Madagascar periwinkle is a generous flowering plant, perennial but chilly. It blooms from May to October when the plant is grown as an annual, or even all year round when grown in good conditions, as a perennial plant.
The most classic varieties feature pink flowers, but some can be white or even red. Here is a selection of beautiful current cultivars: Catharanthus roseus 'Mediterranean' and 'Lavender Blue Halo'Catharanthusroseus 'Cascade Cascade' is fast growing and resistant to disease.