Species smooth hydrangea
Smooth Hydrangea arborescens 'Green Dragon' - lime-green blossoms forming round clusters and green leaves

smooth hydrangea

Hydrangea arborescens 'Dardom' WHITE DOME

The Smooth Hydrangea (Hydrangea arborescens 'Dardom' WHITE DOME) is a deciduous shrub with rich, dark green foliage and white flowers. It blooms from midsummer to early fall, with large, cone-shaped panicles of creamy white flowers. It's fast-growing and relatively easy to care for, thriving in full sun to part shade. It grows best in moist, well-drained soil and reaches a height and spread of 2-4ft. As its name suggests, the flower heads are smooth and soft to the touch. Great planted near patios, entryways, windows, or walkways, as an ornamental or border plant for a garden, or it can be used to add a pop of color to large areas.

Cycle:

Perennial

Watering:

Average

Propagation:

Layering Propagation,Division,Greenwood Cuttings,Hardwood Cuttings,Grafting Propagation

Hardiness Zone:

4 - 9

Flowers:

White Flowers

Sun:

Part shade

Leaf:

Yes

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Care Level:

Medium

watering

To ensure the best results for your smooth hydrangea plant, it is important to water properly. Aim to water deeply and thoroughly once per week in order to keep the plant hydrated. Water the plant at the base and avoid wetting the foliage, as it can cause the leaves to become diseased. During dry summer months, the plant may need additional watering, up to twice per week. Make sure that the soil does not become too dry, as this will cause the plant to suffer. If the surrounding soil begins to feel dry to the touch, it is time to water your plant again.

sunlight

Smooth hydrangeas grow best in full sun to partial shade. Plants in full sun will have larger blooms than those in shade, so direct sun for several hours each day is desirable. The optimal amount of sunlight for this species is 6 to 8 hours of direct sunlight, or 8 to 12 hours of indirect or filtered sunlight per day. In warm climates, they should be in light shade or receive morning sun combined with afternoon shade. In cold climates, more direct sun is needed to give the plant enough warmth to survive the winter months.

pruning

Smooth hydrangea (Hydrangea arborescens 'Dardom' WHITE DOME) should be pruned in late winter or early spring for a neat and attractive appearance. Start pruning by removing any dead wood or weak stems, cutting them back to the ground. Prune the sides of the plant to create a dome shape, removing 1/3 of the shrub’s overall growth at the most. Repeat this type of pruning each year. Additionally, prune off any large flowering heads, leaving only healthy shoots and buds.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Hydrangea arborescens 'Dardom' WHITE DOME typically starts flowering in late spring, usually in May or June.

Starts Flowering

Hydrangea arborescens 'Dardom' WHITE DOME typically starts flowering in late spring, usually in May or June.

Hardiness Map