Mop Top™ Fountain Butterfly Bush — Buddleia alternifolia 'Mop Top'

Mop Top™ Fountain Butterfly Bush (Buddleia alternifolia 'Mop Top') is a compact shrub with weeping branches and narrow, willow-like leaves. Tiny soft purple flowers appear along its cascading growth in spring, attracting bees and butterflies.

Grow in full sun and well-drained soil. Its fountain-like habit adds a flowing shape to borders and mixed plantings.

Growing details

• Plant type: Shrub
• Mature height: 3–5 feet
• Mature spread: 3–5 feet
• Spacing: Approximately 4 feet apart
• Hardiness: USDA zones 5–9
• Light: Full sun
• Soil: Well-drained; avoid wet soil
• Flowers: Soft purple
• Bloom season: Spring
• Foliage: Narrow, willow-like leaves
• Habit: Compact with weeping branches

Care and garden use

This low-maintenance shrub tolerates a range of soils provided they drain well. Avoid wet conditions.

Use as an accent or in grouped plantings, borders, naturalized areas, rock gardens, foundation plantings, hedges, or suitably sized containers. Pair with meadow sage, daylily, or bluebeard where growing conditions suit each plant.

Image credit: Proven Winners, Mop Top™ Fountain Butterfly Bush. Plants naturally vary in appearance and may differ from the images shown.