Add bold late-season color with Vernonia × 'Prairie Princess' (Ironweed 'Prairie Princess'), a compact ironweed selection that stands tall without flopping. You will get sturdy stems topped with rosy purple flower clusters in late summer into early fall, right when many perennials start to fade.

Plant it in full sun for best flowering, but it can also handle part sun if you want a little afternoon relief. Give it well-drained soil and consistent moisture while it establishes; once settled, it is a reliable, low-fuss perennial for borders and naturalistic plantings.

At maturity it reaches about 26-30 inches tall and spreads 30-36 inches, forming a tidy clump. Space plants about 30-36 inches apart so you get good airflow and an even, full look. The foliage stays attractive through the season and is noted for improved mildew resistance compared with many ironweeds.

Expect plenty of pollinator activity when the blooms open. Use it to extend your garden season, mix it with ornamental grasses and other late bloomers, and enjoy fresh or dried cut stems. In fall, leave some stems standing for winter structure, or cut back in late winter before new growth begins.

Specifications

• Cold hardiness zone: 4-9 (-30 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Full sun   Part sun
• Growth rate: Moderate
• Mature height: 26-30"
• Spread: 30-36"
• Tolerant of: Deer, Rabbits
• Attracts: Butterflies

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