Thanks George, I think I'm leaning toward evergreens. The slender screens in which the general conical evergreen shape is maintained is something I find lovely. I may opt to do that - 'specially if I can find some 2-3 year old trees.
What are those usually? Hemlocks?

Reid, cholla, yucca, or cactus are out of the realm of possibility. Perhaps some blue agave!

Ann, I will take those pictures.

Cheers, Noel
no method, no guru, no teacher