- Most butterfly bushes reach a mature height of 6 to 10 feet tall; however, many cultivars vary in size. Ellen Blue, for example, is a compact cultivar that only grows 4 feet tall. Related species such as Buddleia fallowiana can grow over 15 feet tall.
- Butterfly bushes are hardy plants and grow well in a variety of environmental conditions. To maximize their height, plant butterfly bushes in locations with full sun and well-drained soil; waterlogged soils easily damage their roots.
- Butterfly bushes are highly beneficial plants to have in a home garden. The long-lasting flowers attract many animals, including butterflies, hummingbirds and insects that pollinate garden crops and flowers.
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