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Big Flower Clematis

Clematis patens

Big Flower Clematis
Photo: Qwert1234, CC BY-SA 3.0

Clematis patens is a deciduous climbing perennial with large showy flowers, grown on trellises and walls. It needs its roots kept cool and shaded, with the top growth in sun.

Family
Ranunculaceae (Buttercup family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Water deeply and regularly during the growing season, keeping the root zone moist but not waterlogged.
Soil
Fertile, well-drained soil rich in organic matter, with a neutral to slightly alkaline pH.
Temperature
Hardy to about -20 °C; thrives in cool summers and cold winters.
How easy
Moderate
Safety
Toxic: All parts contain protoanemonin and related compounds that irritate skin and mucous membranes if handled or eaten.. Toxic to cats and dogs (ASPCA).
Native range
E. China to C. & S. Japan
Climate
temperate

About

Clematis patens is a species of perennial plant in the genus Clematis in the Ranunculaceae family. It is native to Japan (Honshu, Shikoku, and northern Kyushu) and Northeast Asia. It usually grows on the edge of forests. It is also planted for ornamental purposes.

Other Clematis plants

Rush Stem Clematis · Clematis akebioides · Alpine clematis · Goat's Beard · Evergreen Clematis · Clematis aromatica · Pine hyacinth · Bigelow's leather flower · Traveler's-joy · Satincurls · Gold Wool Clematis · Early Virgin's Bower

Text excerpted from the Wikipedia article Clematis patens 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.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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