June Blooms in my Georgia Garden: Hydrangea arborescens

Voluptuous is the word that comes to mind every time I look at my Annabelle Hydrangeas. Huge bloom clusters can be 10 - 12 inches across and are so heavy that they weigh down the branches. The flower clusters are a pure white, and they hold up well in a vase where they can be enjoyed indoors. Annabelle is a selection of Hydrangea arborescens, native to the Eastern United States.

This smooth hydrangea, Hydrangea arborescens, is much easier to grow here in the South than the common mophead Hydrangea from Asia. Smooth Hydrangea is considerably drought tolerant. It loves the shade and grows quite happily in the dry shade of my woodland garden. Annabelle is also very cold-tolerant. Even if you live where it is too cold to grow macrophylla hydrangea, you can grow Annabelle. Hydrangea arborescens 'Annabelle' is hardy in USDA Zones 3-10.

Unlike the common mophead hydrangea, Annabelle will bloom every year, even if pruned in Winter or if we have a late frost. You see, Annabelle blooms on new growth, whereas macrophyllas bloom on last season's growth.  Also, since Annabelle Hydrangea blooms on new growth, unlike most other hydrangeas, this one will rebloom again in late summer if spent blooms are removed.

I enjoy cutting Annabelle blooms to take inside. The large flower clusters hold up well in a vase.

Hydrangea arborescens: Wildlife Value of the Smooth Hydrangea

If you have seen the lovely Annabelle Hydrangea, you love her. Hardy, easy to grow, and beautiful in summer, Hydrangea arborescens 'Annabelle' is probably the most versatile hydrangea you can grow in the garden.

Large voluptuous white blooms appear in early summer, despite the severity of your winter or any pruning that might have been done too late, because this hydrangea blooms on new growth. Additionally, Our native hydrangea arborescens, will bloom again in late summer if spent blooms are removed.

Hydrangea arborescens, also known as smooth hydrangea, is native to the Eastern United States. Annabelle is a selection known for its particularly large white blooms that can be up to 10 inches across.

Hydrangea Sphinx Moth
 photo from www.bugguide.net

You might already know the beautiful attributes of Hydrangea arborescens, but did you know Annabelle Hydrangea also has wildlife value? Here at Shady Gardens, we try to do all we can to encourage a diverse population of wildlife. Our garden is a sanctuary for birds, butterflies, insects, and mammals of all kinds. Hydrangea arborescens is a favorite host plant for Darapsa versicolor, which is also known as the Hydrangea Sphinx Moth. This Sphinx Moth pollinates the flowers on Hydrangea arborescens, then lays eggs on the leaves. 

Darapsa versicolor larva photo from www.bugguide.net

The Eggs develop into larvae which then feed on the leaves of the shrub. If you find a green caterpillar like the one shown here on the leaves of your Annabelle Hydrangea, you can count yourself blessed, because Darapsa versicolor is rarely seen.

Pink Annabelle Hydrangea at Shady Gardens Nursery

A pink-blooming form of Annabelle has been developed, so look for it at your local garden center or online.

(Hydrangea Sphinx Moth Photo credits: http://bugguide.net/node/view/411927, Nolie Schneider 2010 and Floyd Williams 2005.).

Annabelle Hydrangea: A True Southern Belle

Hydrangea Arborescens Annabelle

Annabelle Hydrangea is a selection of our native American hydrangea, Hydrangea Arborescens.

Despite what you might think when you observe the delicate appearance of Annabelle, she is one of the most versatile hydrangeas in the garden. Much hardier than Hydrangea macrophylla, Annabelle grows well in colder areas of the North as well as the deep South. Since she is hardy in USDA Zones 3-10, Annabelle can be grown all over the United States.

Huge showy white blooms can be up to 10 inches across and can literally cover the shrub in early summer.

Annabelle blooms on new growth, which is good news for those of us here in Georgia where late frosts can prevent macrophylla hydrangeas from blooming at all. If spent blooms are removed, Annabelle will display a second bloom in late summer.

Annabelle Hydrangea depicts qualities that one might expect from a true Southern Belle: quiet beauty, reserved gracefulness, and an unobtrusive nature.

Annabelle is dependable with her bloom. She can be trusted to bloom even in the hottest of summers and during our most severe drought. Buds will form no matter how cold the winter and no matter how slowly spring arrives.

Annabelle hydrangea does not require any sun, and blooms quite well in the shade beneath large trees.

Fall is the perfect time for planting all shrubs, including Annabelle Hydrangea.