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Climbing Aster

Ampelaster carolinianus

Last reviewed: August 2026

Ampelaster carolinianus, or climbing aster, is a sprawling vine that blooms from August through November with lavender, yellow-centered flowers. It thrives in full sun with medium to wet soil, often near marsh edges and swamp margins in the coastal Southeast.

Climbing Aster (Ampelaster carolinianus)
Photo: (c) Vijay Barve, some rights reserved (CC BY)

Toxicity unknown

Climbing Aster (Ampelaster carolinianus) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

medium

Size

60"–240" H × 36"–120" W

Bloom

Aug, Sep, Oct, Nov

Native to

FL, GA, NC, SC

Pollinators

bees, butterflies

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Climbing aster is a vigorous native vine that can reach 20 feet, producing masses of small white to pale purple flowers from late summer through fall. This deciduous climber needs sturdy support structures and spreads readily, making it better suited for naturalistic settings. The abundant late-season blooms provide crucial nectar when few other plants are flowering.

Growing Climbing Aster

Grow Climbing Aster in full sun and medium water. Mature plants reach 60 to 240 inches tall and spread 36 to 120 inches wide. Expect high maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Climbing Aster takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Very large mature size can overwhelm structures
  • Aggressive spreading habit may appear uncontrolled
  • Dormant winter appearance looks messy

Wildlife value

Provides essential late-season nectar for migrating butterflies and native bees when most other flowers have finished blooming. The seeds also feed birds through winter.

Common questions

How does climbing aster grow?
Climbing aster is a woody-based vine that scrambles over shrubs and fences using its long, arching stems rather than tendrils or twining growth.
When does climbing aster bloom?
It flowers from August into November, producing clusters of lavender daisy-like blooms with yellow centers late in the growing season.
What kind of light and water does climbing aster need?
It grows best in full sun with medium moisture, though it also tolerates part sun and wetter soil similar to what it experiences along marsh and swamp edges.
What pollinators visit climbing aster?
Bees and butterflies commonly visit the flowers for nectar, especially valuable since the plant blooms late in the season when fewer nectar sources are available.
Does climbing aster lose its leaves in winter?
Yes, it is deciduous and dies back to its woody base after the first hard frost, then resprouts in spring.
Is Climbing Aster HOA-friendly?
Climbing Aster takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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