What plant can I use that don't require watering in Sonoma county, Ca

http://sonomamg.ucanr.edu/Top_Plants_for_Sonoma_County/

CACTUS

Faux...or cacti

all live plants require watering. You need to find a drought resistant one. Not sure if you are looking for indoor or outdoor but what I would do is just google "drought resistant outdoor plants" etc etc

Any plant is going to require at least some watering. What look are you going for? Xeriscaping is very popular.

Any cacti, succulents, and sea grasses. What you want, I think, is a sere landscape, which is totally appropriate for Sonoma, California. Cover the ground around your plants with lots of pebbles and rocks so that moisture is held in the ground and won't evaporate easily. If you water at all, water the ground, not the plants. Best wishes, Judith 😇

I specifically searched for Desert Plants and was surprised by some of the 9 species listed! Some like the Desert Lily, the Desert sage and the Desert Marigold have lovely, colorful flowers! There are cacti, of course, and three trees: the Palm Tree, the Elephant Tree and the Desert Willow Tree. Quite a selection! I hope these extremely drought resistant plants and trees can inspire you! Good luck!! http://listovative.com/top-9-plants-commonly-found-deserts/