Botanical name: Catharanthus roseus. Category: Seasonal. Availability across India depends on local climate and season; commonly stocked by ornamental nurseries in suitable planting months. Best season: Summer–rainy; often year-round. Mature/retail size: 20–45 cm. Light: Full sun to partial sun. Water: Low to moderate. Landscape use: beds, borders, mass planting. Care/notes: Avoid waterlogging.