Allamanda
Apocynaceae
Evergreen, Shrubs, Vines
These handsome plants from tropical South and Central America tolerate very little frost and require considerable heat for proper growth and bloom; warm nights as well as warm days seem necessary. Trumpet-shaped flowers (borne nearly year-round) and foliage are both imposing. Permanent outdoor plants only in the mildest climates. Elsewhere, grow as summer-blooming potted plants; keep indoors during cold weather.
Shrubby grower to 6–10 ft. tall and wide, often with a few vining stems. Leaves are somewhat downy. Rose-purple flowers are 3 1/2 in. across. ‘Cherries Jubilee’ (A. ‘Cherries Jubilee’) has brilliant burgundy red blooms.
Can grow to great heights (over 50 ft.) as a vine; it can clamber through trees but must be tied to other supports. Often pinched back to grow as a large freestanding shrub. Leaves are glossy, leathery, 4–6 in. long. Yellow trumpets are 5 in. wide, 3 in. long.
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