The Rocky Mountain Bonsai Society


The Rocky Mountain Bonsai Society (RMBS) is a plant society affiliated with the Denver Botanic Gardens. It was founded in 1975 with a lineage to the Denver Bonsai Club founded in 1945.   Please go to the website’s history tab for more information about the society’s unique past.

RMBS monthly meetings are typically on the first Tuesday of each month starting at 7:00 p.m. and held at the Denver Botanic Gardens’ Plant Society Building.  Non-Members are welcome at the monthly meetings.  Nine months of the year, members meet on the last Saturday of the month at various members’ homes / bonsai gardens.  Since 1973, on the Fathers’ Day weekend, RMBS has held a 3 day bonsai exhibition at the Denver Botanic Gardens to display some of its member’s best bonsai trees for the public’s enjoyment.

 * It is Rocky Mountain Bonsai Society's policy and practice not to collect native trees (Yamadori) without a permit from the U.S. Forest Service, The Bureau of Land Management or permission from a Land Owner.   



Takayama Park Landscaping and Clean-Up

Saturday, May 16th - 9:00 am to 12:00 pm
Colorado Bvld. and Cherry Creek Drive North

Please join  members from the Rocky Mountain Bonsai Society, Japan America Society of Colorado and Takayama Sister Citiy Committee to trim the Ponderosa Pine character trees and clean the landscaping within the park.

This is an annual event with these organizations as we work on this historic park that was dedicated in 1967.
Refreshments and expert guidance will be provided.  Bring gloves, sunscreen, a hat and a smile for the fun event!


One-Man Bonsai Show
Monday, May 18, 2015 to Monday, May 25th, 2015
9 a.m. to 8 p.m.
Denver Botanic Gardens - 1007 York Street
Bill Hosokawa Bonsai Pavilion
Master bonsai artist Charlie Sisk showcases over twelve of his best specimens at the third annual Spring One-Man Show in the Bill Hosokawa Bonsai Pavilion. He is recognized for his versatility in bonsai styles and his talent for drawing out beauty, balance and realism in his trees. Meet Sisk during an open house on May 19, 6-7:30 p.m. Included with admission.
46th Annual Show
There will be 80 plus bonsai trees representing numerous species, to include native species like the Rocky Mountain Juniper, Colorado Blue Spruce, Ponderosa Pine and rare species such as a Chinese Juniper (Shimpaku), New Mexico Privit, Alaskan Yellow Pine, etc.