In my area it is plumerias - I heard about a $1200 small, valuable palm tree that was stolen - planted that day, gone overnight.
My sister-in-law said they steal fountains out of front yards in her area.
Oh my! I must live in a bubble! I’ve heard of pets and catalytic converters being stolen. I’ve never heard of plants or fountains. People are nuts and also evil. It makes no sense to me.