sally taylor lives in the shadow of mt. tamalpais. she can identify the types of birds and hawks that fly by and point out the native plants that grow on her five acres. >> the drones i love. they've all come up in recent years. and that to me is a tremendous compliment, because madrones don't like people and houses. so if a madrone grows, you feel like you're doing things right. >> she spends much of her free time in her garden as her mother once did. >> my mother who had a house on this same ridge and who came from the east, was determined to put an eastern garden on a california hillside and she did so. so we had three lawns, two of which were very large indeed. >> but with no end in sight to the drought taylor is breaking with tradition. she's gotten rid of her lawn. like many californians, lawns themselves were east coast transplants. >> this is levittown, pennsylvania a new suburban community. >> after world war ii, when home ownership became a symbol of middle class achievement, lawns were a key feature in new housing developme