Amorpha fruticosa, commonly known as False Indigo, is a native deciduous shrub found throughout much of the eastern and central United States, especially along rivers, wetlands, and floodplains. This fast-growing shrub typically reaches 6 to 10 feet tall and wide and is valued for its upright form, soft green pinnate foliage, and striking spikes of deep purple flowers accented with bright orange stamens. Blooming in late spring to early summer, False Indigo provides strong ornamental interest while thriving in moist soils and challenging conditions. Its adaptability makes it useful in naturalized plantings, restoration projects, and larger landscape settings.

Why choose False Indigo

• Native shrub: Naturally occurs across much of the eastern and central U.S.

• Unique blooms: Purple flower spikes with orange accents stand out in spring

• Moisture tolerant: Performs well in wet soils and floodplain environments

Cultivating tips

• Sun exposure: Full sun to part shade

• Soil needs: Prefers moist soils but adapts to a range of conditions

• Maintenance: Low—prune in late winter if size control is needed

Designs for your garden

• Naturalized landscapes: Ideal for riparian zones and restoration plantings

• Large borders: Provides structure and height in mixed shrub plantings

• Wildlife gardens: Adds seasonal interest and habitat value

Ecological benefits

• Native value: Supports pollinators and native insects

• Soil improvement: Nitrogen-fixing roots help enrich surrounding soils

• Wildlife support: Provides cover and nectar resources