Tierra Amarilla, New Mexico, sits in USDA hardiness zone 5b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Reliable performers under these conditions include cabbage, cranberry, lavender, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Tierra Amarilla, 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 Tierra Amarilla 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 Tierra Amarilla — soil, climate, flood, and parcel records. How we handle your address.
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Tierra Amarilla — the short answer
Tierra Amarilla, New Mexico: USDA zone 5b, about 126 days between hard freezes, across 2K 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
- 2K 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 Tierra Amarilla's average, not your lot's — a low corner or a tree line moves it. Against Tierra Amarilla's 126-day season, see what your own ground reads.
Your town runs its own season
Tierra Amarilla'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 Tierra Amarilla'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 Tierra Amarilla
Each reading below is measured for Tierra Amarilla itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredTierra Amarilla 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
MeasuredTierra Amarilla 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 Tierra Amarilla is in
Tierra Amarilla sits in the Southern Rockies — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Tierra Amarilla's own centroid rather than borrowed from Rio Arriba County.
What Grows in Tierra Amarilla
Every plant below cleared Tierra Amarilla'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 Tierra Amarilla?
Almost never — the real question is what to plant next. 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. Even here the calendar’s edges hold value: thirty-day greens late in the window, then garlic and a rested bed for spring.
What's on the federal record near Tierra Amarilla
Closest first, within ~10 miles of Tierra Amarilla. Listing isn't leaking, and distance isn't exposure.
- 29N.04E.31.233Nitrate · 0.6 mi
- 29N.03E.24.433Nitrate · 1.4 mi
- STONE HOUSE LODGEUnderground Storage Tanks · 2.1 mi
- GANADOS DEL VALLEUnderground Storage Tanks · 2.1 mi
- HERON LAKE STOREUnderground Storage Tanks · 3.2 mi
- EL VADO DAMUnderground Storage Tanks · 5.0 mi
- OLD KOA KAMPGROUNDUnderground Storage Tanks · 6.3 mi
- OLD KOA KAMPGROUND .Underground Storage Tanks · 6.3 mi
Measured from Tierra Amarilla'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 Tierra Amarilla.
Total Sites
10
within ~10 miles of Tierra Amarilla
Risk Level
Low
Highest-severity
4 nitrate monitoring sites
Severity Distribution
within ~10 miles of Tierra Amarilla
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 Tierra Amarilla
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 Tierra Amarilla average
Your land is one point inside Tierra Amarilla
Everything above resolves to Tierra Amarilla 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 Tierra Amarilla Average
Tierra Amarilla Average
- ●USDA Zones 5b, averaged across Tierra Amarilla
- ●One soil character for all of Tierra Amarilla
- ●Frost dates read at Tierra Amarilla's scale: May 26 to Sep 29
YOUR Parcel
- ✓Your exact zone, not Tierra Amarilla's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Tierra Amarilla
Pull a site-specific report for your exact address in Tierra Amarilla, New Mexico — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Tierra Amarilla averages can't show:
We read public map data around Tierra Amarilla — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Tierra Amarilla average
How we know this about Tierra Amarilla
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 Tierra Amarilla’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 Tierra Amarilla
When does frost risk typically end in Tierra Amarilla?
The last hard freeze (28°F) in Tierra Amarilla 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 Tierra Amarilla?
The first hard freeze (28°F) in Tierra Amarilla 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 Tierra Amarilla?
Measured between 28°F hard freezes, Tierra Amarilla 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 Tierra Amarilla?
The federal record around Tierra Amarilla is light — 10 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (6), the nearest Nitrate record about 0.6 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 Tierra Amarilla?
With about 126 frost-free days between hard freezes, Tierra Amarilla 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 Tierra Amarilla's scale — its 5b band and its 126-day season. Your yard writes its own version of Tierra Amarilla'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 Tierra Amarilla’s own scale
6 of the readings below were taken at Tierra Amarilla's own scale — its own ~126-day season between 28°F freezes, the 1,720 acres it covers and 10 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Tierra Amarilla's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Tierra Amarilla's own 28°F hard-freeze dates, about May 26 and Sep 29 and the ~126-day span between themNOAA 1991–2020 Climate Normals
- 10 documented contamination sites on the federal record near Tierra Amarilla, the closest Nitrate record about 0.6 miles out from the town centreFederal environmental registers
- Tierra Amarilla's boundary and the 1,720 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 Tierra Amarilla's own centroid, the Southern RockiesUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Tierra Amarilla's 1,720 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 Tierra Amarilla's 1,720 acreswhy one lot differs from the next →
- Which side of Tierra Amarilla you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,720 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.6 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 Tierra Amarilla-wide figureread your own land →