A joint initiative between Phipps Conservatory and the Orchid Society of Western Pennsylvania to create and cultivate an orchid collection of note for enjoyment, education and research.

The results of the Cypripedium Survey were distributed at the Paph Forum in Washington, D.C., on January 25th by Katie Schuller of Phipps, Carolyn Bolton and Demetria Marsh.  The survey shows the most important Cyp hybrids and species for our Cypripedium Wish List for the Barbara Tisherman Slipper Orchid Collection, Phipps’ Living Museum of Slipper Orchids.  The Cyp Wish List was also distributed to the hundred participants with a reminder that the Paph and Phrag Surveys and Wish Lists are available on our OSWP website.  Donations of Wish List Slippers were solicited for Phipps from the Slipper experts, vendors and enthusiasts.

In the spring the P-OSI teams hope to study the new Phipps orchid collection inventory to see how we can help Phipps update and grow their orchid collection in all ways, to continue to be one of special note.


If you’d like to be a part of this phenomenal team effort, contact us!  We’d love to have you for Pfun and P-OSI!  It’s a wonderful learning experience for all of us, a great way to give back to the community and to help make Pittsburgh someplace even more special.

The Barbara Tisherman Slippper Orchid Collection at Phipps Conservatory and Botanical Gardens (BTSOC) in Pittsburgh, PA, was established in 2012 as part of the development of the Phipps-Orchid Society Initiative (P-OSI).  P-OSI is a formal partnership between Phipps  and the Orchid Society of Western Pennsylvania, whose mission is to build and maintain a “signature” orchid collection as a whole, as well as to build and maintain the Barbara Tisheman Slipper Orchid Collection.


The mission of the BTSOC is to build a living museum of Slipper Orchids.  The purpose is to have a place (Phipps Conservatory) where orchid enthusiasts and experts, as well as the general public, can see all the Slipper species as well as the important Slipper hybrids, for enjoyment, education and research.


Phipps was designated as the Slipper Orchid Repository by the North American Plant Collections Consortium (now the Plant Collections Network) thru a rigorous application process and onsite visit.


In order to accomplish this, a Paphiopediulum Historic Hybrid Survey was completed and from that came the BTSOC Paph Hybrid Wish List.   (See Complete Historic Paph Survey, Top Picks Paph Survey and BTSOC Paph and Phrag Wish List.)

Next came the Phragmipedium Historic Hybrid Survey and from that came the BTSOC Phrag Wish List.   (See Complete Results Historic Phrag Survey, Top Picks Phrag Survey and BTSOC Paph and Phrag Wish List.)

The Cypripedium Historic Hybrid Survey has just been completed, and there is now a BTSOC Cyp Wish List.  (See Complete Results Historic Cyp Survey, hybrids and species and BTSOC Cyp Wish List)

The Wish Lists have been updated as species and hybrids have been acquired in the collection by purchase or donation.


For more information, contact:

Nancy Kline

Demetria Marsh



© 2023 Orchid Society of Western Pennsylvania

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