Dahlia Dell at Golden Gate Park

A large group of people gathered around colorful dahlia flowers at the Dahlia Dell in Golden Gate Park.

Visit the Dell

Dahlias primarily bloom in summer, each plant with it’s own timeline for growth. With over 700 plants, the Dahlia Dell has brand new blooms for months. This means every visit will offer a unique experience. Time of day, sunshine (or foggy skies) also create different experiences for viewing the flowers.

In San Francisco, our peak blooming season runs June through October (the height is usually around August or September), though flowers can appear as early as May and as late as November.

Colorful garden of blooming dahlias behind a black metal fence.

Peak bloom season: June through October

Map showing Conservatory of Flowers and surrounding pathways in Golden Gate Park, with a marked location at Dahlia Dell and nearby amenities like restrooms and a parking area.
Map showing Conservatory of Flowers and surrounding pathways in Golden Gate Park, with a marked location at Dahlia Dell and nearby amenities like restrooms and a parking area.

Location

The Dahlia Dell is located in Golden Gate park just east of the Conservatory of Flowers.

Easily accessible by foot, bicycle, and the free Golden Gate Park shuttle.

Parking: JFK is closed to traffic. The closest parking is by Nancy Pelosi Dr. and Bowling Green Dr., Conservatory Dr. West, and outside the park on Fulton St. by Arguello Blvd.

Two people, a Erik Gaensler and Deborah Dietz, are standing in a garden filled with pink, orange, and yellow dahlia flowers. Both are smiling and wearing  t-shirt that says 'California' and references dahlia shows.

A Volunteer-Run Garden

Though within Golden Gate Park (run by SF Recreation & Parks) the Dahlia Dell is run and maintained solely by the Dahlia Society of California. Our dedicated members have volunteered not only their time and labor, but also plants and gardening supplies to keep the garden thriving.

The primary “teardrop” space and “hillside” are divided into plots, each overseen by a different society member. DSC members volunteer and apprentice with our expert gardeners.

History of the Dahlia Dell

A black and white historical photo of a large group of people on horses, arranged in a line in front of a garden, with trees and a field behind them.

Dahlias have had a dedicated plot near the Conservatory of Flowers since the mid 1920’s.

In the 1980s, Roy Takeuchi grew dahlias in both the oval and on the hillside. While Roy’s father hybridized many kinds of vegetables, Roy focused on dahlias and grew them commercially.

When Roy became ill in the early 1990s, Erik Gaensler began planting in the Dell. Deborah Dietz joined him the following year on the hillside. Two years later, Erik and Gerda Juul became involved, followed the next year by Lou Paradise. In 2012, Pat Hunter took over from the Juuls. Today, Tinnee Lee, Sue Glazer, and Nicholas Gaensler grow on the hillside, while Pat Hunter, Lou Paradise, and Deborah Dietz grow in the teardrop.

As dahlia enthusiasts around the world became more connected through the internet, the exchange of tubers expanded widely. Over the years, the Dell has welcomed varieties from South Africa, New Zealand, Australia, England, Holland, Austria, Japan, and Mexico. The Juuls and Lou Paradise are also respected hybridizers in their own right.

Beginning in 2004, an irrigation system was installed in part of the Dell. It helps save time and labor while also conserving water. The overseers of each area donate all of the tubers, and volunteers help with planting, disbudding, leaf removal, pinching, pest care, watering, deadheading, and digging up approximately 500 clumps of dahlias each year.

For more about the Dahlia Dell, visit our sister site dahliadell.org

An elderly man in a beige jacket stands among pink, orange, and white flowers in a botanical dahlia garden, with a glass conservatory and tall palm trees in the background.
An elderly man in a beige jacket stands among pink, orange, and white flowers in a botanical dahlia garden, with a glass conservatory and tall palm trees in the background.

Erik Juul in his section of the teardrop.

An elderly woman and a young girl standing in a flower garden with a greenhouse in the background. The woman is wearing a red hat and purple shirt, smiling, while the girl is wearing a baseball cap and overalls, also smiling.

Deborah Dietz mentoring junior DSC member Abby.

Information board about the Dahlia Garden, with illustrations of dahlias, placed outdoors with soil and some plants visible around.

Do you have photos of the Dell?

Email them to Sarah, and let us know if you’d like to be featured.

Close-up of a peach-colored flower with yellow center, with two bees collecting nectar.
A garden with colorful blooming flowers in front of a glass conservatory or greenhouse.
Close-up of a large, vibrant peach and pink dahlia flower in a garden. In the background, a woman wearing a sunhat and white shirt is walking among more flowers, with trees and a clear blue sky above.

Dahlia Dell in the Press

Kickstarter Cristina Carrizosa Dahlia Book

Kickstarter for “DAHLIA”:
Support the upcoming book launch

DAHLIA is a hardcover photobook exploring the flowers of Golden Gate Park’s Dahlia Dell through color, form, and abstraction. Created over months of close observation, it reflects both the blooms and the community that cares for them.

By, Cristina Carrizosa (DSC member and Dell volunteer)

A musical moment at the Dahlia Dell