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Cowitch vine, Climbing Hydrangea, Woodvamp
Decumaria barbara
Hydrangeaceae
 
General Landscape Uses: Vine or sprawling groundcover.

Availability: Rarely grown by native plant nurseries.

Description: High-climbing, deciduous woody vine, climbing by roots. Tough, brittle stems and dark green leaves 2-4 inches long. Small white flowers in showy clusters 4 inches wide.

Dimensions: Typically 5-20 feet in height.

Growth Rate: Moderate.

Range: Southeastern United States from Virginia west to Louisiana and south to Hillsborough, Polk, and Osceola counties.

Plant Map Map of select IRC data from peninsular Florida.

 Map of suggested ZIP codes from South Florida north to southern Brevard, Osceola, Polk, and Pasco counties.

Habitats: Moist to wet hammocks and swamps

Soils: Moist to wet, poorly-drained to well-drained, usually organic soils.

Nutritional Requirements: Moderate to high; grows best with some organic content and may languish in nutrient poor soils.

Salt Water Tolerance: Low; does not tolerate flooding by salt or brackish water.

Salt Wind Tolerance: Low; salt wind may burn the leaves.

Drought Tolerance: Moderate; generally requires moist soils, but tolerant of short periods of drought once established.

Light Requirements: Moderate shade to light shade.

Flower Color: White

Flower Characteristics: Showy.

Flowering Season: Late spring.

Fruit: Tiny urn-like pods.

References: Mellichamp (2020), Mellichamp 2014, Wunderlin and Hansen 2011

Comments: We have been adding data for this species for central and northern Florida and welcome any feedback or review. If you would like to contribute information or images, please contact George Gann via the IRC staff page.



Other data on Decumaria barbara available from:



 
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