American Columbo (Frasera caroliniensis): Monocarpic Giant of Eastern Forests

Overview

American columbo (Frasera caroliniensis) is a remarkable monocarpic perennial native to rich woods of eastern North America. It spends years as a basal rosette of large, oblanceolate leaves, then bolts a single, towering stem 4-8 feet tall with whorls of greenish-purple, fringed flowers. After flowering and seeding, the plant dies.

Botanical Details

• Family: Gentianaceae (gentian family)
• Genus: Frasera
• Species: caroliniensis

Ecology & Cultivation

Part shade, moist, rich, well-drained soil. Difficult to transplant (deep taproot). Best grown from seed sown in situ. Flowers after 7-15 years. Spectacular architectural specimen for woodland gardens. Root used historically as a bitter tonic. Rare in cultivation; protect wild populations.