American Rhododendron Society Web Site ARS
navigation menu background

Rhododendron Plant Search

New Search

  "Printer Friendly" Page

More Information: Rhododendron 'Gargantua'


R. 'Gargantua' 
  Photo: Chris Klapwijk

Predominant Flower Color:  White

Flower/Truss Description:  Flower widely funnel-shaped, wavy edged, 5" across, white, with a green flush at base of tube.

Fragrant:  Yes

Bloom Time:  Late

Foliage Description / Plant Habit:  Leaves obovate-oblanceolate, about 8" long. A triploid clone with thick stems. Broad, vigorous-growing shrub.

Height:  6 feet in 10 years.

Cold Hardiness Temp:  0F  ( -18C)

Parentage  (Seed Parent x Pollen Parent): 
     decorum ssp. diaprepes selection

Elepidote (E) or Lepidote (L):  E

Hybridized or Selected by:  Stevenson

Registration Reference:  RHS 58

Note: Bloom time and 10 year height information are approximate and can vary dependent on weather and growing conditions.
Cold hardiness temperature is also an approximate value.


American Rhododendron Society
P.O. Box 214, Great River, NY 11739
Ph: 631-533-0375   Fax: 866-883-8019   E-Mail: member@arsoffice.org
1998-2018, ARS, All rights reserved.