Cathedral Bells or Cup-and-Saucer Vine is one of the fastest-growing and most trouble-free vines you will ever grow, capable of growing 20+ feet in a single season. Its large 2-3" exotic cup-shaped blooms start pale green and mature to a deep purple. Grown as an annual in most zones (perennial in zones 9 and 10), Cathedral Bells grows rapidly and blooms like crazy from mid summer until frost. Garden pests do not disturb this amazing vine as it grows effortlessly by twining its way over a fence, trellis or any support provided.
Its spectacular blooms also fill the air with a very pleasing honey scent throughout the growing season.
To get a jump on the season and ensure a long period of bloom, it's best to start them indoors six to eight weeks before the last frost. Plant seeds in containers and keep the soil warm; use a heating cable if possible or set containers in a warm place such as on a hot water heater. Once seeds germinate, provide plenty of light. When seedlings are ready to transplant, slowly acclimate them to outdoors by gradually exposing them to stronger light over a period of about a week.Plant them in full sun unless otherwise noted; transplant carefully to avoid disturbing the roots. Provide support. Large vines, such as cathedral bells need sturdy supports.