April 14, 2014 (Mt. Helix) -- On Saturday, May 17, from 10:30 am to 11:30 am, part two of Mt. Helix Park’s Nature/Sustainable Living lecture series will be held in the ampitheater atop Mt. Helix.This free, one-hour lecture on landscaping with California native plants will feature guest  speaker, Greg Rubin, President of California’s Own Native Landscape Design, Inc. and co-author of "The  California Native Landscape: The Homeowner's Guide to Restoring Its Beauty and Balance.”