Pests: These shrubs have few pests but can get spider mites if planted in full sun.
Light: Plant in mixed sun and shade (won’t bloom in full shade).
Soil: Hydrangeas like moist, fertile, well-drained soil with lots of organic matter, such as peat or chopped leaves. Mulch plants to help keep roots cool and moisture consistent. They’re also great plants for the coast since they can tolerate salty conditions.
Prune: Remove dead growth in spring; trim off faded blooms in summer and fall.