Reminds me of a meme I saw this morning:
Regarding Los Angeles and SoCal, people seem to think that there's no such things as aquifers and underground streams/rivers. Once tree roots hit a water table, you don't even really need to water it.
There are also native trees, of which the indigenous people knew/know how to cultivate. They were a food source after all, and if anyone knows about Los Angeles history, they would know about the towering 400 year-old sycamore tree that the native Tongva used to revere and hold meetings at, a tree that eventually met its demise in the late 1800s. The Spanish colonizers referred to the tree as El Aliso, from which the present-day Aliso Street in downtown LA gets its name.
Here are few samples of native SoCal trees, from
California Native Trees.
Arctostaphylos “Sentinel” showing off its winter flowers.
Sycamore.
Quercus agrifolia.
And here's the story of
El Aliso.