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More Information: Rhododendron 'Martha Isaacson'


R. 'Martha Isaacson' 
  Photo: Harold Greer

Predominant Flower Color:  White

Flower/Truss Description:  An azaleodendron. Flower fragrant, white with a distinctive pink streak from center to outside.

Fragrant:  Yes

Bloom Time:  Late Midseason

Foliage Description / Plant Habit:  Maroon-tinted leaves. Deciduous. Good vigorous habit.

Height:  5 feet in 10 years.

Cold Hardiness Temp:  0°F  ( -18°C)

Parentage  (Seed Parent x Pollen Parent): 
     occidentale x Mrs Donald Graham

Elepidote (E) or Lepidote (L):  

Hybridized or Selected by:  Ostbo

Registration Reference:  RHS 62

Glossary of plant description terminology.
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
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Ph: 631-533-0375   E-Mail: member@arsoffice.org
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