Climbing Hydrangea, Woodvamp

Decumaria barbara

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Decumaria (dek-yoo-MAR-ee-uh) (Info)
Species: barbara (BAR-bar-ruh) (Info)


Vines and Climbers

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Requires consistently moist soil; do not let dry out between waterings

Where to Grow:

Unknown - Tell us


4-6 ft. (1.2-1.8 m)


8-10 ft. (2.4-3 m)


USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Light Shade


Unknown - Tell us

Bloom Color:

White/Near White

Bloom Time:

Mid Summer



Other details:

Unknown - Tell us

Soil pH requirements:

5.1 to 5.5 (strongly acidic)

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us


This plant has been said to grow in the following regions:


Cullman, Alabama

North Little Rock, Arkansas

Clermont, Kentucky

Georgetown, Kentucky

Louisville, Kentucky (2 reports)

Sturgis, Mississippi

Middlesex, New Jersey

Brooklyn, New York

Hendersonville, North Carolina

New Bern, North Carolina

Devon, Pennsylvania

Christiana, Tennessee

Longview, Washington

Green Bay, Wisconsin

show all

Gardeners' Notes:


On Jan 25, 2015, sladeofsky from Louisville, KY (Zone 6b) wrote:

NOTE: the height rating here is way off. It can grow to 4' or 6' if that is how high it's supporting structure might be, but regularly climbs over 20' up trees and occasionally twice that in favorable conditions.


On Jul 1, 2014, Rickwebb from Downingtown, PA wrote:

I've seen two really big vines at Jenkins Arboretum near Berwyn, PA in se PA, climbing way up large trees in the woods. This species gets huge; over 50 feet long. It does not really harm trees and needs some kind of structure to climb. Pretty plant with shiny dark leaves and white flower clusters. Native to the South of the U.S.


On Sep 3, 2004, psychloman from Brooklyn, NY (Zone 7a) wrote:

I have had this plant growing up a wall for about five years now and this year it finally bloomed. The leaves are elegant and the vine climbs demurely and slowly; it is not at all invasive. All in all it makes a nice, dense covering for any wall you might have. I grow it in full sun.


On Aug 2, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote:

A beautiful native vine, it often is found climbing up deciduous trees or sprawling on the ground, although it must grow vertically to flower.

Ultimate height is 20-30 feet, although some vines have reached 40 feet.