Los Ojos, New Mexico, sits in USDA hardiness zone 5b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
These conditions suit cabbage, cranberry, lavender, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Los Ojos, 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 Los Ojos 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 Los Ojos — soil, climate, flood, and parcel records. How we handle your address.
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Los Ojos — the short answer
Los Ojos, New Mexico: USDA zone 5b, about 126 days between hard freezes, across 891 acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~126
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 891 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 5b is Los Ojos's average, not your lot's — a low corner or a tree line moves it. Against Los Ojos's 126-day season, see what your own ground reads.
Your town runs its own season
Los Ojos's own 30-year record measures about 126 days between 28°F killing freezes — 33 days shorter than Rio Arriba County's ~159. Both are measured records, not estimates.
That gap is the whole reason a county average can mislead here. Plant against Los Ojos's ~126-day season rather than the county figure — and the sun, slope and cold-air drainage on your specific lot move it again.
NOAA Regional Climate Centers ACIS (1991–2020), 30-year daily minimum record. Both figures are measured records — this town’s own and its county’s. A town with no record of its own is absent here rather than estimated.
Soil varies lot by lot — soil types explained.
What this means for growing in Los Ojos
Each reading below is measured for Los Ojos itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLos Ojos runs about 126 days between hard freezes — a short growing season.
Long-maturing crops like melons, sweet potatoes, and winter squash can run out of runway before the first hard freeze, ripening late or not at all.
Lead with fast-maturing varieties, and stretch the season on both ends with cold frames, low tunnels, or a greenhouse.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredLos Ojos sits in USDA hardiness zone 5b.
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 Los Ojos is in
Los Ojos sits in the Southern Rockies — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Los Ojos's own centroid rather than borrowed from Rio Arriba County.
What Grows in Los Ojos
Every plant below cleared Los Ojos's own zone 5b and its 126-day season. Each card opens that plant's New Mexico profile. How we score.
Is it too late to plant in Los Ojos?
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 Apr 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 26 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 29 — long-season crops need about 90 days of runway, quick greens only 30. Short seasons reward decisiveness — quick-maturing varieties late, hardy greens under cover, and next year’s garlic in the ground before it closes.
What's on the federal record near Los Ojos
Closest first, within ~10 miles of Los Ojos. Listing isn't leaking, and distance isn't exposure.
- GANADOS DEL VALLEUnderground Storage Tanks · 2000 ft
- STONE HOUSE LODGEUnderground Storage Tanks · 2000 ft
- 29N.03E.24.433Nitrate · 1.0 mi
- 29N.04E.31.233Nitrate · 2.6 mi
- HERON LAKE STOREUnderground Storage Tanks · 4.2 mi
- EL VADO DAMUnderground Storage Tanks · 6.8 mi
- OLD KOA KAMPGROUNDUnderground Storage Tanks · 8.0 mi
- OLD KOA KAMPGROUND .Underground Storage Tanks · 8.0 mi
- NMDOT CHAMA PATROL YARD 45 61Underground Storage Tanks · 9.5 mi
Measured from Los Ojos'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 Los Ojos.
Severity Distribution
within ~10 miles of Los Ojos
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Los Ojos
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 Los Ojos average
Your land is one point inside Los Ojos
Everything above resolves to Los Ojos as a whole — and this is a town whose own 30-year record already runs a season its county’s does not. Your parcel sits at one point inside even that. 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 Los Ojos Average
Los Ojos Average
- ●USDA Zones 5b, averaged across Los Ojos
- ●One soil character for all of Los Ojos
- ●Frost dates read at Los Ojos's scale: May 26 to Sep 29
YOUR Parcel
- ✓Your exact zone, not Los Ojos's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Los Ojos
Pull a site-specific report for your exact address in Los Ojos, New Mexico — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Los Ojos averages can't show:
We read public map data around Los Ojos — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Los Ojos average
How we know this about Los Ojos
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 Los Ojos’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 Los Ojos
When does frost risk typically end in Los Ojos?
The last hard freeze (28°F) in Los Ojos typically lands around May 26, 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 Jun 16.
When is the first frost in Los Ojos?
The first hard freeze (28°F) in Los Ojos typically arrives around Sep 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 15, so the watching starts about Aug 30 — about 126 days after the spring freeze cleared.
How long is the growing season in Los Ojos?
Measured between 28°F hard freezes, Los Ojos sees about 126 frost-free days — roughly May 26 through Sep 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 16 to Sep 15, about 91 days.
Is the soil safe to grow vegetables in Los Ojos?
The federal record around Los Ojos is light — 11 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (7), the nearest Underground Storage Tanks record about 0.4 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 gardeners stretch the season in Los Ojos?
With about 126 frost-free days between hard freezes, Los Ojos rewards the classic extension moves: floating row cover buys roughly two to four extra weeks at each shoulder — on this season that is a working window nearer 154 to 182 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 26 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Los Ojos's scale — its 5b band and its 126-day season. Your yard writes its own version of Los Ojos'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 Los Ojos’s own scale
6 of the readings below were taken at Los Ojos's own scale — its own ~126-day season between 28°F freezes, the 891 acres it covers and 11 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Los Ojos's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Los Ojos's own 28°F hard-freeze dates, about May 26 and Sep 29 and the ~126-day span between themNOAA 1991–2020 Climate Normals
- 11 documented contamination sites on the federal record near Los Ojos, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Los Ojos's boundary and the 891 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~126-day seasonGrowable Ground crop-matching engine
- The ecoregion at Los Ojos's own centroid, the Southern RockiesUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Los Ojos's 891 acres read through its county's SSURGO summaryfrom Rio Arriba County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Rio Arriba 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 Rio Arriba County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Los Ojos's 891 acreswhy one lot differs from the next →
- Which side of Los Ojos you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 891 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Los Ojos-wide figureread your own land →