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botanical name:
Catharanthus roseus
Catharanthus roseus © Deeproot Plant Base
common name:  Madagascar Periwinkle, Cape Periwinkle, Rosy Periwinkle
synonyms:  Vinca roseus, Ammocallis rosea, Lochnera rosea
family:  Apocynaceae
characteristics: perennial, evergreen
height: 0.90m
width: 0.90m
growth rate: medium
growth habit: bushy
leaf colour: green
flower colour: pink
main season: Summer
poison symbol poisonous or irritant
medicinal symbol medicinal
aspect: full sun, part shade
conditions: dry soil, moist soil
preferred soil pH: any
minimum temp: 7°C
USDA zone: 9 to 11
description:
Subshrubby perennial, often grown in temperate areas as an annual or house plant. Opposite glossy green leaves on stiffish stems. Single 5-petalled flowers in shades of pink, purple, red, salmon and white.

cultivation:
Best in poorish well-drained soils, in full sun or part shade. Needs reasonably warm conditions during the growing season. Not winter hardy in cool regions, but quite robust and tolerant of heat and drought once established. Usually treated as an annual.

propagation:
From seed or by cuttings

usage:
Summer bedding, containers

Although toxic and narcotic, has powerful medicinal properties and has been used to treat various ailments, including cancers.

other notes:
Native to Madagascar, naturalised in various other tropical areas.
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