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Rhododendron 'Dexter's Giant Red' 01.jpeg
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Rhododendron 'Dexter's Giant Red' | Dexter's Giant Red Rhododendron

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DESCRIPTION
Rhododendron ‘Dexter’s Giant Red’ is an evergreen shrub with an upright, broad, rounded habit and substantial, glossy olive-green leaves. In mid to late spring, buds open strong purplish red and mature to a blend of red and deep rose tones. Each bloom has a very dark red blotch deep in the throat, and red spotting that extends across the upper petals for a full, glowing truss.

This cultivar comes from the famous breeding work of Charles O. Dexter at his estate in Sandwich, Massachusetts, where thousands of seedlings were raised between the 1920s and early 1940s. Its generous flower trusses, reliable late-spring bloom, and year-round evergreen presence make it a bold choice for woodland borders, large mixed shrub plantings, and prominent garden focal points.

DESCRIPTION
Rhododendron ‘Dexter’s Giant Red’ is an evergreen shrub with an upright, broad, rounded habit and substantial, glossy olive-green leaves. In mid to late spring, buds open strong purplish red and mature to a blend of red and deep rose tones. Each bloom has a very dark red blotch deep in the throat, and red spotting that extends across the upper petals for a full, glowing truss.

This cultivar comes from the famous breeding work of Charles O. Dexter at his estate in Sandwich, Massachusetts, where thousands of seedlings were raised between the 1920s and early 1940s. Its generous flower trusses, reliable late-spring bloom, and year-round evergreen presence make it a bold choice for woodland borders, large mixed shrub plantings, and prominent garden focal points.

 

  • Family: Ericaceae
    Height: 3 to 5 ft
    Width: 3 to 5 ft
    Foliage color: Glossy dark green evergreen leaves
    Flower color: Purplish-red to bright red
    Bloom time: Mid to late spring
    Light requirements: Partial shade
    Water requirements: Moderate; remove spent flowers; prune lightly for shaping or to remove dead wood
    Maintenance: Low — remove spent flower clusters after bloom; light pruning
    Growing zone: USDA zones 5 to 8
    Wildlife attractors: Spring blooms attract bees and other pollinators; evergreen foliage provides cover and shelter for birds and small wildlife year-round

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