Native to the tropical Americas. Showy, trumpet-shaped flowers are borne in rounded clusters that become larger and more profuse as trees mature. Leaves are typically green; may be simple (undivided) or divided into as many as seven leaflets arranged like fingers of hand. Number of leaflets is often variable within a species.
These trees tend to be gangly or irregular when young; benefit from training in early years. Need well-drained soil; respond well to regular fertilizing. All are useful as color accents and as stand-alone flowering trees for display. Larger types are excellent as street or park plantings; smaller species make beautiful patio trees or container plants.
T. caraiba. Semievergreen. Grows 1525 ft. high and 1015 ft. wide, with a dense, usually asymmetrical crown. Silvery leaves are divided into narrow leaflets. In late winter, just after leaf drop, the tree is covered with 2- to 3-in.-long golden yellow flowers.
Golden Trumpet Tree
T. chrysotricha. Briefly deciduous. To 2550 ft. high and wide. Young twigs, leaf undersides covered with tawny fuzz. Golden yellow flowers are 34 in. long, often with maroon stripes in throat. Blooms most heavily in spring, when tree loses leaves for brief period. May also bloom lightly at other times, when in leaf.
Pink Trumpet Tree
T. heterophylla. Evergreen to semievergreen. Slender habit to 40 ft. tall, 20 ft. wide; sometimes grown as a large shrub. Flowers 23 in. long, in colors ranging from pinkish purple through pink shades to white. Blossoms appear abundantly in spring but may also be seen occasionally throughout the rest of the year.
T. impetiginosa. Semievergreen. Slow to 2550 ft. high and wide. In late winter or spring, bears 2- to 3-in. flowers in white to light pink and purple. May rebloom in late summer or fall. Does not bloom as a young tree.