University of Wisconsin-Madison | Botany Plant Growth Facilities

Botanical Garden

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Genus: Lobelia Species: erinus Common Name: Edging Lobelia Family: Campanulaceae + Lobeliaceae Order: Asterales Native: Southern Africa Habit: Herbaceous Perennial Height: 0.5 to 0.75 foot Width: 0.5 to 1 foot Flowering Season: Spring, summer to Fall Flower Color: Blue, violet, purple, pink often with white or yellow throat Propagation: Seed Zone: 10-11 Note: This profuse-flowering, tender perennial is primarily grown as an annual. Edging Lobelia is suitable for edging, butterfly gardens, hanging baskets, containers, window boxes, and bedding. Plant die-back is common where the Summer temperature is exceedingly warm. Prefers sunny to partly shady, moderately dry, well-drained, organic-rich soil.