San Diego Horticultural Society

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Meetings are on the second Monday of the month from 6 to 8:30 PM in the Surfside Race Place at the Del Mar Fairgrounds.

Meetings are free for SDHS members and $15 for non-members. Parking is free.

Meeting Directions



Upcoming events

    • Mon, August 11, 2014
    • 6:00 PM - 8:30 PM
    • Surfside Race Place at the Del Mar Fairgrounds

    Tom Piergrossi

    Creating Paradise Wherever You Live

    Tom Piergrossi, award-winning landscape designer and horticulturist with a passion for plants, particularly tropical, is owner of Kaloli Landscape in Kea’au. Located on the Big Island of Hawaii, he provides landscape design, installation and maintenance services. He is also owner of Vintage Green Farms, a wholesale and mail order nursery specializing in rare and unusual plants.


    When Tom moved to Hawaii in 2009, he left behind a much-admired San Diego garden and closed his Vista nursery, a mecca for plant lovers around the county. Now, after five years on the Big Island of Hawaii, he has created a new garden suited to the tropical climate of his new home. "The climate and plants might be different, but the principles remain the same any place you garden," he says. In his talk, Tom will draw on his new garden to illustrate basics of inspired, sustainable garden design and plant combinations. He also will introduce some new tropical plants suited to gardens here, available through his new mail order nursery,  Vintage Green Farms

    Tom studied Ornamental Horticulture at the University of Arizona, and after moving to San Diego, was mentored by Sinjen, a local landscape legend in Southern California and former SDHS Horticulturist of the Year, in the technique of lacing trees for sustainability and ornamental design. Tom was owner of Tom Piergrossi Landscape and Nursery in Vista, California for over 15 years, specializing in rare and unusual plants for our Mediterranean climate. He was host and co-producer of Down to Earth, an award-winning monthly gardening show that ran for five years on the local San Diego County television network. Tom has been a highly sought-after lecturer at home gardening seminars and gardening clubs.

    The presentation starts at 6:45

    Members free 
    Guests $15
    Parking free for everyone

    • Mon, September 08, 2014
    • 6:00 PM - 8:30 PM
    • Surfside Race Place at the Del Mar Fairgrounds

    Randy Baldwin

    New Australian Plants for California Gardens

    Randy Baldwin of San Marcos Growers tells us about Australian plants now available for California Gardens, including Banksia ericifolia 'Fireworks' (shown). 

    Randy Baldwin is a partner and General Manager of San Marcos Growers, a wholesale nursery in Santa Barbara known in the nursery industry for the diversity of plants that it grows and for the introduction of new plants suitable for cultivation in California.  Randy has worked for San Marcos Growers since 1981 and prior to this worked for a retail nursery while completing a BA in Environmental Studies at the University of California at Santa Barbara.  In his spare time Randy speaks to groups about his love of plants and maintains the web pages for the San Marcos Growers Horticultural web site.

    The presentation starts at 6:45

    Members free
    Guests $15
    Parking free for everyone

    • Mon, October 13, 2014
    • 6:00 PM - 8:30 PM
    • Surfside Race Place at the Del Mar Fairgrounds

    Landscape Designer Panel

    Lawn Replacement Ideas

    A panel of local landscape designers will discuss lawn replacement ideas. 

    Check back for more information.

    The presentation starts at 6:45

    Members free 
    Guests $15
    Parking free for everyone

    • Mon, November 10, 2014
    • 6:00 PM - 9:00 PM
    • Surfside Race Place at the Del Mar Fairgrounds

    November Meeting

    Holiday Marketplace


    Mingle and Shop the SDHS Holiday Marketplace with exhibits by SDHS sponsors, business members, horticultural vendors, botanic gardens, and other non-profits.  Shop for plants, garden related merchandise, gift memberships and horticultural services from leading businesses and vendors.


    Educational mini-demos with Horticultural Superstars

    More Reasons to Attend

    • Authors' corner where local authors will sell and sign their books
    • Get your holiday shopping done early
    • Consultations with local garden design professionals
    • Free giveways and discounts
    • Learn about horticulture related non-profits and  business in the San Diego area

    Members FREE 

    Guests FREE with preregistration guest pass or $5 at the door 

    Parking FREE for everyone

    To participate as an exhibitor at this event, reserve your spot online

    • Mon, December 08, 2014
    • 6:00 PM - 8:30 PM
    • Surfside Race Place at the Del Mar Fairgrounds

    Nancy Carol Carter

    Centennial Celebrations: Remembering and Commemorating the 1915 Panama-California Exposition

    Check back for more information.

    The presentation starts at 6:45

    Members free 
    Guests $15
    Parking free for everyone

Past events

Mon, July 14, 2014 July Meeting - Scent-sational Plumeria
Mon, June 09, 2014 June Meeting - Night at the Fair
Mon, May 12, 2014 May Meeting - Stuck on You! Indoor and Outdoor Projects with Succulents
Mon, April 14, 2014 April Meeting - Oaks of San Diego County
Mon, March 10, 2014 March Meeting - Tried and True or Brand New: Citrus in Today’s Gardens
Mon, February 10, 2014 February Meeting - The Wild World of Succulents
Mon, January 13, 2014 January Meeting - Native Plants of Chile
Mon, December 09, 2013 December Meeting - The Drunken Botanist
Mon, November 11, 2013 November Meeting - Holiday Marketplace
Mon, October 14, 2013 October Meeting - Trends in Contemporary Landscape Design
Mon, September 09, 2013 September Meeting - Right Plant for the Right Place
Mon, August 12, 2013 August Meeting - Drip is Hip
Mon, July 08, 2013 July Meeting - Succulents Simplified
Mon, June 24, 2013 June Meeting - Night at the Fair
Mon, May 13, 2013 May Meeting - Seriously Funny - The Business of Plants
Mon, April 08, 2013 April Meeting - Writing the Book on Natives
Mon, March 11, 2013 March Meeting - Growing on Air: Amazing Tillandsias
Mon, February 11, 2013 February Meeting - The Future of Roses in Today's Gardens
Mon, January 14, 2013 January Meeting - Exotic Bulbs for Southern California
Mon, December 10, 2012 December Meeting - Bring me Slow Flowers
Mon, November 12, 2012 November Meeting - The Edible Front Yard - Special Meeting!
Mon, October 08, 2012 October Meeting - A Californian's Guide to the Trees among Us
Mon, September 10, 2012 September Meeting - Welcome to Club Med
Mon, August 13, 2012 August Meeting - The Revolutionary Yardscape
Mon, July 09, 2012 July Meeting - Not Just for Show
Mon, June 11, 2012 June Meeting - Night at the Fair
Mon, May 14, 2012 May Meeting - Small is the New Big
Mon, April 09, 2012 April Meeting - Fitting CA Native Plants in CA-style Gardens
Mon, March 12, 2012 March Meeting - From Seed to Skillet
Mon, February 13, 2012 February Meeting - Trees of Ill Repute
Mon, January 09, 2012 January Meeting - A Rollicking Trip into the World of Cactus and Succulents


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 Our Mission

Promote the enjoyment, art, knowledge and public awareness of horticulture in the San Diego area, while providing the opportunity for education and research

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