University of Wisconsin-Madison | Botany Plant Growth Facilities

Botanical Garden

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Genus: Eustoma Species: grandiflorum Common Name: Prairie Gentian Family: Gentianaceae Order: Gentianales Native: Southeastern North America Habit: Annual or biennial Height: 1 to 3 feet Width: 0.75 to 1foot Flowering Season: Summer Flower Color: Blue, white, pink, purple or red Propagation: Seed Zone: 8-10 Note: This high-maintenance plant is primarily grown as an annual. It is suitable for borders, beds, containers, and flower cutting gardens. Monitor plant for stem canckers, and viruses. Prefers sunny, moderately dry, well-drained, ordinary garden soil.