Wow! What a bloom! This hydrangea produces a bevy of huge flower clusters (as much as 12 inches across) that are pure white, maturing to chartreuse. Unlike other Hydrangea arborescens, Incrediball® has sturdy stems that keep the hefty flowers aloft. It’s very cold tolerant and can be grown as far south as zone 9.
H. arborescens prefers full sun to partial shade. It will adapt to any soil type but grows best in humus-rich, moist, well-drained soil. Incrediball® blooms on new wood so prune back in late winter to promote strong new growth and abundant flowers.
The beauty of H. arborescens is that the blossoms will dry on the plant and stay in place well into winter. I find the subtle change as the blooms progress from buds to dried flowers one of the shrub’s best attributes.>