Sun-loving vincas (Catharanthus) are annual periwinkles. This may confuse gardeners who also grow perennial periwinkles (Vinca spp.) that are grow in shady groundcovers. New from Proven Winners (PW)!! Soiree Kawaii® series of vincas (C. roseus) are bred by Suntory and entered the market around three years ago. I highly recommend that you include them to […]