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Gibraltar Azalea

Rhododendron 'Gibraltar'

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Gibraltar Azalea (Rhododendron 'Gibraltar') at Plymouth Nursery

Gibraltar Azalea flowers

Gibraltar Azalea flowers

(Photo courtesy of NetPS Plant Finder)

Gibraltar Azalea (Rhododendron 'Gibraltar') at Plymouth Nursery

Gibraltar Azalea in bloom

Gibraltar Azalea in bloom

(Photo courtesy of NetPS Plant Finder)

Height:  5 feet

Spread:  5 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  4b

Group/Class:  Exbury Hybrids

Description:

A stunning variety with bright orange and yellow blooms that cover airy open branches in mid spring; showy when massed in a border or as a garden accent; absolutely must have well-drained, highly acidic and organic soil

Ornamental Features

Gibraltar Azalea is covered in stunning clusters of lightly-scented orange trumpet-shaped flowers with a yellow blotch at the ends of the branches in mid spring before the leaves. It has green foliage throughout the season. The narrow leaves do not develop any appreciable fall color. The fruit is not ornamentally significant.

Landscape Attributes

Gibraltar Azalea is an open multi-stemmed deciduous shrub with an upright spreading habit of growth. 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.

Gibraltar Azalea is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • General Garden Use

Planting & Growing

Gibraltar Azalea will grow to be about 5 feet tall at maturity, with a spread of 5 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 leaves 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