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R. 'Red River'

Rhododendron Hybrid

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Hybridized By Leach, Dr. David G.
Seed Parent R. 'Leach's Mount Mitchell'
Pollen Parent R. 'Mars x Fanfare'
Introduced 1967
10 Year Height 150 cm. (5ft.)
Bloom Time late
Flower ?
Flower Color ?
Fragrance ?
Leaves elliptic
Leaf persistence ?
Minimum Hardiness -25 C (-13 F)
Registration Registered
Extra Information Large, upright habit. Hardy to at least -10F likely much lower.
R. 'Red River' photo of R. 'Red River'. Truss, flowers, and leaves. Location: Martha's Vineyard, MA z7a. Photo by: Peter Norris
Title
R. 'Red River'
Photo By
Peter Norris
Date Taken
June 16, 2026
Location
Martha's Vineyard, MA z7a
License
CC BY 4.0
Attribution
Sizes
small 768 x 906, 73 KB medium 1510 x 1780, 248 KB Full 1510 x 1781, 553 KB
Description
Truss, flowers, and leaves
Red River photo of R. 'Red River'. Location: private garden Antigonish, NS, Canada. Photo by: Sharon Bryson
Title
Red River
Photo By
Sharon Bryson
Date Taken
June 25, 2008
Location
private garden Antigonish, NS, Canada
License
Copyright, Sharon Bryson.
Sizes
small medium
Red River photo of R. 'Red River'. Buds opening. Location: private garden Antigonish, NS, Canada. Photo by: Sharon Bryson
Title
Red River
Photo By
Sharon Bryson
Date Taken
June 25, 2008
Location
private garden Antigonish, NS, Canada
License
Copyright, Sharon Bryson.
Sizes
small
Description
Buds opening