This color show just keeps coming right before your very eyes! Starting out light blue, the flowers grow fuller as more and more petals appear with age. At its peak, each bloom will have layers of lilac blue petals for a very double, peony-like flower. During sunny days, they open to reveal their yellow centers. Plant them along your walkway where you can admire their burst of blue every day. Product Information: Bloom Time: Late Spring Size: 12+ cm Zones: 3 to 9 Height: 40-45 cm

• Double tulips

Double tulips