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 for a Saturday workshop.  Most of the workshops are either at the Bill Hosokawa Bonsai Pavilion, or the Plant Society Building. Please check this link for more information on Bill Hosokawa's life and his numerous contributions. 
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.
2018 Programs, Monthly Meetings, Workshops, and Events
Saturday Workshop - April 21st
Saturday, April 21st - 9:00 AM - 2:00 PM
RMBS Member's Home (Adam Johnson)
701 75th Street, Boulder, CO  80303 | Map
Outdoor Workshop
Repotting Worshop & Pot Sale  The workshop will be held in Adam Johnson's spacious backyard and a gorgeous view of the Colorado Flatiron rock formations.
There are tables and chairs available for work stations.  Members are encouraged to bring trees that they have scheduled for repotting and all of the necessary tools and equipment to conduct the repotting.
Bonsai Tree; Bonsai Pot; Bonsai Soil; Bonsai Pot Drainage Screens; Steele Wire; Aluminum​ Wire; Repotting Tools; Spray Bottle.  Don't worry if you forget something.  You can always borrow from another member.
Nursery Stock Excursion - April 28th
Led by licensed arborist and RMBS Member
Darell Havener
Please note time change  ► Saturday, April 28th - 1:00 - 3:00PM
Alameda Wholesale Nursery
1950 W. Dartmouth Ave; Englewood, CO  80110 | Map
Program: How to Choose Nursery Stock
This is a rare treat to be able to access Alameda Wholesale Nursery.  You can only do so if you are a registered landscape professional.
Alameda Wholesale Nursery is one of the oldest and largest wholesale nurseries in Colorado. It offers over a thousand varieties of the finest plant material and planting supplies to landscape contractors large and small. We have been serving the nursery industry for over 73 years, conveniently located just west of Santa Fe and Dartmouth on over 30 sprawling and beautiful acres.
Beginning Bonsai Course
Saturday, April 28th, 2018
Denver Botanic Gardens
1007 York Street; Denver, CO  80206 | Map
Are you mystified by the many centuries old Japanese tradition of bonsai? Join us for an entertaining and informative class with nationally recognized bonsai masters Harold Sasaki and Larry Jackel as they debunk the myths, fictions and misconceptions surrounding this living art form. Each participant receives a tree, ceramic pot, wire, soil and gravel in this hands-on experience of creating a finished bonsai, which you can home.
** this class sells out very quickly, class size is very small for hands on instruction and attention from instructors, please register early
Instructors: Harold Sasaki and Larry Jackel  (Both are Rocky Mountain Bonsai Society members)
Price: $105, $95 member, $30 materials fee included
Special Instructions: There will be a break for lunch, please bring lunch or there is a cafe onsite for you to purchase lunch.
This is a Denver Botanic Gardens' Program.  Please go to this website for more information and to register -
Visiting American Bonsai Artist - April 28th
Mr. Ryan Neil
St. Helens, Oregon
Saturday Evening, April 28th - 6:30 to 9:30 PM
Denver Botanic Gardens' Plant Society Building
1007 York Street; Denver, CO  80206 | Map
Ryan’s career in bonsai began long before he made the commitment to a life with little trees. Born and raised in Colorado, Ryan spent his youth amidst the fantastic array of tortured and stunted trees that give the Rocky Mountains their splendid character. It wasn’t until Ryan was in high school that he found bonsai, but his passion for the art grew and led him to California. It was there he obtained an education in horticulture and met Mr. Ben Oki, who proved to be the catalyst for organizing Ryan’s apprenticeship with world renowned master Mr. Masahiko Kimura.
After six years in Japan as a bonsai apprentice, Ryan is now a bonsai professional pursuing excellence in the art throughout the United States and abroad. His travels have taken him as far as Europe and Asia. However, Ryan quickly contests that his most ambitious endeavors remain within the United States.
The Western world has yet to realize its full potential in the art of bonsai. Through the coordinated efforts of respected professionals, dedicated enthusiasts, and like-minded groups and organizations, Ryan hopes to achieve a bonsai community capable of self sufficiency. Only then will western bonsai truly be able to represent itself and give voice to the amazing species and trees which characterize this culture.