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Form/flower
Form/flower
| 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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