Twenty-five years ago, the BGLM opened its gates to the public on November 6, 1999, by hosting a Grand Opening celebration of bonsai and suiseki, held on site at the Gardens of Lake Merritt and Lakeside Park Garden Center. Dennis Makishima was master of ceremonies for the grand opening, including then Mayor Jerry Brown, the Consul General of Japan in San Francisco, John Naka, Harry Hirao and other Japanese American notable bonsai artists, Yasuo Mitsuya of Japan, Recreation and Parks Officials, and many more. In addition to the ribbon cutting, there was a lively celebration inside the Lakeside Park Garden Center; all well attended. The San Jose Taiko drum performers were present.

On November 9th, 2024, BGLM would like to recognize the first 25 years by holding a smaller in scale celebration. Oakland City officials from District 3 and Parks & Recreation, Friends of the Gardens at Lake Merritt, the General Counsel of Japan in San Francisco, Japanese American communities, and the general public are invited to attend. Free admission. Public parking available.