How Can Homeowners Get Big, Healthy Hydrangea Blooms in Seattle’s Climate?

Hydrangeas are showy stars in Seattle landscapes—from Laurelhurst to Ballard, their bold pinks, blues, and whites brighten summer gardens. But homeowners often ask: “How do I keep my hydrangeas healthy and blooming?” 

The answer is placement and care. Bigleaf hydrangeas (Hydrangea macrophylla) do well with morning sun and afternoon shade, while panicle hydrangeas (Hydrangea paniculata) are sunnier site candidates. Seattle’s acidic soils can naturally support beautiful blue blooms; soil amendments adjust color for those craving pink. 

Landscape crews improve hydrangea beds with compost for moisture retention and drainage, then add mulch to keep roots cool and moist—a must during our rare hot spells. Deep watering, especially in the dry weeks of summer, is essential. Pruning is subtle: experts remove old blossoms and thin out dead or weak wood after flowering rather than cutting heavily. 

The result of this care? Lush, healthy hydrangeas that blend color, shade, and privacy all summer long. A knowledgeable pro ensures plant variety, soil amendments, and pruning are tailored to your yard, helping homeowners enjoy a full season of spectacular blooms.