Bloom Color
Exposure
Height
Soil Type
Other Attributes
NARROWLEAF IRONWEED
Vernonia lettermannii ‘Iron Butterfly’
Beautiful, threadleaf foliage on shorter plants. 2′ tall. Purple flowers. August – September. Showy seed heads add tremendous winter interest. As seen on the High Line! Full sun. Moist and drought tolerant. Attracts hummingbirds & butterflies. Native to Arkansas. Zone 4.