1000 ROSE CARDINAL CANDYTUFT Iberis Umbellata Flower Seeds *Comb S/H BLOOM TIME: Summer HARDINESS ZONE: 3 - 9 PLANT HEIGHT: 12 - 18" . . . PLANT SPACING: 15 - 18" LIGHT REQUIREMENTS: Sun . . . SOIL / WATER: Average Candytuft has evergreen leaves. It makes a good groundcover or looks great cascading down walls. It also handles dry conditions well in the summer months.