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Rhododendron English Roseum


English Roseum Rhododendron

Rhododendron catawbiense 'English Roseum'


English Roseum Rhododendron flowers

English Roseum Rhododendron in bloom

Height:  5 feet

Spread:  4 feet

Sunlight: shade or part shade

Hardiness Zone:  6a

Other Names:  Catawba Rhododendron


An attractive broadleaf evergreen shrub with cheerful pink flowers in spring and a compact upright habit, quite hardy, good in partial shade; absolutely must have well-drained, highly acidic soil.

Ornamental Features

English Roseum Rhododendron is smothered in stunning clusters of lilac-purple trumpet-shaped flowers with rose overtones and lavender centers at the ends of the branches in mid-spring, which emerge from distinctive purple flower buds. It has green foliage. The large narrow leaves remain green throughout the winter. 

Landscape Attributes

English Roseum Rhododendron is a multi-stemmed evergreen 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.

English Roseum Rhododendron is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • General Garden Use

Planting & Growing

English Roseum Rhododendron will grow to be about 5 feet tall at maturity, with a spread of 4 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 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 is a selection of a native North American species.