This weedy vine is native to the tropics of northern South America. Although it is an annual, it spreads quickly by self-seeding. It grows rapidly, reaching 10-20 feet, but is not sturdy and requires support to grow upright. The delicate, fern-like foliage recoils from direct sunlight but expands after sundown. 

The bright scarlet red flowers are small, blooming from early summer to fall frost, and are attractive to butterflies and hummingbirds. This plant grows in full sun in average soil and requires good drainage but adequate moisture. It tolerates deer, some drought, and both wet and dry soil conditions.