To confirm the registration of a Dendrobium hybrid & view its composition/progeny: (Database as at 1 January 2018 RHS registrations)
Den. Gillieston Jazz = Peewee x Zip Registration: 1996 by Skillicorn W.
Cracker = Hunter Cracker 2017 Farrell C.
Purple Joy = Purple Cluster 2013 Wilson Ng
Rutherford Blushing Bride = Blushing Vista 2014 Clarke F.
Tosca Starburst = Starburst Vista 2017 Clarke F.
Zip = Sapa Beauty 2012 Pham M. -Clarke F.