Big Daddy Hydrangea

Big Daddy Hydrangea is a bold bigleaf hydrangea known for producing enormous, rounded mophead flowers that may reach 12 to 14 inches across. Depending on the soil conditions, the blooms may appear sky blue, lavender, purple, or soft pink, creating a dramatic display from early summer into fall.

Its flower color is influenced by soil pH and the amount of aluminum available to the plant. More acidic soil generally encourages blue flowers, while less acidic or alkaline conditions usually produce pink blooms. Test the soil before adding products intended to change the flower color, since unnecessary amendments can affect plant health.

Thick stems help support the oversized flowers, while the large, glossy green leaves give the shrub a lush, full appearance throughout the growing season. The impressive blooms also make beautiful fresh-cut arrangements.

Big Daddy Hydrangea works well as a specimen plant, flowering hedge, foundation shrub, mixed-border plant, or addition to a cut-flower garden. Give it enough room to reach its mature height and width so the broad leaves and large flower clusters can develop without crowding nearby plants.

Plant Big Daddy Hydrangea in morning sun or part shade with protection from intense afternoon heat, especially in Georgia and other Southern gardens. Choose moist, well-drained soil and water deeply during hot, dry weather. A two- to three-inch layer of mulch can help retain soil moisture and keep the roots cooler.

Big Daddy Hydrangea can bloom on old and new growth, so heavy pruning should be avoided. Wait until new leaves appear in spring, then remove only stems that are clearly dead, damaged, or weak. Our Old Wood vs. New Wood Hydrangeas guide explains why knowing a hydrangea’s blooming habit is important before pruning.

The North Carolina Extension Bigleaf Hydrangea profile provides additional information about afternoon shade, soil, moisture, flower color, and landscape uses. With careful pruning, steady moisture, and protection from intense afternoon sun, Big Daddy Hydrangea can provide impressive flowers for many growing seasons.