Very fragrant flowers, usually lavender-blue aging to white within a day or two but remaining on the plant and giving it the appearance of having several colors of flowers at the same time; blooms from January into summer, needs rich soil, regular feeding, and does best when kept potbound. Fragrance is strongest at night.
Give filtered or diffused sunlight, keep soil evenly moist. Propagate by cuttings from new growth in spring.
B. americana, B. calycina, B. latifolia.