The Rocky Mountain Bonsai Society


The Rocky Mountain Bonsai Society (RMBS) was founded in 1975 and has a proud lineage to the Denver Bonsai Club which was founded in 1945.  RMBS is a Denver Botanic Gardens (DBG) affiliated plant society and a society member of both the American Bonsai Society and Bonsai Clubs International.  For more information about RMBS’ history please refer to the History of the Rocky Mountain Bonsai Society.
Monthly meetings are typically held on the first Tuesday of each month from 7:00 thru 9:00 pm and held at the Denver Botanic Gardens’ Plant Society Building.  All the monthly meetings are open to the public.   Nine months of the year, members meet on a Saturday of the month at DBG’s Bill Hosokawa Bonsai Pavilion.
Annually, RMBS has a Bonsai Show at the Denver Botanic Gardens to display some of its member’s best bonsai trees for the public’s enjoyment.


Bonsai Basics Course - June 3rd 
Saturday, June 3rd - 9:00am - 3:00pm
Charlie Sisk's Home
Cost is $35 and you must be a member of RMBS.  The course includes a juniper tree, a pot, soil, wire, bonsai basics book, access to tools and instruction.
The class size is limited to 8 participants so if you are interested please email Terril at
June's Monthly Meeting - June 6th
​Inspiration Tree - Adam Johnson
Yamadori Collecting with Bob Randall
Tuesday, June 6th - 7:00 - 9:00 pm
Denver Botanic Gardens
Plant Society Building
1007 York Street, Denver, CO  80206
Saturday Workshop - June 17th
Club Excursion to the Limber Pine Grove
Saturday, June 17th - 8:30am - 5:00pm
Members and Guests are to meet at Twin Forks' RTD Park and Ride
6164 US-285, Morrison, CO  80465
Visiting Artist Presentation - June 29th 
Bonsai Stands with Mr. Austin Heitzman
Thursday, June 29th​ - 7:30 - 9:30pm
Denver Botanic Gardens
Gates Hall
1077 York Street, Denver, CO  80206