Rhododendron maximum ‘Roseum’, commonly known as Rosebay Rhododendron, is a broadleaf evergreen shrub native to eastern North America. This ‘Roseum’ variety is prized for its showy pale pink to rose-colored flower clusters that bloom in mid to late summer, later than most rhododendrons. Growing 10 to 15 feet tall and wide, it forms a dense, rounded shrub ideal for naturalized areas, woodland gardens, and shady borders.

The large, leathery green leaves provide year-round interest and serve as excellent cover for birds and small wildlife. Its nectar-rich blooms attract pollinators, including bees and butterflies, while its dense structure offers important shelter for wildlife.

Why Choose Rhododendron maximum ‘Roseum’?

• Showy clusters of pink flowers bloom later in the season than most rhododendrons
• Evergreen foliage provides year-round structure and interest
• Supports pollinators and offers cover for wildlife in shaded landscapes

Cultivating Tips

• Thrives in partial to full shade with acidic, well-drained, moist soil
• Mulch to maintain soil moisture and keep roots cool
• Minimal pruning required; remove spent flower clusters and dead wood as needed

Design Ideas for Your Garden

• Plant in woodland gardens or shaded borders for year-round structure and summer blooms
• Use as a hedge or natural screen for privacy and habitat
• Combine with ferns, native grasses, and shade-loving perennials for layered planting

Ecological Benefits

• Attracts pollinators like bees and butterflies during its blooming period
• Provides dense shelter and nesting sites for birds and small mammals
• Native evergreen shrub that enhances biodiversity and supports woodland ecosystems