Unlikely — Zone Mismatch
calathea (zones 11-12) does not overlap with New Mexico's zone range (5a-9a). Growing outdoors is unlikely without significant protection.
2 zones short — what would close it
Calathea is hardy to zone 11, and the warmest ground in New Mexico is zone 9 — 2 zones short. Planted in open ground it will not survive a New Mexico winter. To grow it here, grow calathea under glass — a greenhouse is the only lift this wide the engine models.
A greenhouse is the lift this needs. How a greenhouse changes what you can grow →
Zone math from 11-12 (plant) against 4-9 (New Mexico). Lift modeled by crop_engine Sprint 20B effective_zone_modifier (+2 zones) via api/fast_sections.py Unlock Engine v2.
Your yard isn't the whole zone.
New Mexico spans zones 5a-9a, but your yard sits in exactly one — and slope, tree cover, and cold-air pockets nudge it further. Enter your address and we'll score calathea against your parcel's actual hardiness, soil, and sun.
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Zone Comparison
Calathea Needs
- USDA Zones: 11-12
- Sun: Shade
- Mature size: 2.5 ft tall
- Drought tolerance: Low
New Mexico Has
- USDA Zones: 5a-9a
- Last Hard Freeze (28°F): Mar 31 - Apr 19
- First Hard Freeze (28°F): Oct 22 - Nov 9
- Annual Rainfall: 8-20 inches
- Common Soils: Sandy loam, Caliche, Adobe clay
Plant Zone Range (zones 11-12)
Preferred Soil pH
Plant data: USDA PLANTS Database / Growable Ground plant catalog. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant Calathea in New Mexico
The frost window
Across New Mexico, the last spring hard freeze (28°F) clears between Mar 31 and Apr 19, and the first fall hard freeze lands between Oct 22 and Nov 9 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 186-day window you can count on — up to 223 days on a mild site in a kind year. That marks the hard freeze, not the last light frost, so tender transplants usually wait another 2-3 weeks.
Winter standing
New Mexico runs as cold as USDA zone 5, and no sourced winter-hardiness floor is on record for calathea, so this page does not state whether it overwinters here — and gives no fall establishment date on the strength of a guess. Whether calathea is a permanent planting or a replant-every-spring crop for you turns on your own zone within New Mexico; check its hardiness range against that before treating it as long-lived ground.
Timing tuned to sub-state frost dates — Catron County, not the statewide average.
Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: USDA PLANTS Database. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.
Soil + Drainage Fit
Calathea likes near-neutral soil (pH 5.5-7). That's the common-ground band across New Mexico's sandy loam and caliche — a soil test confirms it for your site. It will grow across that whole span, but it does best between pH 6 and 6.5 — worth knowing before you decide whether a New Mexico soil test result is a problem or just a number. Drainage matters: this plant wants well (dry spells). If your New Mexico site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.
Your land, not the state average
New Mexico's soils run mostly loam, but SSURGO maps the series, texture, and drainage under your exact parcel. What matters for calathea is the horizon its roots actually work, not the surface. That map unit, not the state average, decides how calathea performs.
Check your parcel → Source: USDA NRCS SSURGO.
Plant pH and drainage requirements from USDA PLANTS Database. New Mexico soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
Calathea in New Mexico — Quick Answer
- Verdict: Unlikely — Zone Mismatch
- Plant Zones: 11-12 (USDA PLANTS Database)
- State Zones: 5a-9a (USDA ARS PHZM 2023)
- Growing Season: 28°F hard freezes about Mar 31 - Apr 19 to Oct 22 - Nov 9 (NOAA Regional Climate Centers ACIS, 1991-2020)
What Else to Consider for Calathea in New Mexico
Zone compatibility tells you about winter cold survival — but New Mexico growers also need to think about:
Very low rainfall requires irrigation for most crops
High altitude UV intensity can burn tender transplants
Alkaline soils limit plant selection without amendment
Growing calathea here specifically
New Mexico's soils run mostly loam (Aridisols), and whether that suits calathea's pH 5.5–7.0 preference comes down to your exact parcel, not the statewide picture.
