Ampelaster carolinianus Climbing Aster is a sprawling herbaceous perennial that produces long stems and can climb to heights greater than 10 feet. It prefers to sprawl over the top of fence posts or other plants or can be located and allowed to use a trellis for its support. The side branches grow horizontally, allowing them to use adjoining plants for support of the plant structure.
It can be found growing in marshy shores, stream banks, edges of swamps, moist thickets or wet woodlands. Standing water may affect the plant’s health, so a location where good drainage can be accomplished is desirable. It will tolerate seasonal flooding.
Deadhead this plant in the fall, but refrain from any additional trimming at that time. Delaying until spring when the plant is showing signs of awakening is a better alternative.
In the late summer and fall, it produces pink to purple blooms with yellow centers.
The rapid growing-spreading habit may require frequent division.