Amorpha fruticosa, commonly known as False Indigo Bush, is a deciduous shrub in the legume family with a fernlike appearance due to its fine textured pinnate foliage. It produces deep purple flower spikes with vivid orange anthers in late spring to early summer attracting a wide variety of pollinators. This adaptable native plant thrives in moist lowlands and riparian zones and is well suited to restoration, rain gardens, or naturalized borders where it can form dense colonies through suckering growth. Height & Spread: 6 - 12 ft x 6 - 10 ft Bloom Time: Late spring to early summer Light Requirements: Full sun to part shade Soil Preference: Moist, sandy or loamy soils; tolerates poor drainage Watering Needs: Moderate to high, especially in dry periods Deer Resistance: Generally unbothered due to bitter foliage compounds Native Status Amorpha fruticosa is native to much of the central and southeastern United States. It plays an important role in stabilizing soils in wetland and floodplain areas and is often used in habitat restoration projects. WILDLIFE & INSECTS Bees Highly attractive to a wide array of native bees, including bumblebees and leafcutter bees which feed on its pollen rich flowers. Butterflies Provides nectar for butterflies such as Monarchs and Swallowtails during its bloom period. Beneficial Insects Supports predatory insects such as tachinid flies and parasitic wasps which use the plant as a nectar resource. Birds Songbirds and waterfowl eat the seeds while the dense thickets offer excellent cover for nesting. Spacing & Landscape Use Spacing Recommendations: Plant 6 - 10 ft apart to allow for spreading by suckers and optimal flowering. Landscape Placement: Ideal for naturalized edges, wetland margins, erosion control zones, and large rain gardens where its size and suckering habit are assets. Companion Plants Cephalanthus occidentalis (Buttonbush) - Shares moisture tolerance and supports similar wildlife; its round flower heads add contrast in form. Physostegia virginiana (Obedient Plant) - Late summer blooms and upright form complement Amorpha’s early flowering and loose texture. Rudbeckia laciniata 'Herbstsonne' - Tall yellow blooms emerge after Amorpha flowers fade providing seasonal succession and pollinator value. Verbena hastata (Blue Vervain) - Spiky blue flowers mirror Amorpha’s upright habit and extend pollinator interest through summer. Carex stricta (Tussock Sedge) - Grasslike clumps anchor the base of taller shrubs and help retain soil in wet habitats.
