Amorpha fruticosa

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False Indigo-bush, Bastard-indigo

Fabaceae (Leguminosae)

Plant Specifics

Size:6-12 ft tall by 6-10 ft wide
Life Span:Long-lived perennial
Flower Color:Blue, purple
Fruit Color:Brown (legume)
Phenology:Deciduous. Blooms spring-summer.
Noted for:Fall color, Showy flowers


Recommended Uses:Multistemmed shrub that can form small thickets. Plant as a screen, hedge, or background plant.
Considerations:Can become aggressive in some habitats.
Propagation:Easily grown from seed and will likely self-seed, cuttings, air layers and suckers. 
Availability:Native nurseries
Light: Full Sun,  Part Shade
Moisture Tolerance:
always floodedextremely dry
 (Usually moist, occasional inundation ----- to ----- Short very dry periods)
Moisture Tolerance: Usually moist, occasional inundation ----- to ----- Short very dry periods
Salt Water Flooding Tolerance:Not salt tolerant of inundation by salty or brackish water.
Salt Spray/ Salty Soil Tolerance:Some tolerance to salty wind but not direct salt spray.
Soil or other substrate:Sand
Soil pH:



Larval host for southern dogface (Zerene cesonia), gray hairstreak (Strymon melinus), and silver-spotted Skipper (Epargyreus clarus).

Said to attract bees, beetles, and other insect pollinators.

Native Habitats:Moist hammocks, dry hammocks, dry hardwood forests

Distribution and Planting Zones

Natural Range in Florida
USDA Zones

Suitable to grow in:
10A 8A 8B 9A 9B 

USDA zones are based on minimum winter temperatures