Alamillo, New Mexico, sits in USDA hardiness zone 7b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
On paper, cabbage, prickly pear, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Alamillo, 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 Alamillo 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 Alamillo — soil, climate, flood, and parcel records. How we handle your address.
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Alamillo — the short answer
Alamillo, New Mexico: USDA zone 7b, about 219 days between hard freezes, across 768 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~219
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 768 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 7b is Alamillo's average, not your lot's — a low corner or a tree line moves it. Against Alamillo's 219-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Alamillo
Each reading below is measured for Alamillo itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAlamillo runs about 219 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
MeasuredAlamillo sits in USDA hardiness zone 7b.
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 Alamillo is in
Alamillo sits in the Chihuahuan Deserts — EPA Level III, inside the wider North American Deserts. That is read at Alamillo's own centroid rather than borrowed from Socorro County.
What Grows in Alamillo
Every plant below cleared Alamillo's own zone 7b and its 219-day season. Each card opens that plant's New Mexico profile. How we score.
Is it too late to plant in Alamillo?
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 Mar 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 29 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 3 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
Documented around Alamillo
Survey cells within 31 miles of Alamillo checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 496 miles off. What to watch for.
What's on the federal record near Alamillo
Closest first, within ~10 miles of Alamillo. Listing isn't leaking, and distance isn't exposure.
- US FISH AND WILDLIFE SAN ACACIAUnderground Storage Tanks · 0.5 mi
- 01S.01W.02.123Nitrate · 0.6 mi
- 01S.01W.01.124Nitrate · 1.0 mi
- 01N.01W.34.334Nitrate · 1.5 mi
- 01N.01W.36Nitrate · 1.9 mi
- Bachelder-Everheart ProspectMining · 2.3 mi
- 01S.01W.22.243Nitrate · 2.9 mi
- LATASA CONOCOUnderground Storage Tanks · 3.0 mi
- 01S.01W.23.300Nitrate · 3.1 mi
- 01S.01W.23.431Nitrate · 3.2 mi
- 03010122442ANitrate · 3.2 mi
- AMADOR COMPLETE RECYCLING, INC.Brownfields · 3.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Alamillo'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 Alamillo.
Sources Checked
within ~10 miles of Alamillo
Severity Distribution
within ~10 miles of Alamillo
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Alamillo, two things run higher than the national average within ~10 miles of Alamillo — Nitrate (74 sites) and Superfund (3 sites). That's not a problem with your land — it's information about it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Alamillo
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 Alamillo average
Your land is one point inside Alamillo
Everything above resolves to Alamillo as a whole — one PHZM band and one 28°F frost record, read across 768 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 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 Alamillo Average
Alamillo Average
- ●USDA Zones 7b, averaged across Alamillo
- ●One soil character for all of Alamillo
- ●Frost dates read at Alamillo's scale: Mar 29 to Nov 3
YOUR Parcel
- ✓Your exact zone, not Alamillo's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Alamillo
Pull a site-specific report for your exact address in Alamillo, New Mexico — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Alamillo averages can't show:
We read public map data around Alamillo — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Alamillo average
How we know this about Alamillo
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 Alamillo’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 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 Alamillo
When does frost risk typically end in Alamillo?
The last hard freeze (28°F) in Alamillo typically lands around Mar 29, 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 Apr 19.
When is the first frost in Alamillo?
The first hard freeze (28°F) in Alamillo typically arrives around Nov 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 20, so the watching starts about Oct 4 — about 219 days after the spring freeze cleared.
How long is the growing season in Alamillo?
Measured between 28°F hard freezes, Alamillo sees about 219 frost-free days — roughly Mar 29 through Nov 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 19 to Oct 20, about 184 days.
Is the soil safe to grow vegetables in Alamillo?
The federal record around Alamillo is a meaningful one — 92 documented sites, mostly Nitrate entries (74), the nearest Underground Storage Tanks record about 0.5 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 Alamillo?
From about Oct 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 Nov 3 (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 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Alamillo's scale — its 7b band and its 219-day season. Your yard writes its own version of Alamillo'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 Alamillo’s own scale
7 of the readings below were taken at Alamillo's own scale — its own ~219-day season between 28°F freezes, the 768 acres it covers and 92 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Alamillo's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Alamillo's own 28°F hard-freeze dates, about Mar 29 and Nov 3 and the ~219-day span between themNOAA 1991–2020 Climate Normals
- 92 documented contamination sites on the federal record near Alamillo, the closest Underground Storage Tanks record about 0.5 miles out from the town centreFederal environmental registers
- Alamillo's boundary and the 768 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~219-day seasonGrowable Ground crop-matching engine
- The ecoregion at Alamillo's own centroid, the Chihuahuan DesertsUS EPA Level III Ecoregions
- Lanternfly survey cells around Alamillo checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Alamillo's 768 acres read through its county's SSURGO summaryfrom Socorro County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Socorro County
- The growing challenges every New Mexico grower plans around — written at state scale, so they stay on the state guidefrom New Mexico
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Socorro County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Alamillo's 768 acreswhy one lot differs from the next →
- Which side of Alamillo you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 768 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.5 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 Alamillo-wide figureread your own land →
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