Rhododendron catawbiense ‘Purpureum Grandiflorum’

Treated here as a cultivar of Rhododendron catawbiense Michaux. It is an evergreen shrub with shiny leaves, to 12cm, and bell-shaped, lilac-purple flowers, to 6cm across, in spring.  To 6m.  [Hilliers', Hortus].  Probably a hybrid.

Horticultural & Botanical History

Millais noted that Rhododendron catawbiense var. grandiflorum was cultivated by ‘continental nurserymen’ and has larger flowers and foliage. 

History at Camden Park

Listed only in an addendum to the 1857 catalogue [A.6/1857].


Azalea purpurea Dum.-Cours. (1811) is apparently an Indica azalea but I have no further information.  This is a possible although unlikely identification.

Published Jun 08, 2009 - 03:38 PM | Last updated Sep 11, 2011 - 04:13 PM

More details about Rhododendron catawbiense ‘Purpureum Grandiflorum’
Family Ericaceae
Region of origin

Eastern USA

  • Azalea purpureum grandiflorum Hort.


Common Name

Mountain rose bay

Name in the Camden Park Record

Azalea purpurea grandiflora 

Confidence level high