is nemesia a perennial
Cheery nemesias glow with color in cool conditions. Extended, cool summers and mild winters offer conditions ideal for nemesia (Nemesia spp.) Tidy, colorful nemesias are perennial in U.S. Department of Agriculture plant hardiness zones 9 and 10, and annuals elsewhere.With sporadic shearing, the 10- to 18-inch plants bloom from spring to fall.heery nemesias glow with color in cool conditions. Extended, cool summers and mild winters offer conditions ideal for nemesia (Nemesia spp.) Tidy, colorful nemesias are perennial in U.S. Department of Agriculture plant hardiness zones 9 and 10, and annuals elsewhere.