Alphabetical Plant Listing

Rhododendron 'Mount Saint Helens'

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


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 a 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 mould 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 plant are poisonous if ingested.

Learn How To Plant And Care for Your Azalea or Rhododendron

Azaleas and Rhododendrons are not difficult to grow but have special cultural requirements.Read More

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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 Azaleas - Rhododendrons, Rhododendrons - Azaleas
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)
Water Needs Average
Maintenance Low
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 City and Courtyard, Informal and Cottage, Traditional Garden

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Great Plant Combination Ideas with Azaleas - Rhododendrons

Guides with Azaleas - Rhododendrons

Great Plant Combination Ideas with Rhododendrons - Azaleas

Guides with Rhododendrons - Azaleas


Copyright: Image Botanic LLC

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.


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 Azaleas - Rhododendrons, Rhododendrons - Azaleas
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)
Water Needs Average
Maintenance Low
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 City and Courtyard, Informal and Cottage, Traditional Garden

Great Plant Combination Ideas with Azaleas - Rhododendrons

Guides with Azaleas - Rhododendrons

Great Plant Combination Ideas with Rhododendrons - Azaleas

Guides with Rhododendrons - Azaleas

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