Catharanthus pusillus (Murray) G.Don
Tiny Periwinkle, Tiny Vinca
Lochnera pusilla, Vinca parviflora, Vinca pusilla
Bloom Time: July to August
Catharanthus pusillus is a small, erect, annual herb up to 8 inches (20 cm) tall, with several quadrangular branches, spreading from the base. The leaves are oppositely arranged, lance-shaped, up to 3.2 inches (8 cm) long, with rough margin. The leaf base narrows to a tiny stalk. The flowers are small, white, periwinkle-like and appear singly or in pairs, in the upper leaf axils. They are tiny, up to 0.3 inches (8 mm), flat, with 5 petals. The seed pod is very slender, up 2 inches (5 cm) long, straight, pointed.
USDA hardiness zone 10a to 11b: from 30 °F (−1.1 °C) to 50 °F (+10 °C).
How to Grow and Care
Madagascar Periwinkle is native to Madagascar but is cultivated and naturalized in most of the tropical world and in warmer climates in the United States. It can be found in a variety of woodland, forest and grassland locales, but one of its primary uses is a bedding plant in highway medians or commercial landscapes. Madagascar Periwinkle also makes a striking clumping plant for home gardens as ground cover, in beddings or edgings or in containers.
Unlike many other plants, Madagascar Periwinkle is best suited for poor, well-drained soil and may even fail to thrive in soils that are too fertile. These plants need regular moisture but don't do well with overhead watering. Madagascar Periwinkle is easily propagated with semi-ripe cuttings planted in light compost with bottom heat and high humidity, or by seeds kept in the dark at 71 to 77 degrees Fahrenheit (22 to 25 degrees Celsius) until germination. The leaves may curl during the heat of the day but recover with evening dew. The flowers drop off after blooming and don't require deadheading… – See more at: How to Grow and Care for Madagascar Periwinkle (Catharanthus roseus)
Native to India.
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