Are Vincas Perennials? Yes—But Only in Warm Climates
Yes, vincas are perennials—but only where winter temperatures reliably stay above 20°F (–6°C). In USDA Hardiness Zones 9 through 11, both Catharanthus roseus (Madagascar periwinkle) and Vinca minor (lesser periwinkle) survive year after year, regrowing from established root systems each…