SAN LEANDRO DAHLIA SOCIETY
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    • 2025 Dahlia shows
    • 2024 Dahlia Show
    • 2023 Dahla show
    • 2022 Dahlia Show
    • Digging and Dividing Tubers
    • 2021 Dahla Show
    • Dahlia Show 2020
    • Dahlia show 2019
    • DAHLIA SHOW 2018
    • Dahlia Show, 2017
    • Dahlia Show 2015
    • Dahlia Show 2014
    • Casa Peralta
    • Root Park Garden
    • Can we be water wise?
    • How do I grow beautiful dahlias?
    • Preparing the soil
    • How do I plant tubers?
    • Video lessons in dahlia growing
  • Join us!
  • Visit ADS
  • Fun Photos .. and not so fun photos
  • Potluck 2024
  • PSWD conference 2024
  • San Leandro cherry Festival 2024
  • Photos of 2025 meetings and doings
  • Garden at Lake Merritt July 2025
  • judging seminar 2025
  • BOARD MEETING
About the dahlia ...

The dahlia originated in Mexico and was used as a food - people ate the tubers like we eat potatoes.  The flowers were brought to Europe in 1530 by Spanish explorers and spread to Germany as well as English gardens before being imported to the U.S.  The explorers brought back different plants from different areas, creating a new game of hybridizing.  Although it came from Mexico, it was named after a Swedish botanist, A. Dahl.













Dahlias can be less than an inch in diameter (pompons) up to over 14 inches in diameter (AA - dinner plates).  There are over 2,000 cultivares (flowers) in about 20 forms, and all colors except blue.  

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Copyright © 2015
  • Home
  • Newsletters
  • About Us
    • Our Member's Gardens
    • Photos
    • Society photos
    • History of San Leandro Dahlia Society
    • Our Meetings
    • Junior Growers
  • Contact
  • Growing & Showing Dahlias
    • 2025 Dahlia shows
    • 2024 Dahlia Show
    • 2023 Dahla show
    • 2022 Dahlia Show
    • Digging and Dividing Tubers
    • 2021 Dahla Show
    • Dahlia Show 2020
    • Dahlia show 2019
    • DAHLIA SHOW 2018
    • Dahlia Show, 2017
    • Dahlia Show 2015
    • Dahlia Show 2014
    • Casa Peralta
    • Root Park Garden
    • Can we be water wise?
    • How do I grow beautiful dahlias?
    • Preparing the soil
    • How do I plant tubers?
    • Video lessons in dahlia growing
  • Join us!
  • Visit ADS
  • Fun Photos .. and not so fun photos
  • Potluck 2024
  • PSWD conference 2024
  • San Leandro cherry Festival 2024
  • Photos of 2025 meetings and doings
  • Garden at Lake Merritt July 2025
  • judging seminar 2025
  • BOARD MEETING