Bigleaf Hydrangea (Hydrangea macrophylla 'Next Generation® Pistachio') brings bold, showy summer blooms to your landscape in a classic, mounded shrub form. You will get the best performance with morning sun and afternoon shade, or bright, dappled light under an open canopy; protect it from hot afternoon sun for the healthiest foliage and longest-lasting flowers.
Plan to give your plant consistently moist soil that drains well. Hydrangeas do not like to dry out for long, especially in warmer weather, so a thick mulch layer helps keep roots cool and evenly moist. Choose a planting spot with room for a mature spread and good air circulation, and water at the base to keep leaves dry when possible.
Flower color in bigleaf hydrangeas can vary with soil conditions, often shifting toward blue tones in more acidic soils and toward pink tones in more alkaline soils. If you want to influence bloom color, start with a soil test so you can make careful, gradual adjustments rather than guessing.
Pruning is usually minimal. Because many bigleaf hydrangeas set buds on older stems, heavy pruning at the wrong time can reduce flowering. Remove only dead or winter-damaged wood in spring, and if shaping is needed, prune soon after flowering and before late summer. In colder regions, protect flower buds by siting the shrub out of drying winds and maintaining winter mulch.