Canterbury bells (Campanula medium)

Quick facts and care essentials

• Biennial
• Full sun or partial shade
• Regular watering

Another choice for an old-fashioned garden, Canterbury bells sends up leafy, 2 1/2- to 4-foot stems bearing loose clusters of bell-shaped flowers 1 to 2 inches across. Blossoms come in late spring or early summer; besides the traditional blue, colors include purple, violet, lavender, pink, and white. Space 15 to 18 inches apart.