Vernonia glauca

Common Name
Upland ironweed
Broad-leaf ironweed
Broadleaf ironweed
Plant Form
Herbs
Duration
Perennial
Max Height (ft)
5.0
Width (ft)
2.0 - 4.0
Growth Rate
Medium
Region
Coastal
Piedmont
Mountain
Hardiness Zone
5, 6, 7, 8
Commercially available
Yes

Photographer: Casey Harless
Licensed under: CC0 1.0 Universal
Original photo: Original photo

Photographer: Casey Harless
Licensed under: CC0 1.0 Universal
Original photo: Original photo

Photographer: Casey Harless
Licensed under: CC0 1.0 Universal
Original photo: Original photo

Additional Info

Habitat: Open woodlands, cleared forests, dry meadows, creek slopes, and roadside banks

Wildlife Value: Pollinated by insects. Attracts butterfly, bees, birds, and hummingbirds. Dead stems are used by stem-nesting bees. The dried seedheads provide winter food for birds.  

Notes: Gardeners are encouraged to cut back dead stems to 12 to 24 inches to provide nesting spaces for bees and allow the stems to remain standing until they disintegrate on their own.

Flower Color
Purple/lavender
Flower Prominence
Conspicuous
Bloom Time
Early Summer
Late Summer
Fall
Light Requirements
Full sun
Partial sun
Moisture Requirements
Moist
Soil Texture
Clay
Loamy
Sandy
Low Maintenance
Yes
Pollinators
Bees
Butterfiles
Hummingbirds
Top 30 for Pollen Specialist Bees?
Yes
Number of Pollen Specialist Bees that Rely on this Genus
12
Tolerates
Earth Sangha Inventory

Founded in 1997, the Earth Sangha is a nonprofit public charity based in the Washington, DC, region. The Wild Plant Nursery is the most comprehensive source of local-ecotype, native plants in the Washington DC region, and the region’s only facility dedicated exclusively to this type of propagation. “Local-ecotype” plants are propagated from local, wild, naturally-occurring populations and are well-adapted to local conditions and for wildlife species that depend on the local forms, such as pollinators. Inventory is updated on a weekly basis so number may not be accurate.

Pots Available Plugs Available Location Notes
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