Kindly sponsored by
Peter Norris, enabling the use of The Rhododendron Handbook 1998
New article for Trees and Shrubs Online.
'Rhododendron dilatatum' from the website Trees and Shrubs Online (treesandshrubsonline.
Shrub or small tree, to 2 m; young shoots glabrous. Leaves in whorls of up to three, at the ends of the branches, 3-5 x 1.5-3.5 cm, rhombic, apex acuminate, lower surface covered with adpressed pilose hairs, eglandular; petioles papillate. Flowers solitary or up to 3, appearing before the leaves; calyx minute; corolla rose-purple (rarely white), open-campanulate, 20-30 mm; stamens 5; ovary glandular, style glabrous. Flowering May-June. Royal Horticultural Society (1997)
Distribution Japan S Honshu
Habitat c.1,000 m
RHS Hardiness Rating H6
Conservation status Least concern (LC)
Allied to R. decandrum (q.v.). Only the type form is in cultivation. Royal Horticultural Society (1997)