When the first real rain of autumn arrives, it takes only a couple of weeks for the bare foothills above Alum Rock Park to blush green, as if someone flipped a switch along San Jose's eastern edge. E&E Landscaping Inc. cares for the city's lawns through that turn of the year, when cooler nights and wet mornings wake up grass that spent the summer just getting by. It is the season for clearing fallen leaves, for tightening up edges that wandered in the heat, and for readying yards for the storms ahead. There is a hopeful feeling in a lawn that greens again right on cue. On a clear morning after rain, with the air scrubbed and the ridgeline sharp, a freshly cut yard looks like it has been handed a second spring.