Bio: Native to the Canary Islands, they can grow to 60 feet tall and spread their canopies 30 feet across.
Who loves ‘em: Birds, which live in the canopies. Landscapers who’ve lavished them on Vegas pools, Beverly Hills streets, the east end of the new Bay Bridge, and San Francisco’s Embarcadero.
Biggest threat: A disease called fusarium wilt—spread by pruning tools—that’s killed some street trees in San Francisco and L.A. Victims are replaced with fusarium-resistant types such as Chilean wine palms. Pruning practices have since changed for the better.
Amazing fact: “The fibrous leaf bases hold moisture,” says San Francisco palm broker Jason Dewees, “so little gardens take root in them. I’ve seen tiny coast live oak and ferns up there.”