May Blooms in my Georgia Garden: Climbing Hydrangea

Climbing Hydrangea
 at Shady Gardens Nursery

There's nothing more beautiful right now than the lacy blooms of our Climbing Wild Hydrangea. Decumaria barbara is known by several different common names. You might know it as Wood Vamp, but it is our native Climbing Hydrangea.

Decumaria is a deciduous vine native to the Southeastern United States. Climbing Hydrangea is truly in the Hydrangea family. (Don't confuse this plant with another sharing the same common name. Hydrangea anomala petiolaris is not native to the United States but originates in Asia and blooms a little later in the season.) Decumaria barbara clings to its support with aerial roots, and it will attach itself to a tree or wall without any additional support.

Lacy  clusters of fragrant white hydrangea-like blooms smell just like fresh honey. Blooms appear in late Spring or early Summer on climbing vines. Decumaria makes a fast-growing groundcover too, but it will not bloom unless allowed to climb. Blooms are solely fertile and smell wonderful.

This easy to grow native vine is not invasive and can be allowed to climb a tree with no danger of it smothering the tree as wisteria does. The delicate aerial rootlets won't harm your tree or wall. 

Plant Native Climbing Hydrangea in shade. Decumaria barbara appreciates protection from hot sun and will bloom in full shade. It enjoys moist soil and naturally occurs in the wild on the banks of streams and rivers. It will grow very quickly in rich soil if watered regularly.

Climbing Hydrangea is a good addition for wildlife in woodland gardens. The thick vines provide good cover and nesting sites for birds and small mammals. The fragrant flowers attract butterflies and other pollinators. 

Decumaria barbara is native to Georgia woodlands but can be grown anywhere in USDA Zones 7-11.

June Blooms in my Georgia Garden: Climbing Hydrangea

Every time I walk behind the greenhouse this time of year, I notice the distinct fragrance of honey. I wish you could smell it. This honey scent comes from the blooms of the large Decumaria barbara plant completely covering the pine tree it climbs. This fragrant Wild Hydrangea Vine can grow up to 30 feet!

Decumaria barbara is usually referred to as Climbing Hydrangea because its delicate, lacy blooms do look like a white hydrangea bloom cluster, and it is in the hydrangea family. This plant is also known as Wood Vamp, but I have been unable to figure out why. If you know, I would welcome your comments. 

Decumaria is a native vine found growing mostly in the Southeastern United States and can often be found on a hike through the woodland in Georgia. It can be grown anywhere in the South, since it is hardy in USDA Zones 7-11.

Do not confuse this plant with the non-native Hydrangea anomala petiolaris, which is also known as Climbing Hydrangea.

Wild Hydrangea Vine is easy to grow and can be grown as a groundcover or allowed to climb any structure. Like some other flowering vines, this Hydrangea Vine will not bloom unless it is permitted to climb. Its aerial roots will attach itself to anything from a tree trunk to a brick or rock wall, but will not damage the tree or wall in any way.

Decumaria barbara prefers part shade and is one of the few native vines that will bloom in full shade. The fact that it is usually found growing along stream banks indicates that it enjoys moist soil.

The rich green leaves look beautiful all summer and are not bothered by any pests or diseases. I would suggest it to be grown on an arbor or trellis near the patio, but it is deciduous in our climate, so there would be no foliage in winter.

Climbing Hydrangea belongs in the wildlife garden. Birds and small mammals love to hide and build nests in the lush foliage. Butterflies and other pollinators love the flowers.