Stunning semidouble, large dark blue flowers all season, fertilize often.Self-cleaning, no deadheading necessary. This isn't necessarily true of all Petunias. You may want to remove old blooms of double varieties since these larger flowers will sometimes remain on the plant. Leaving the flowers on the plant won't affect flowering. Exposure - Plant in sun or partial shade. Height 6-10". Spacing 8-12".Hardy Temp 30°F (-1°C). Use in hanging baskets, window boxes, landscaping and combination planters.