2027 Mammoth Auction & Sale Fundraiser
January 23 and 24, 2027
Mammoth Auction & Sale
Lakeside Park Garden Center • Lake Merritt • Oakland, California
The Mammoth Auction and Sale is a major fundraiser that helps sustain the Bonsai Garden at Lake Merritt, supporting the year-round care of the garden and its treasured bonsai and suiseki collections.
How to Participate
Individuals may contribute in two ways:
• Donations — donors may designate 10% to 100% of the sale price to benefit the garden.
• Consignments — the garden receives a 25% commission on all consigned items sold.
Both methods help sustain the garden’s mission and preserve its living collections for all to enjoy.
Auction Item Requirements
All auction submissions must be quality items, including:
• Bonsai Trees
• Ceramic Pots
• Wooden Display Stands
• Additional bonsai-related materials and accessories
Quality standards ensure bidders and buyers experience the important level of craftsmanship and horticultural excellence the Mammoth Auction & Sale is known for.
Event Highlights
• Live Auction featuring quality bonsai, pots, stands, and rare items.
• Bargain Sales offering excellent finds for beginners and seasoned collectors.
• Quality Bonsai Vendors selling bonsai, tools, soil mixes, and many more.
The Bonsai Garden at Lake Merritt is one of the finest public bonsai collections in the United States, maintained entirely by volunteers and supported through donations and fundraising events such as the Mammoth Auction & Sale. The Garden is dedicated to preserving the art of bonsai and suiseki while providing education and inspiration to visitors of all ages.
Bonsai Garden at Lake Merritt, Lakeside Park, Oakland, California Email: info@bonsailakemerritt.com
For current official procedures, click on the Official Procedures button.
