The Madagascar periwinkle (Catharanthus roseus), also known as rosy periwinkle, is a flowering plant prized for both its ornamental beauty and medicinal properties.
🌿 Botanical Description
Scientific Name: Catharanthus roseus
Family: Apocynaceae (dogbane family)
Common Names: Madagascar periwinkle, rosy periwinkle, vinca, old maid
🌱 Plant Characteristics
Type: Evergreen herb or subshrub
Height: 30–100 cm (1–3.3 feet)
Stem: Erect or spreading; green to reddish in color
Leaves:
Opposite arrangement
Glossy, dark green, oblong to oval
2.5–9 cm long
Prominent central vein
🌸 Flowers
Color: White, pink, rose, or mauve with a contrasting "eye" in the center
Shape: Five petals, symmetrical, star-like
Size: About 2.5–5 cm in diameter
Blooming Season: Year-round in tropical climates; summer in temperate areas
🌾 Fruits & Seeds
Fruit: A pair of cylindrical follicles containing numerous tiny seeds
Seed Dispersal: Naturally by wind or self-sowing
🌍 Habitat & Cultivation
Native to: Madagascar
Grows in: Tropical and subtropical regions around the world
Soil: Well-drained, sandy or loamy
Sunlight: Full sun to partial shade
Watering: Drought-tolerant; prefers moderate watering
⚕️ Medicinal Importance
Contains alkaloids like vincristine and vinblastine
Used in chemotherapy drugs to treat leukemia and other cancers
Traditional uses include remedies for diabetes, hypertension, and infections
⚠️ Toxicity
All parts of the plant are toxic if ingested in large quantities
Keep away from pets and small children