A November trip to El Paso, Alamito Gardens is a public housing project that I designed in 2008 for Moore Nordell Kroeger Architects:
Chinquapin Oak turned, the clean evergreen foliage of Pale Yucca / Yucca rupicola pulling off the cool season look.
This would not work with feathery, deciduous grays. Imagine gray twigs all winter? Reality over flowery prose - like "tapestries of colors", then stating how "our area is brown", commonly used to justify design and plant choices missing the mark of a space's needs.
Blue Sotol AKA Gray Sotol / Dasylirion wheeleri:
1) low budget, installation to maintenance
2) colored walls (notably red), native stone
3) evergreen in prominent locations
4) mature plant sizes considered for their spaces
5) microclimate - prairie yuccas E walls, desert sotols W walls
6) natives where they work, adapteds where natives don't work
7) bold foliage against random stone patterns
8) spiny leaf margins against a contrasting color
9) flowering lantanas
10) massings of the same plant species, to unify