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Drummond's Clematis, Old Man Beard
Scientific Name: Clematis drummondii Torr. & Gray
Family: Ranunculaceae
Drummond's Clematis, Old Man Beard (Clematis  drummondii)
Clematis drummondii, photo by Clarence A. Rechenthin. Courtesy of USDA NRCS Texas State Office
Recommended Temperature Zone:
USDA: 8-10

Heat Tolerance: very high

Sun Exposure: Full sun to part shade

Origin: Sonoran Desert, Chihuahuan Desert: USA (Southwestern Oklahoma, western Texas, New Mexico, Arizona), Mexico, in dry washes and canyons

Growth Habits: Climbing deciduous semi-woody vine, up to 25 feet long (7.5 m); glabrous to pubescent stems; pinnately compound leaves with 5 to 7 leaflets variable in shape and size but in general lance-shaped, margins with coarse teeth, up to 1.4 to 3.2 inches long (3.5-8 cm), 0.4 to 2 inches wide (1-5 cm).

Watering Needs: Little water, needs good drainage


The species epithet is named after the Scottish explorer Thomas Drummond.

Blooming Habits:
The Texas Virgin's Flower is dioecious. It bears white to cream-colored flowers, paniculate and usually numerous, about 2 cm (0.8 in) across, in spring and summer.

Fruiting Habits:
The female plants bear the fruits: achenes with very showy persistent plumose styles, 4-8 cm (1.6-3.1 in) long

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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