Plant Finder

shrub

Rosebay Rhododendron

Rhododendron maximum

Add To My Wish List

print page
 
Rosebay Rhododendron (Rhododendron maximum) at Rutgers Landscape & Nursery

Rosebay Rhododendron flowers

Rosebay Rhododendron flowers

(Photo courtesy of NetPS Plant Finder)

Height:  15 feet

Spread:  15 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  4

Other Names:  Great Rhododendron, Great Laurel

Description:

A commanding, large growing variety with amazing rose-pink to white blooms; an unusual showy landscape plant; absolutely must have well-drained, highly acidic and organic soil, use plenty of peat moss when planting

Ornamental Features

Rosebay Rhododendron is covered in stunning clusters of rose trumpet-shaped flowers with white overtones at the ends of the branches from late spring to early summer. It has dark green foliage. The narrow leaves remain dark green throughout the winter. The fruit is not ornamentally significant.

Landscape Attributes

Rosebay Rhododendron is an open 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.

Rosebay Rhododendron is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • General Garden Use

Planting & Growing

Rosebay Rhododendron will grow to be about 15 feet tall at maturity, with a spread of 15 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 species is native to parts of North America.

 
 
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.