Agave neomexicana Wooton & Standl.
New Mexico Agave
Agave neomexicana is the most representative agave species of the northern Chihuahuan Desert. It forms symmetric compact rosettes on rocky slopes, desert grasslands, and bunch-grass prairies at elevations of 1400–2300 m. Its tolerance of the severe winter frosts of the Chihuahuan region distinguishes it from most agaves and makes it an outstanding choice for cold dry-climate gardens. Mescalero and Jicarilla Apache peoples used its roasted hearts as subsistence food.
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Overview
| Category | Classification |
|---|---|
| Family | Asparagaceae |
| Genus | Agave |
| Growth Habit | Globose compact rosette, typically solitary though may produce a few offsets. Slow-growing; flowers at 15–20 years. The spicate inflorescence reaches 3–5 m in height. |
| Conservation Status | Least Concern (IUCN) globally, though locally impacted by livestock herbivory and illegal collection. Chihuahua populations are more vulnerable due to habitat fragmentation. |
| pH Target | 6.5–8.5 |
| Type | Calcareous or igneous rocky soil, very well-draining, neutral to alkaline pH |
Origin & Habitat
Morphology
Lanceolate to ovate-lanceolate, 30–65 cm long and 6–12 cm wide, blue-green to grey-green with bud-printing impressions; margins with horny teeth 5–12 mm, chestnut-brown; conical hard terminal spine 2.5–5 cm.
ecoYellowish-green to reddish in bud, 5–7 cm long, in a dense spicate spike with umbels of 15–20 flowers; the inflorescence attracts nocturnal pollinators such as Leptonycteris bats.
ecoShort globose caudex, well-defined, 15–30 cm in diameter; stores water and nutrients to sustain the monocarpic flowering.
ecoFibrous shallow root system of wide lateral extent; adapted to calcareous rocky soils with low water retention.
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Requirements
Soil & Substrate
Type
Calcareous or igneous rocky soil, very well-draining, neutral to alkaline pH
groups Beneficial Associations
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Propagation Strategy
S
A
Every 4–5 years; transplant in spring when soil reaches at least 10 °C
Very moderate fertilization: half-dose of balanced mineral fertilizer (10-10-10) in May; avoid late fertilizations that stimulate growth before frost
Uses & Applications
Precautions / Toxicity
Very low toxicity; sap may irritate sensitive skin. Terminal spines are the only real physical hazard.
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Plant Health
Crown rot (Helminthosporium spp.) in wet winters or with snow accumulated on the rosette
Mealybug (Pseudococcus spp.) under water-stress conditions in cultivation
Agave snout weevil (Scyphophorus acupunctatus): less frequent at high elevations but possible in low-elevation collections
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"A. neomexicana is the best candidate of the genus for high-elevation and cold continental dry-climate gardens. Its combination of compact blue-grey rosette and tolerance to –18 °C without protection is unique among agaves cultivated in Europe and northern North America."
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Scientific Integrity
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Sources
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Discussion
Disclaimer
This species record is provided for educational and informational purposes only. Jardín Roca Negra does not guarantee the accuracy or completeness of the data. Content is community-curated and may be subject to revision; it should not replace advice from a qualified botanist. This species may be toxic, invasive, or subject to legal restrictions — verify before handling or cultivating. Jardín Roca Negra accepts no liability for any harm arising from reliance on this information. Images are reproduced under Creative Commons or equivalent free licenses; credits are noted below each image.