Smooth Hydrangea
The cultivar 'Annabelle' produces flower heads up to 30 cm in diameter.
Smooth hydrangea is one of the most beloved ornamental shrubs in gardening, native to the eastern regions of North America. It has earned the affection of gardeners worldwide for its reliability and extended flowering period. Unlike its large-leafed relatives, this species is far less demanding and proves hardier in cold climates—which explains its particular popularity across Ukraine and similar regions.
The shrub is renowned for its enormous flower clusters that emerge in summer and persist well into autumn. Freshly opened blooms display a milky white colour, gradually shifting towards cream and sometimes taking on pinkish tones as the petals age—a perfectly natural progression. The cultivar 'Annabelle' stands out as the star of the group, producing massive globe-shaped flowerheads that can reach 30 centimetres in diameter. Other selections offer flowers that shift from white to pink throughout the season, such as 'Incrediball'.
In the garden, smooth hydrangea performs equally well as a specimen plant or woven into mixed borders. It sits beautifully alongside astilbe, hosta and other shade-loving companions that share its preference for dappled light and consistent moisture. Consider it for living screens, to brighten shaded corners, or to add softness beneath conifers. It integrates seamlessly into any garden style.
If you seek a plant that delivers reliable results regardless of experience level, this hydrangea is precisely what you need. It is dependable, handsome and generous with its blooms. Year after year, it rewards you with sumptuous flowering that persists until the first hard frosts, transforming even a modest garden into a floral paradise.
Smooth Hydrangea — planting & location
More cold-hardy than Panicle Hydrangea.
How to water Smooth Hydrangea
Do not allow the soil to dry out.
Fertilizing and pruning: Smooth Hydrangea
Cut back to 20–25 cm from ground level.