Gunilla and Michel Hamaoui, who live in Woodland Hills, sent me a photo of a tree whose identity they did not know. They also wanted to know how often it flowered. I did not know what kind of tree ...

The soaptree yucca, Yucca elata, is a slow-growing native plant that is well-worth waiting for. It is native to our region and the Chihuahuan desert, as well as northern Mexico. It’s very ...

What do a yucca tree, a tangerine tree and a hellebore have in common? Not much, really, except that, if you live in the San Fernando Valley, you can grow all three of them in your own backyard. Yucca ...