This evergreen vine is very tough and hard to kill. The huge potato-like tuber keeps putting out growth. It will self-adhere to a masonry wall but will not grow into it. It grows quickly once established up to 25 feet or more. Its weight will make it fall unless it's tied. Grows faster where summers are hot.
Hardy to 20F. Will lose leaves in cold.
Moderate. Needs little dry-season water once established.
Full sun, partial shade.
Tolerant, best in uniform soil.
Seasonal pruning of faded blooms. Prune back to stimulate new growth.
Messy. Hard to kill.
Three-inch tubular yellow flowers appear in spring, but not every year, depending on water.
Skinny, long seedpods appear after bloom.
Cover masonry walls, use as screen on trellises. Quick shade for west-facing walls. Needs a large space to cover.
Native of Central America. Member of the Bignoniaceae family.
Informal, Tropical, Subtropical.