(Smooth Hydrangea) White Dome® Hydrangea is a standout new variety with 6-10 inch lacy white blooms that appear like clouds hovering over the dark green foliage. Unlike many older varieties, like Hydrangea 'Annabelle', the huge dome-shaped flowers are held on very sturdy stems that do not droop, even after a heavy rain! White Dome® also blooms on new wood, so even if killed to the ground by extreme weather it will still produce summer flowers. The elegant pure white flowers are also very fragrant and not affected in color by the soil PH. One of the best varieties available! A Proven Winners® ColorChoice® Flowering Shrub.