Cariboo™ Dark Blue Bicolor Campanula

[Cariboo™ Dark Blue Bicolor](https://www.syngentaflowers.com/ams/product/flower/70088357) is a compact, upright bellflower bred for abundant blue-and-white blooms. This interspecific Campanula flowers from mid-spring through summer and is suited to patio containers, where its mounding habit can spill slightly over the rim. ## Form and flowering Syngenta lists a garden height of 14–18 inches and width of 8–12 inches. The flowers are dark blue with a contrasting second color, and the plant is listed as pollinator friendly. Cariboo is offered as vegetative cuttings or a finished container plant and is sold for USDA zones 5a–9a. ## Growing conditions Grow in full sun. The breeder recommends it for several container sizes, from quart pots to larger patio containers. The source does not provide a specific soil or watering recipe, so use a free-draining container mix and water according to conditions rather than letting the root ball remain dry for long periods. ## Maintenance Remove spent flowers and damaged stems as needed to keep the plant tidy. Check container moisture during warm weather, when pots can dry more quickly. Follow the supplier’s growing guidance for the production form you purchase.