Beloved by gardeners, Hydrangea arborescens ‘Annabelle’ (Smooth Hydrangea) is an exceptional flowering shrub. Its large, rounded flower clusters, up to 12 in. across (30 cm), bring vibrant beauty to shady areas. Blooming for months, the flowers change from lime-green to brilliant white, then pale green, and finally tan in fall. Resistant to insects and diseases, Annabelle is ideal for mixed borders and stunning cut arrangements.