Overview & Description

The Original Endless Summer® Big Leaf Hydrangea (Hydrangea macrophylla ‘Bailmer’) is the groundbreaking reblooming hydrangea that revolutionized the industry by reliably flowering on both old and new wood, ensuring beautiful blooms even after harsh winters or improper pruning. Its large, rounded, mophead flower clusters appear in early summer, with new flowers continuing to form on current season’s growth well into fall. Flower color is influenced by soil pH: vibrant pink in alkaline soils and rich blue in acidic soils. The large, glossy, dark green foliage provides an attractive backdrop and excellent disease resistance.

Growth & Size

This variety exhibits a rounded, bushy, multi-stemmed growth habit. It is a moderate-growing shrub, typically reaching a mature size of about 3 – 4 feet in both height and spread. Its compact, manageable form makes it ideal for borders, foundation plantings, containers, and small garden spaces.

Additional Notes

It blooms from early summer through fall. Hardy to Zone 4, it thrives in full sun to partial shade and prefers moist, well-drained, acidic, organically rich soil. It is low-maintenance, attracts pollinators, and benefits from mulch to retain soil moisture. Prune in late spring, removing only dead wood to avoid removing flower buds. An outstanding choice for northern gardens seeking the classic bigleaf hydrangea experience with reliable reblooming performance.