Butterfly bush is a pollinator-friendly plant that will welcome bees, butterflies, and birds to your garden. For a low-growing variety, try Dapper Lavender Buddleia (Buddleia davidii 'Buddaplav'). "A rounded, compact habit makes this Buddleia a perfect fit for a variety of uses," says Pullen. "Light purple flowers are formed in early summer and continue to re-bloom into the fall. Spent flowers are hidden by new blooms, reducing the need for deadheading."