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Intermediate Periwinkle

Vinca difformis

Also called Intermediate Periwinkle [plant]

Intermediate Periwinkle
Photo: Pere prlpz, CC BY-SA 2.5

Vinca difformis is an evergreen subshrub that forms low mats with whitish-blue flowers from late winter to early spring. Grow it in mild, partly shaded to sunny sites with moist, well-drained soil.

Family
Apocynaceae (Dogbane family)
Grows as
Shrub
Light
Part shade, Full sun
Water
Water regularly during dry spells, letting the top layer dry slightly between waterings.
Soil
Moist, well-drained soil; tolerates a range of soil types.
Temperature
10–25 °C; tolerates light frost, protect from hard freezes.
How easy
Easy
Safety
Toxic: All parts contain alkaloids, including vincamine and vincristine-type compounds, which can cause nausea, vomiting and heart effects if eaten.
Native range
Azores, W. & C. Medit.
Climate
temperate

About

Vinca difformis, commonly called the intermediate periwinkle, is an evergreen, flowering subshrub.

It grows to about 0.5 metres (1+1⁄2 ft) tall, and forms mats over 1 m (3+1⁄2 ft) across. Its whitish-blue flowers have a blooming season from late winter to early spring.

Other Vinca plants

Herbaceous periwinkle · Greater Periwinkle · Lesser Periwinkle · Periwinkle

Text excerpted from the Wikipedia article Vinca difformis 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.

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