Pull your parcel's SSURGO map unit, test pH, and amend toward calathea's 5.5–7.0 target before planting. How to handle it →
What to actually do about these — and the constraints that apply to every New Mexico grower, not just calathea — is covered on the New Mexico growing guide.
Timing shifts within New Mexico
New Mexico isn't one climate. In Catron County, the last hard freeze (28°F) holds until about May 22 — roughly 43 days later than the recorded state median — so plant calathea to your county's window, not the statewide date.
County last-freeze dates: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F freeze (earlier than the folk 32°F "last frost"). A parcel report resolves your address's own frost dates.
Where in New Mexico Calathea Is Zone-Hardy
Calathea is rated for USDA zones 11–12. No New Mexico county reaches it. Even Sierra County, the state’s mildest winter at zone 8b, sits below the plant’s zone 11 floor — so in open ground this one needs winter protection here, or a container that comes under cover.
Across those 33 counties New Mexico’s winter-low ladder runs from zone 5b in Taos County to zone 8b in Sierra County — 3 USDA zones of spread, which is 30°F between the two counties’ average coldest night of the year. None of that range reaches the band calathea needs, so here the statewide answer really is the answer.
County hardiness zones: USDA Plant Hardiness Zone Map (PHZM) 2023, per county. Calathea’s zone 11–12 band: USDA PLANTS / Growable Ground plant database. A parcel report resolves your address’s own zone and frost dates rather than its county’s.
New Mexico Cooperative Extension
For New Mexico-specific cultivar recommendations, planting calendars, and pest pressure for calathea, the canonical source is NMSU Cooperative Extension Service. Their fact sheets carry the local trial data we can't generalize across 50 states.
Is Calathea native to New Mexico?
No — the USDA PLANTS Database lists Calathea as introduced rather than native in the Lower 48, so it is not part of New Mexico's native flora. It grows here as a garden plant; pairing it with a few New Mexico natives keeps local pollinators fed too.
Looking for plants that belong here? The New Mexico growing guide lists USDA-documented natives for the state.
Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.
Common Questions About Growing Calathea in New Mexico
When can I plant Calathea in New Mexico?
New Mexico's last spring hard freeze (28°F) clears between Mar 31 and Apr 19, and the first fall hard freeze lands between Oct 22 and Nov 9 (NOAA Regional Climate Centers ACIS, 1991-2020). No sourced winter-hardiness floor is on record for Calathea, so this page does not state whether it overwinters in New Mexico and publishes no fall establishment date for it — check its hardiness range against your own zone before treating it as a permanent planting.
What hardiness zone is Calathea grown in across New Mexico?
New Mexico spans USDA hardiness zones 5a-9a (USDA ARS PHZM 2023). Calathea carries a range of zones 11-12, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical New Mexico site have?
A typical New Mexico site sees ~209 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). Calathea should be matched against that window, so check whether your local microclimate runs above or below the state average before settling on a planting date. In cooler counties like Catron, the freeze-free season runs shorter than the state average, so verify your own county's window.
Is Calathea native to New Mexico?
No — the USDA PLANTS Database lists Calathea as introduced rather than native in the Lower 48, so it is not part of New Mexico's native flora. It grows here as a garden plant; pairing it with a few New Mexico natives keeps local pollinators fed too.
How should I amend the soil for Calathea in New Mexico?
Calathea prefers pH 5.5-7 and well (dry spells) drainage (Growable Ground Plant Database). That sits in the common-ground band across New Mexico soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.
Will Calathea actually grow on my specific land in New Mexico?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores calathea against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.
Check your specific parcel in New Mexico
State-level data is a sketch. Your Growable Ground report scores calathea against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
Three things about your lot that New Mexico calathea averages can't show:
We read public map data around New Mexico — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the New Mexico calathea average
Analysis by the Growable Ground research team, grounded in USDA PLANTS, USDA NRCS SSURGO, NOAA Climate Normals (1991-2020), and named Cooperative Extension sources. How we know →
Cite this dataset
Kirchick, M. (2026). Growable Ground Plant Database [Data set]. Zenodo. https://doi.org/10.5281/zenodo.21435643
Licensed CC BY-NC 4.0. DOI 10.5281/zenodo.21435643
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