Plant Profile: Campanula medium

Canterbury Bells is a striking biennial plant known for its tall stature and distinctive cup-and-saucer shaped flowers that bloom during the summer months. This species flourishes in conditions ranging from full sun to partial shade, preferring moist, well-draining soil and cooler temperatures. In warmer climates, it benefits from afternoon shade or filtered sunlight.

In its first year, Canterbury Bells will produce only a low-growing cluster of green leaves, which should be well mulched during winter. The following year, the plant will send up tall, upright stems adorned with its characteristic flowers, typically appearing in summer. For optimal growth, it’s advisable to plant them in groups, as this allows the plants to support one another without the need for staking; however, in particularly windy areas, staking may still be necessary. Space the plants 12 to 15 inches apart. To ensure a continuous display of blooms each year, allow some of the seed pods to mature and self-seed in the flower bed.