Vernonia acaulis
An Asteraceae perennial herb native to the Southeastern United States, forming a basal rosette and sending up 3–4 ft tall flowering stalks with intense purple blooms from late June to August, thriving in dry, well-drained soils along woodland edges and highly attractive to bees.
Common Names
Ironweed, Stemless Ironweed
Summary
Stemless ironweed is a perennial native to the southeastern United States, with Georgia, North Carolina, and South Carolina among its confirmed locations, it forms a basal rosette of leaves, with stems 36 to 42 inches tall rising from the center, and blooms in late summer with saturated violet colored flowers, rusty colored seed clusters highlight its ironlike character, it tolerates full sun to partial shade and prefers well drained to dry, sandy soils, with an adaptable soil pH and average to dry moisture, hardy in USDA zones 6 to 9, it fits into meadow and woodland landscapes alongside other late summer bloomers such as blue-stemmed goldenrod, narrowleaf silkgrass, aromatic aster, and black-eyed Susan, providing color when many perennials have faded
Lifecycle
Perennial
Height
36 inches
Spread
1-3 feet
Hardiness Zones
Zones 6-9
Sunlight Requirements
Ideally full sun to partial shade.
Soil Type
Well-drained to dry, sandy soils
Soil Drainage
Well-drained to dry soils, preferably sandy.
Soil pH
Tolerates a range of soil pH
Bloom Color
Purple
Bloom Time
Summer
Foliage Color
Green
Fall Foliage Color
Green
Leaf Lifecycle
Deciduous
Growth Rate
Medium
Seasons of Interest
Summer and Fall
Propagation Methods
Seeds
Attracts Wildlife
Attracts bees, hummingbirds, butterflies, other pollinators, and birds
Taxonomy
- Taxonomic Rank
- Species
- Author
- Walt.
- Publication
- Bull. New York Bot. Gard. 4: 22. 1906
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Asterales
- Family
- Asteraceae
- Subfamily
- Vernonioideae
- Tribe
- Vernonieae
- Genus
- Vernonia
Synonyms
Cacalia acaulis Chrysocoma acaulis Vernonia oligophylla var. oligophylla Vernonia oligophylla Chrysocoma acaulis