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False Indigo, Indigo-bush, Bastard Indigo, Indigo-bush Amorpha
Amorpha fruticosa

Fabaceae (Leguminosae)

False indigo has lacy, dark-green compound leaves with 11-27 leaflets, and showy spikes of 3 inch- to 6 inch-long purple flowers with golden anthers. It can grow to 10 feet high and 5 feet wide. Although it is naturally a dense and many-branched shrub, it can be pruned into a tree form. False indigo is common in the eastern half of the U.S., growing on moist soils of streambanks and waterways, and has been used in erosion control and wetland mitigation. It will tolerate drought as well as poor drainage, but needs occasional deep irrigation in dry months. A. fruticosa is a very variable species, and many forms and varieties have ben identified, including 'Dark Lance,' a selection of the variety angustifolia that Benny Simpson developed for nursery production.

Plant Habit or Use: medium shrub

Exposure: sun

Flower Color: blue - purple with orange anthers

Blooming Period: spring

Fruit Characteristics: dark pod with gland-dots

Height: 5 to 10 feet

Width: to 5 feet

Plant Character: deciduous

Heat Tolerance: high

Water Requirements:

Soil Requirements: adaptable

USDA Hardiness Zone: 4

Additional Comments:

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