I don't know what part of the Vallry you live in but there is a desert nursery(I think its Arid Solutions or next to Arid Solutions) on Southern and around 28th st on the South side on southern. There are also a couple of nurseries on 26th st south of Southern. I don't have names but there are several nurseries in that area.
Moon valley nursery
Thanks! Your answer is awaiting moderation.