Here is a simple butterfly garden for California.

Plant these plants in a garden in most of California and water it once a week and something will grow and butterflies will show up. In some locations they made need a little extra water, in coastal California most will survive on their own after the first summer. I've not included the large bushes and trees as most of you do not have the room. If you want a list that includes those look here . These plants can survive, hopefully, that 'person' that aways seems to show up at community gardens and stay just long enough to kill half of same garden.