Species smooth hydrangea
Smooth Hydrangea arborescens 'Piiha-I' ENDLESS SUMMER BELLA ANNA - Abundant clusters of purple-white flowers and green leaves on a smooth-textured shrub

smooth hydrangea

Hydrangea arborescens 'Piiha-I' ENDLESS SUMMER BELLA ANNA

Smooth hydrangea's (Hydrangea arborescens 'Piiha-I', Endless Summer Bella Anna) large, beautiful flowerheads make this plant an impressive addition to any garden. Blooms start out a lovely pale blue, and as the season progresses, they can deepen to the ends of the color spectrum. Its thick stems are resistant to strong winds, making it an ideal choice for exposed gardens. Its bright pink and purple leaves also add visual appeal throughout the year. Smooth hydrangea is easy to maintain with little needed pruning and enjoys full sun to partial shade. It is a deciduous shrub which is drought tolerant once established.

Cycle:

Perennial

Watering:

Average

Propagation:

Cutting,Layering Propagation,Division,Grafting Propagation

Hardiness Zone:

4 - 9

Flowers:

Magenta-pink Flowers

Sun:

Part shade

Leaf:

Yes

Growth Rate:

Low

Maintenance:

Low

Salt Tolerant:

Yes

Care Level:

Medium

watering

Water your smooth hydrangea thoroughly once a week. Make sure that the soil is moist 6-8 inches deep. To ensure it gets enough water, use a soaker hose or drip irrigation system for an extended period of time to water the base of the plant. During the hottest weeks of the summer, increase your watering to twice a week to maintain an even moisture level. If your hydrangea looks wilted, it's a sign that it needs more water.

sunlight

Smooth hydrangea (Hydrangea arborescens 'Piiha-I' Endless Summer Bella Anna) plants prefer full sun, meaning at least 6 hours of direct sunlight each day when in bloom. However, if placed in partial shade, the plant may also thrive. It is recommended to keep the soil moist and to water the plant regularly. The best time of day to water the smooth hydrangea is early in the morning or late in the evening when it is cooler and the water has time to soak in. During periods of extreme heat, more frequent watering may be necessary to ensure the hydrangea does not suffer from dehydration or sunburn.

pruning

Smooth Hydrangea (Hydrangea arborescens 'Piiha-I' ENDLESS SUMMER BELLA ANNA) should be pruned in mid-spring, preferably in April or May. Pruning should be done lightly and selectively, starting by cutting away any dead or damaged branches. Elderly branches can then be cut back to just above or below healthy wood, and no more than a third of the bush should be cut away in total. This helps to prevent the bush from becoming overly leggy. If a more controlled form of the shrub is desired, pruning can be done periodically over the course of the growing season.

Season

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

The Hydrangea arborescens 'Piiha-I' ENDLESS SUMMER BELLA ANNA, also known as smooth hydrangea, typically starts flowering in June.

Hardiness Map