What’s the Secret to Rhododendron Success in Seattle Yards?

Rhododendrons—Washington’s state flower—are backbone shrubs from shaded Madison Park to sunny Laurelhurst. Their spring blooms make a neighborhood pop with color. 

To thrive, rhododendrons need acidic, moist, and well-drained soil—conditions common in natural PNW woodlands. Landscape professionals start by prepping the planting area with compost and mulch, then routinely refresh mulch to conserve moisture and discourage weeds. 

Pros plant rhododendrons in dappled shade or with morning sun, avoiding deep shade or reflected heat. Watering is targeted (at the base), minimizing leaf diseases. After bloom, landscapers deadhead flowers to focus energy on root and leaf growth next year. If size or shape becomes unruly, selective thinning or even rejuvenation pruning can restore older shrubs without losing blooms. 

With professional guidance, homeowners get rhododendrons that are healthy, long-lived, and consistently full of brilliant spring flowers.