Calendar of Events

Monthly DOS Meeting

“This month the Denver Orchid Society welcomes Aurthur Katz. Arthur has been growing orchids for over 35 years. His orchid interests range from the pleurothalidinae to the phragmepidiums, from the maxillarias to the laelias. In particular, he appreciates the orchids that are unique and unusual.
Arthur is an accredited orchid judge , was Chair of the Mid-Atlantic Judging Center and Chair of the Florida North-Central Center. Since 1994, he has taken groups of orchid enthusiasts to Ecuador every year, exploring for orchids in Southeast Ecuador.Apart from Orchids and socializing with orchid folk, he enjoys traveling and photography. Arthur was a clinical psychologist in his pre-Florida life.  For January’s meeting Arthur will be giving his presentation “What is orchid judging all about?” where he will give us a judges minds-eye on what takes place when you enter a plant in for judging and what you can do to improve your chances for that big award!

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Meeting General Information
The Denver Orchid Society meets on the 2nd Tuesday of every month, with the exception of a summer break in July and August. Visitors are always welcome! Our meetings include a short business discussion, an informal Show-and-Tell, an expert speaker orchid presentation, and the sale of orchid plants.


2020 Meeting Schedule

  • January 13 — Mark Van Der Woerd
  • February 11 — Dave Haelterman
  • March 10 — Plant Study and Grow Competition
  • April 14 — LED Lighting Presentation
  • May 12 — Ron Parsons-Miniature Orchids
  • June 9 — NO MEETING; Lowry Construction
  • July — NO MEETING-Summer Break
  • August — Summer Event & BBQ/Pot Luck
  • September 8 — Daryl – Tezula Orchids
  • October 13 — Graham – Lehua Orchids
  • November 10 — Member Grow Space Presentations
  • December  — Pot Luck/Auction

 Pictures from our 2019 Spring Show


 Rocky Mountain Judging Center Sessions

2019 RMJC Schedule
General Information

Judging sessions are open to all orchid growers and are held on the 2nd Saturday of each month at the Colorado Federation-Garden Clubs building, 1556 Emerson Street in Denver. Off-street parking is available. Centrally located just north of Colfax, this location is close to Denver Botanic Gardens. Everyone is welcome, so try to attend at least once. Bring your best plants and stay a while. It is a great educational experience.
Map >

Typical Session

6:00 p.m. – Judges training
6:30 p.m. – Plant registration
7:00 p.m. – Judging begins (except during the DOS annual show in which case judging starts the morning before the show opens to the public.)