Vasevine (Clematis viorna) is a woody climbing vine native to wooded areas of the eastern and southeastern United States, known for its urn-shaped purple flowers in spring and summer. It grows best with its roots cool and shaded and its top in sun or light shade, climbing by leaf tendrils.
Family
Ranunculaceae (Buttercup family)
Grows as
Climber
Light
Part shade, Full sun
Water
Water regularly during dry spells, keeping the soil evenly moist but never waterlogged.
Soil
Fertile, well-drained loam; it tolerates alkaline soil.
Temperature
Hardy in cold winters (roughly USDA zones 4-9); protect young plants from hard frost.
How easy
Moderate
Safety
Toxic: All parts contain protoanemonin, an irritant that can cause skin blistering and mouth or stomach irritation if chewed or handled.. Toxic to cats and dogs (ASPCA).
Native range
NC. & E. U.S.A.
Climate
temperate
About
Clematis viorna, commonly known as vasevine or leatherflower, is a flowering vine native to the southeastern United States. It grows in wooded habitats and bears purple flowers in spring and summer.
Where it grows
Leatherflower is found naturally from southeastern Pennsylvania and Delaware south to Georgia, and west across the Mississippi Valley to Missouri and Arkansas. It grows in mesic forests and woodlands, including wooded cliffs and the banks of streams, and in thickets. It flourishes on mafic substrates.
Text excerpted from the Wikipedia article Clematis viorna by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.