Bring year-round structure to shaded gardens with Rhododendron maximum 'Roseum' (Rosebay Rhododendron 'Roseum'), a broadleaf evergreen known for its bold, leathery leaves and showy trusses of rose-pink to pinkish-white flowers in summer. In the landscape it matures to about 72-96 inches tall and can grow wider with age, forming a large, multi-stemmed shrub that looks at home in woodland edges and naturalized plantings.

Give your plant moist, well-drained, organic soil on the acidic side, and keep it evenly watered, especially during establishment and summer heat. Set the root ball slightly high and mulch with bark or pine needles to help protect shallow roots and stabilize moisture and soil temperature. Choose a site with part shade to full shade, ideally sheltered from hot afternoon sun and drying winds.

Once established, this rosebay rhododendron rewards you with dependable evergreen presence and seasonal bloom color. It works well as a specimen, an understory grouping, or a broad evergreen backdrop behind smaller shade perennials. As with most rhododendrons, avoid digging or cultivating around the base; instead, top-dress with compost and refresh mulch annually.

Prune only as needed, and do it right after flowering so you do not remove next season's buds. Provide good drainage and avoid overwatering to reduce the risk of root problems. With the right site, you will enjoy a rugged native shrub that brings texture, scale, and summer flower trusses to shaded spaces.

Specifications

• Cold hardiness zone: 3-7 (-40 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Part sun   Shade
• Growth rate: Moderate
• Mature height: 72-96"
• Spread: 96-120"
• Evergreen: Yes
• Native to the U.S.: Yes

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