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Mount Saint Helens Exbury Azalea

Rhododendron 'Mount St. Helens'

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Mount Saint Helens Exbury Azalea (Rhododendron 'Mount St. Helens') at Rutgers Landscape & Nursery

Mount Saint Helens Exbury Azalea flowers

Mount Saint Helens Exbury Azalea flowers

(Photo courtesy of NetPS Plant Finder)

Height:  6 feet

Spread:  6 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  4

Other Names:  Girard's Mount St. Helens, Mt. Saint Helens

Group/Class:  Girard Hybrids

Description:

This beautiful hybrid is open and airy with buds that are coral red as they open; the blooms are pink and coral with a yellow blotch in a cluster; absolutely must have well-drained, highly acidic and organic soil

Ornamental Features

Mount Saint Helens Exbury Azalea is covered in stunning clusters of lightly-scented pink trumpet-shaped flowers with coral-pink overtones and a yellow blotch at the ends of the branches in mid spring before the leaves. It has green deciduous foliage. The narrow leaves do not develop any appreciable fall color.

Landscape Attributes

Mount Saint Helens Exbury Azalea is an open multi-stemmed deciduous shrub with a mounded form. Its relatively coarse texture can be used to stand it apart from other landscape plants with finer foliage.

This is a relatively low maintenance shrub, and should only be pruned after flowering to avoid removing any of the current season's flowers. It has no significant negative characteristics.

Mount Saint Helens Exbury Azalea is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • General Garden Use

Planting & Growing

Mount Saint Helens Exbury Azalea will grow to be about 6 feet tall at maturity, with a spread of 6 feet. It tends to be a little leggy, with a typical clearance of 1 foot from the ground, and is suitable for planting under power lines. It grows at a slow rate, and under ideal conditions can be expected to live for 40 years or more.

This shrub does best in full sun to partial shade. It requires an evenly moist well-drained soil for optimal growth, but will die in standing water. It is very fussy about its soil conditions and must have rich, acidic soils to ensure success, and is subject to chlorosis (yellowing) of the foliage in alkaline soils. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This particular variety is an interspecific hybrid.

 
 
Hardiness Zone Plant Height Minimum Sunlight Soil pH Preference
Characteristics
Accent  Massing  Garden 
Applications
Flowers  Winter Value 
Ornamental Features


Disclaimer - Rutgers Landscape & Nursery Plant Finder is an online resource representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact Rutgers directly for current availability.