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Rhododendron ‘Mount Saint Helens’

Mount Saint Helens' Rhododendron, 'Mount Saint Helens' Azalea, Late Midseason Azalea, Deciduous Azalea

Award General
Rhododendron 'Mount Saint Helens','Mount Saint Helens' Rhododendron, 'Mount Saint Helens' Azalea, Late Midseason Azalea, Deciduous Azalea, Pink Azalea, Pink Rhododendron, Pink Flowering Shrub

Prized for its multi-colored blooms and remarkable cold hardiness, Rhododendron ‘Mount Saint Helens’ is a stunning, medium-sized, deciduous Azalea. Opening from red buds in late spring to early summer, it bears abundant rounded trusses of 11 trumpet-shaped, rich salmon-pink flowers with a bold golden-orange blotch for the most striking display. Extremely floriferous, this Girard hybrid features handsome foliage of olive green leaves that turns golden-bronze in fall. This late midseason Azalea is quite tough and can withstand temperatures as low as -25°F (-32°C), without having its flower buds damaged.

  • Grows with an upright, spreading habit, up to 5-6 ft. tall and wide (150-180 cm).
  • Winner of the Rhododendron of the Year Award of the American Rhododendron Society for the Great Lakes, South West, and South Central regions.
  • A sun to part shade lover, this plant is easily grown in moist, acidic, humusywell-drained soils. Tolerates a fair amount of sun in cool northern summers. Plant shallowly in a location protected from strong winter winds. Protect from frost to prevent damage to flowers. Mulch annually with leaf mold to retain moisture, control weeds, and cool the soil.
  • Perfect for shrub borders or mixed borders, as a flowering hedge or privacy screen, foundation plantings, and shade gardens.
  • Attracts butterflies, hummingbirds, and birds.
  • Removing spent flowers promotes new growth.
  • All parts of the plant are poisonous if ingested.
  • Toxic to dogs, toxic to cats, toxic to horses.

Rhododendron and Azalea: How To Grow And Care with Success


Want to learn how to grow and care for rhododendron and azalea flowers like a pro? Follow these simple steps and enjoy their beauty

Requirements

Hardiness 3 - 7
Heat Zones 1 - 7
Climate Zones 1A, 1B, 2A, 2B, 3A, 3B, 4, 5, 6, 7, A2, A3
Plant Type Shrubs
Plant Family Ericaceae
Genus Rhododendron
Common names Rhododendron
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 5' - 6'
(150cm - 180cm)
Spread 5' - 6'
(150cm - 180cm)
Spacing 60" - 72"
(150cm - 180cm)
Maintenance Low
Water Needs Average
Soil Type Clay, Loam, Sand
Soil pH Acid
Soil Drainage Moist but Well-Drained
Characteristics Fragrant, Plant of Merit, Showy
Tolerance Rabbit
Attracts Butterflies, Hummingbirds
Garden Uses Beds And Borders, Hedges And Screens
Garden Styles Traditional Garden, Informal and Cottage, City and Courtyard
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Alternative Plants to Consider

Rhododendron Autumn Royalty
Rhododendron macrophyllum (Pacific Rhododendron)
Rhododendron alabamense (Alabama Azalea)
Rhododendron periclymenoides (Pinxterbloom Azalea)
Rhododendron catawbiense (Catawba Rosebay)
Rhododendron maximum (Great Laurel)

Recommended Companion Plants

Kalmia latifolia (Mountain Laurel)
Brunnera macrophylla ‘Jack Frost’ (Siberian Bugloss)
Matteuccia struthiopteris (Ostrich Fern)
Anemone nemorosa (Wood Anemone)
Hosta (Plantain Lily)
Hamamelis (Witch Hazel)

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Add a Splash of Color: Perfect Flowering Shrubs for Small Gardens
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Beautiful Azaleas and Rhododendrons for Northern California
Beautiful Azaleas and Rhododendrons for the Midwest
Beautiful Azaleas and Rhododendrons for the Pacific Northwest Region
Beautiful Azaleas and Rhododendrons for New England
Beautiful Azaleas and Rhododendrons for the Mid-Atlantic Region
Azaleas and Rhododendrons for Small Gardens
Extend the Blooming Season of your Azaleas and Rhododendrons
Azaleas and Rhododendrons with Attractive Fall Colors
Fragrant Azaleas and Rhododendrons
Hardiest Azaleas and Rhododendrons
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Best Companion Plants for Azaleas and Rhododendrons
Azaleas and Rhododendrons: What is the Difference?
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 3 - 7
Heat Zones 1 - 7
Climate Zones 1A, 1B, 2A, 2B, 3A, 3B, 4, 5, 6, 7, A2, A3
Plant Type Shrubs
Plant Family Ericaceae
Genus Rhododendron
Common names Rhododendron
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 5' - 6'
(150cm - 180cm)
Spread 5' - 6'
(150cm - 180cm)
Spacing 60" - 72"
(150cm - 180cm)
Maintenance Low
Water Needs Average
Soil Type Clay, Loam, Sand
Soil pH Acid
Soil Drainage Moist but Well-Drained
Characteristics Fragrant, Plant of Merit, Showy
Tolerance Rabbit
Attracts Butterflies, Hummingbirds
Garden Uses Beds And Borders, Hedges And Screens
Garden Styles Traditional Garden, Informal and Cottage, City and Courtyard
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Rhododendron
Guides with
Rhododendron
Not sure which Rhododendron to pick?
Compare Now

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