1997 Perennial Plant of the Year. May Night blooms prolifically with deep purple-blue flowers.  Tray Size: 50 plants  Common Name: Meadow sage  USDA Hardiness Zone: 3 - 9  Mature Height: 24 inches  Color:...

2000 Perennial Plant of the Year. 'Butterfly Blue' got its name for a reason - gorgeous 2 inch lavender blue flowers bring the butterflies to gardens and containers. Reaches 12 to 18 inches at maturity. Mounds of foliage are blanketed with long-blooming...