandy Oaks's own centroid, and it is not what its county reads: Bexar County is mostly Texas Blackland Prairies. The wider page above you is answering a different question about different ground.
What Grows in Sandy Oaks
Every plant below cleared Sandy Oaks's own zone 9a and its 306-day season. Each card opens that plant's Texas profile. How we score.
Is it too late to plant in Sandy Oaks?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Jan 9; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 6 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 9 — long-season crops need about 90 days of runway, quick greens only 30. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.
Documented around Sandy Oaks
Survey cells within 31 miles of Sandy Oaks checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 664 miles off. What to watch for.
What's on the federal record near Sandy Oaks
Closest first, within ~10 miles of Sandy Oaks. Listing isn't leaking, and distance isn't exposure.
- SUPER EXPRESS STOREUnderground Storage Tanks · 0.9 mi
- ELMENDORF TERMINALBrownfields · 2.0 mi
- SAN MARTIN PLANTToxics Release Inventory · 2.1 mi
- LUBRIZOL OILFIELD CHEMISTRYBrownfields · 2.1 mi
- LUBRIZOL OILFIELD CHEMISTRYToxics Release Inventory · 2.1 mi
- WEATHERFORD RESEARCH & DEVELOPMENTBrownfields · 2.2 mi
- CLEARWATER INTL L L CToxics Release Inventory · 2.2 mi
- LUBRIZOL ELMENDORFToxics Release Inventory · 2.2 mi
- EZ MART 4392Underground Storage Tanks · 2.5 mi
- PILOT TRAVEL CENTER 467Underground Storage Tanks · 2.6 mi
- TEX BEST TRAVEL CENTER 501Underground Storage Tanks · 2.6 mi
- ANDRES PEREZUnderground Storage Tanks · 2.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Sandy Oaks'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 Sandy Oaks.
Total Sites
121
within ~10 miles of Sandy Oaks
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Sandy Oaks
Severity Distribution
within ~10 miles of Sandy Oaks
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Sandy Oaks, Toxics Release Inventory runs higher than the national average — 18 sites within ~10 miles of Sandy Oaks. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Sandy Oaks
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 Sandy Oaks average
Your land is one point inside Sandy Oaks
Everything above resolves to Sandy Oaks as a whole — one PHZM band, read across 2K acres, with hard-freeze dates borrowed from Bexar 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 Sandy Oaks Average
Sandy Oaks Average
- ●USDA Zones 9a, averaged across Sandy Oaks
- ●One soil character for all of Sandy Oaks
- ●Frost dates read at Sandy Oaks's scale: Feb 6 to Dec 9
YOUR Parcel
- ✓Your exact zone, not Sandy Oaks's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Sandy Oaks
Pull a site-specific report for your exact address in Sandy Oaks, Texas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Sandy Oaks averages can't show:
We read public map data around Sandy Oaks — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Sandy Oaks average
How we know this about Sandy Oaks
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 Bexar 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 Sandy Oaks
When does frost risk typically end in Sandy Oaks?
The last hard freeze (28°F) in Sandy Oaks typically lands around Feb 6, 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 Feb 27.
When is the first frost in Sandy Oaks?
The first hard freeze (28°F) in Sandy Oaks typically arrives around Dec 9, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 25, so the watching starts about Nov 9 — about 306 days after the spring freeze cleared.
How long is the growing season in Sandy Oaks?
Measured between 28°F hard freezes, Sandy Oaks sees about 306 frost-free days — roughly Feb 6 through Dec 9, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 27 to Nov 25, about 271 days.
Is the soil safe to grow vegetables in Sandy Oaks?
The federal record around Sandy Oaks is a meaningful one — 121 documented sites, mostly Underground Storage Tanks entries (45), the nearest Underground Storage Tanks record about 0.9 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 Sandy Oaks?
From about Nov 9 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 9 (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 9. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Sandy Oaks's scale — its 9a band and its 306-day season. Your yard writes its own version of Sandy Oaks'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 Sandy Oaks’s own scale
6 of the readings below were taken at Sandy Oaks's own scale — the 1,526 acres it covers and 121 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Sandy Oaks's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 121 documented contamination sites on the federal record near Sandy Oaks, the closest Underground Storage Tanks record about 0.9 miles out from the town centreFederal environmental registers
- Sandy Oaks's boundary and the 1,526 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~306-day seasonGrowable Ground crop-matching engine
- Sandy Oaks sits in the East Central Texas Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- Lanternfly survey cells around Sandy Oaks checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- The 28°F hard-freeze dates — Sandy Oaks has no normal of its own, so its county's is the closest measured readfrom Bexar County
- Soil character — no town-scale survey exists, so Sandy Oaks's 1,526 acres read through its county's SSURGO summaryfrom Bexar County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Bexar 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 Bexar County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Sandy Oaks's 1,526 acreswhy one lot differs from the next →
- Which side of Sandy Oaks you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,526 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.9 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 Sandy Oaks-wide figureread your own land →
More in Texas
Wider growing context
What grows across TexasSandy Oaks sits outside our named growing regions, so Texas as a whole is its closest context here.
Nearby growing guides