Best trees for a San Diego school playground
I'm on the playground committee at my daughter's elementary school in Vista and I'm hoping to convince the district to let us plant more trees around the playground. What we're looking for is: drought tolerant (native is a plus), fast growing, not too messy, and I think that's it. I was thinking of Catalina ironwood. Any other suggestions? Evergreen oaks (acorns would be fun to play with)?
I'm not sure what irrigation will be like. It will be near a playing field, but I don't know how easy it would be to tap into their water. And my idea is to plant a small grove of trees to be a little forest-like, and then add in some playground musical equipment to make a music garden.