Foliage of this North American native is reminiscent of Amsonia hubrichtii and is compact and well-branched. Purple flowers appear in late summer and are loved by butterflies. Plant in average to dry soil.
Genus:
Vernonia
Species:
lettermannii
Cultivar:
Iron Butterfly
Foliage Color:
Green
Flower Color:
Purple
Flower Time:
Late season
Sun Exposure:
Sun
Soil Condition:
Average
Habit:
Upright
Mature Height:
24-36"
Mature Spread:
18-24"
Special Uses:
Native to the US
