Category: Rarium | Sub-Category: Perennials for Sun
Scientific Name (Genus/Species): Vernonia altissima
Family: (Asteraceae)
(P) to 8′. Tall Ironweed. Eastern North America. Loose, flattened clusters of thistle-like, purple flowers atop towering stems. Large irregularly toothed and pointed leaves. Not for the faint of heart! Blooms from late summer into autumn. Moist soil. Sun/partial shade. 3 & T1 for 3 months, then T2
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