• The Gardens at Heather Farm, hrrp://gardenshf.org.

  • The Ruth Bancroft Garden in Walnut Creek, www.ruthbancroftgarden.org.

  • San Francisco Flower & Garden Show, March 19 through 23, San Mateo Event Center, www.sfgardenshow.com.

  • Sunset Magazine, www.sunset.com.

  • "The Sunset Western Garden Book of Landscaping: The Complete Guide to Beautiful Paths, Patios, Plantings and More," (Oxmoor House, 416 pages, $29.95), www.sunset.com/wgb.

  • The University of California Botanical Garden at Berkeley, http://botanicalgarden.berkeley.edu,