Rhododendron obtusum

Rhododendron obtusum

  • Rhododendron obtusum
  • Rhododendron obtusum
  • Flower name
    Rhododendron obtusum
  • Scientific name
    Rhododendron obtusum
  • Aliasキリシマ, ツツジ, 霧島躑躅
  • Place of originJapan
  • Place of floweringGarden, Park, Horticultural species, Bonsai, Potted flower
  • Flowering seasonApril, May

What is Rhododendron obtusum

Rhododendron obtusum or Kirishima azalea (Scientific name: Rhododendron obtusum) is an endemic Japanese species, evergreen broadleaf shrub of the family Ericaceae. Selected from the Kirishima mountain in the southern part of Kyushu, improved mountain azalea was selected and cultivated mainly in Edo area during the Edo period, and then spread throughout Japan. The height of trees is about 50 to 100 cm. Leaves are green, oblong and attached to each other in pairs. From April to May, 2 or 3 rings will bloom with red, red purple, pink, white flower similar to rhododendron. Flower diameter is 5 ~ 5 cm at 2 ~ 3 cm. There are five stamens. Uses include bonsai, potted plant, cut flower, flower arrangement, garden tree, hedge, park tree.


  • Eye
    Ericales
  • Family
    Ericaceae
  • Genus
    Rhododendron
  • Species
    R. obtusum
  • Type of flower
    Radial symmetrical flower
  • Array of flower
    Gross inflorescence
  • Petal shape
    Funnel/trumpet shaped
  • Leaf type
    Oval
  • Edge of the leaf
    Serrated
  • Life typeevergreen broadleaf shrub
  • Flower colorsPink
  • Colors of the leavesGreen
  • Fruit colorGreen
  • Height50.0 ~ 100.0 cm
  • Diameter of flower2.0 ~ 3.0 cm

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