Community Service

Member, Board of Directors, Capay Valley Growers (Farm Cooperative)
May 2006 – present

Member, Advisory Committee, Design & Horticulture for Santa Barbara Botanic Garden
January 1999 to present

Member, Advisory Council, Life Garden, Walnut Creek
January 1999 to present

Member, Plant Collection Committee, Strybing Arboretum Society of Golden Gate Park
January 1990 to present

Member, Board of Directors, The Ruth Bancroft Gardens, Inc.
1993 to January 1997

Jury Chair, National Competition for Longwood Gardens, Kennett Square, Pennsylvania
January 1995

Member, Horticultural Council to the Jepson Manual, a New Flora for California
1993

Judge, San Francisco Landscape Garden Show
April 1990

Reviewer/editor for Planting Design Guidelines for Water Conservation in Contra Costa and Alameda Counties, East Bay Municipal Utility District
1988

Committee member, Northern California Xeriscape Conference sponsored by the East Bay Municipal Utility District
November 1986

Reviewer/editor for Water Conserving Plants and Landscapes for the Bay Area, East Bay Municipal Utility District
1986