Home Gardening Bluebeard Shrub This shrub is a treat in late summer when it bears its airy clusters of beautiful blue blooms. Its extra-easy to grow, too, laughing off all but the worst heat and drought. As an added bonus, birds and butterflies love it. Bluebeard shrub makes a great cut flower, too. Name: Caryopteris varieties Growing Conditions: Full sun and well-drained soil Size: To 4 feet tall