The Rocky Mountain Bonsai Society

Welcome and thank you for visiting our website!

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 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.  Please go to the calendar tab for more information. 

Upcoming 2014 Events

Saturday, May 3rd | 9:00am - 12:00pm

Saturday Morning Bonsai Study Group at a RMBS Member's Garden

Patrick Allen's Home (140 South Locust Street, Denver, CO  80224)  Phone:  (303) 905-6544


Please bring a tree to work on and share in the RMBS' camaraderie, expertise and friendship.   Patrick has asked that Charlie Sisk help him repot a 150 year old collected Ponderosa Pine into a Tokoname Bonsai Pot.  Some of the techniques that Michael Hagedorn showed during his visiting artist workshop using bamboo to anchor the roots will be used.

May Monthly Meeting

Tuesday,  May 6th


Tuesday, May 6th | 7:00pm to 9:00pm

Denver Botanic Gardens' Plant Society Building | 1007 York Street, Denver, CO  80206

Panel Discussion - "Getting Your Trees Ready for Annual Show"

with some of RMBS most experienced members

Larry Jackel, Alan Hills, Paul Gilbert and Les Siroky



Rocky Mountain BONSAI Society

2014 Bonsai Show and Exhibition

Denver Botanic Gardens

1005 York Street, Denver, Colorado

Saturday June 7, 9 am to 5 pm

  Sunday June 8, 9 am to 3 pm


Exhibit and Demonstration Classes included free with the normal admission to the Denver Botanic Gardens