prairie ironweed Vernonia fasciculata Type:native plants, perennials that last Notable Traits:attracts butterflies/pollinators, great cut flowers, heirloom garden plant, midwest native, resistant: deer, resistant: disease, resistant: rabbit, tolerates clay soil, tolerates harsh roadside conditions Hardiness:Zone 3 – 7 Mature Height:3-4ft Light:sun (8+ hrs) Water:drought tolerant Bloom Color:purple Bloom Time:summer Foliage:green Description 2-4′ tall fall blooming native is topped with broad, compound inflorescences made up of many heads of reddish-purple flowers. Blooms July through September, and makes a great cut flower. Attracts butterflies. NATIVE TO THE CENTRAL PLAINS.