Rhododendron 'Blue Diamond'
Common name: 
Blue Diamond Rhododendron
Pronunciation: 
rho-do-DEN-dron
Family: 
Ericaceae
Genus: 
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No
  • Broadleaf evergreen shrub, 3 ft (0.9 m), vertical, dense, finaly branched.  Leaves small (ca. 3.5 by 1.5 cm), azalea-like, elliptic, bronze-green in winter.  Flowers small, lavender-blue, corolla almost flat , about 4.5 cm wide, with a short tube, 4-5 per truss, blooms all along stems.  At least two forms are grown.  (Many cultivars with similar flowers.)
  • -5°F, early-mid, 4/4/4 [flower / plant & foliage / performance; scale 1 (poor) - 5 (best)].  Sun (best) to light shade, susceptible to root weevils.
  • A cross of R. augustinii × 'Intrifast'
  • Oregon State Univ. campus: east of Women's Building, between walk and street
Click image to enlarge
  • plant habit, flowering

    plant habit, flowering

  • leaves and flowers

    leaves and flowers

  • flower cluster

    flower cluster

  • flower

    flower

  • leaves

    leaves