http://www.ktvl.com/shared/news/top-stories/stories/ktvl_vid_18133.shtml

Californians have been ripping up their lawns in record numbers and many are
planting native, drought-tolerant plants instead -- including milkweed species
native to California that can thrive in arid conditions.

The female monarch butterfly will only lay her eggs on milkweed and a growing
number of drought gardeners are buying the plants to save water and monarchs at
the same time.