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3 plants matched your search criteria.

Vernonia glauca

Upland ironweed
A native Pennsylvania plant that is happy in ordinary to dry spots. A bit shorter than V. noveboracensis, and much more adaptable to average garden conditions. Deep purple loose upright flower clusters in August and September are attractive to people and butterflies. Help us make it less rare!
Vernonia glauca

Vernonia lettermannii 'Iron Butterfly'

Ironweed

This selection of the Arkansas native comes to us from Dr. Allan Armitage's trials at the University of Georgia. It has lovely fine foliage like Amsonia hubrichtii and is a compact, well-branched and vigorous plant. In late summer it is covered with true purple flowers that attract plenty of butterflies. Found in rocky flood plains, Vernonia lettermannii is very tolerant of hot dry locations, yet can withstand brief periods of inundation.

Vernonia lettermannii 'Iron Butterfly'

Vernonia noveboracensis

New York ironweed
Deep purple haze in damp meadows, roadsides and pastures. A lovely native that adapts well to any moist location.
Vernonia noveboracensis