Ruth Bancroft

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Ruth Petersson Bancroft
Ruth Petersson

(1908-09-02)September 2, 1908
DiedNovember 26, 2017(2017-11-26) (aged 109)
EducationUC Berkeley (1932)
OccupationTeacher, gardener, landscape architect
Notable work
Ruth Bancroft Garden
Spouse(s)Philip Bancroft, Jr. (1939 until his death in 1983)

Ruth Petersson Bancroft (September 2, 1908 – November 26, 2017) was the creator of the Ruth Bancroft Garden in Walnut Creek, California.

A native of the Bay Area, Bancroft began the xeric garden in the 1950s on land originally purchased by Hubert Howe Bancroft, the grandfather of Ruth's husband, Philip Bancroft. The garden became the first in the United States to be preserved by The Garden Conservancy[1] and has been open to the public since 1992.[2][3]

Early life and education[edit]

Ruth Petersson was born to Swedish immigrants in Boston on September 2, 1908.[2][4] Her mother was a schoolteacher, and her father was a Latin professor.[5] While Petersson was a baby, her family moved to Berkeley, California, when her father took a job at the University of California, Berkeley.[2][5] The oldest of three children, Petersson had a younger sister and a younger brother, both born in California.[5]

As a child, she was an avid reader. Her favorite book was Sibylle von Olfers's Root Children,[2] a German children's book about anthropomorphized plant-children who bloom in spring and return to the earth in fall.[5] Fascinated by nature, she explored the undeveloped hills of Berkeley, examining wildflowers and digging up small plants to replant in her own backyard.[2] Her early garden included a collection of irises, which she received from Sydney B. Mitchell, the founder of the American Iris Association, and Carl Salbach, an iris breeder.[2]

In 1926, Petersson enrolled in UC Berkeley with a major in architecture, as one of two women students in the program.[2] Following the Wall Street Crash of 1929, she left the architecture track and graduated with a teaching certificate in 1932.[6] This career path offered greater job opportunities during a time when male architecture students struggled to find jobs and female architects were rare.[2] She taught home economics at a school in Merced for eight years.[2][3][7]

In the mid-1930s, Petersson met her future husband, Philip Bancroft, Jr. on a blind date.[2] Philip was the grandson of Hubert Howe Bancroft, a successful publisher whose book collection was purchased by UC Berkeley. The special collections library at UC Berkeley is known today as the Bancroft Library. Ruth Petersson and Philip Bancroft married on June 30, 1939.[2] Petersson, now Ruth Bancroft, moved with her husband to his family's farm in Walnut Creek.[2]

Bancroft began planting flowers in the beds surrounding the home.[5][2] Fascinated by succulents, she clipped articles about the drought-resistant plants but did not acquire her own until the 1950s, when she purchased a few hybrids at the estate sale of Glenn Davidson, a furniture seller and plant breeder. These succulents, named Aeonium 'Glenn Davidson', were the first dry plants in her collection.[2] Her collection expanded from Aeonium to include Agave, Aloe, Echeveria and cactus.[2] She grew her plants in pots, then transplanting them to mounds of soil around her home.

Bancroft, her husband, and their children moved into the main home on the Bancroft farm in about 1954, When Bancroft's father-in-law, Philip Bancroft, Sr., died in the 1950s, the Bancroft family moved into the main home on the Bancroft farm.

Ruth Bancroft Garden[edit]

Alyogyne 'Ruth Bancroft' hybrid, grown by and named after Ruth Bancroft

In the late 19th century, Bancroft's husband's grandfather, Hubert Howe Bancroft, had started a 400-acre fruit farm, which produced walnuts and Bartlett pears.[3] The farm operated until the late 1960s, when the land was rezoned for residential use and sold to developers.[3][8] The trees, sick with a fungal disease called blackline, were cut down, and the soil was dry and bare.[2] In 1971, Ruth Bancroft's husband, inherited three acres of empty land, which he gifted to his wife to expand her garden.[2][3] His requirement was that the plants use little water,[2] thus inspiring the xeric landscape that ultimately emerged.

Bancroft hired Lester Hawkins, a designer from Occidental in Sonoma County. He planned the central pond for the garden and added undulating mounds to break up the flat landscape.[2] In 1976, Bancroft added a "folly," an Art Nouveau gazebo.[2] She transplanted the best specimens of her succulent and cactus collection into the ground, using moss rock as planting beds.[2]

In 1972, an unusually cold winter destroyed most of Bancroft's garden. She began replanting, using custom wooden frames to protect tender plants from frost. Her first Aeonium 'Glenn Davidson' plant was among the plants to survive the freeze, and still grows in the garden today.[2][7]

As the garden grew, word spread among local designers and horticulturalists, who visited the garden to see which plants could survive the Walnut Creek climate. The garden became a field trip destination for plant identification for Diablo Valley College classes.[2] When Francis Cabot, a plant collector from Quebec, Canada, visited the garden, he asked Ruth what would happen to the garden after her death. Cabot's wife suggested establishing a nonprofit organization for garden preservation, and Cabot founded The Garden Conservancy in 1989.[1] The first garden it opened to the public was the Ruth Bancroft Garden,[1] which began tours in 1992 and officially became a nonprofit in 1994.[2]

Personal life[edit]

Bancroft had three children: Peter Bancroft, Nina Dickerson, and Kathy Hidalgo; and four grandchildren.[9] She lived in the main home on the Bancroft property, next door to her daughter.[7] Her husband, Philip, died in 1983.[9]

Bancroft died on November 26, 2017, nearly three months after celebrating her 109th birthday.[9][10]


  1. ^ a b c Raver, Anne (October 21, 1999). "HUMAN NATURE; The Keepers of the Garden's Soul". The New York Times. Retrieved June 21, 2017.
  2. ^ a b c d e f g h i j k l m n o p q r s t u v w x Silver, Johanna (2016). The Bold Dry Garden. Portland, Oregon: Timber Press. ISBN 9781604696707.
  3. ^ a b c d e "About: History". The Ruth Bancroft Garden. Retrieved June 18, 2017.
  4. ^ Herendeen, Lisa (August 20, 2015). "News Briefs: Ruth Bancroft's 107th birthday celebration". East Bay Times. East Bay. Retrieved June 18, 2017.
  5. ^ a b c d e Bancroft, Ruth (1991–1992). "The Ruth Bancroft Garden in Walnut Creek, California: Creation in 1971, and Conservation" (PDF) (Interview). Interviewed by Suzanne B. Riess. Berkeley, California: Regional Oral History Office, Bancroft Library, University of California, Berkeley. Retrieved June 18, 2017.
  6. ^ Olson, Donald (2017). The California Garden Tour: The 50 Best Gardens to Visit in the Golden State. Timber Press. ISBN 978-1604697223.
  7. ^ a b c Levathes, Louise (September 3, 2008). "Annuals, Perennials and a Centennial". The New York Times. Retrieved June 18, 2017.
  8. ^ Dickey, Page (September 22, 2015). Outstanding American Gardens: A Celebration: 25 Years of the Garden Conservancy. ISBN 978-1617691652.
  9. ^ a b c Kauffman, Jonathan (November 28, 2017). "Ruth Bancroft, California garden pioneer, dies at 109". San Francisco Chronicle. Retrieved December 27, 2017.
  10. ^ Brian, Cynthia (September 7, 2016). "Digging Deep: A Short Romp in the Ruth Bancroft Gardens". Lamorinda Weekly.

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