Amorpha nana (Fragrant False Indigo, also called Dwarf Wild Indigo) is a small native shrub prized for its compact size and noticeably fragrant purple flower spikes.
Site Selection
Sunlight: Full sun.
Soil: Well-drained, tolerates dry, rocky, or sandy soils typical of the Great Plains.
Planting Outdoors
Sow in fall for natural cold stratification, or scarify and cold-stratify seeds before spring sowing. Sow 1/4 inch deep and space plants 2-3 feet apart to allow for mature spread.
Starting Seeds Indoors
Scarify seeds (nick the seed coat) and cold-stratify for 60-90 days before sowing indoors, 6-8 weeks before the last frost.
Stratification & Scarification
Both scarification and cold-moist stratification (60-90 days) are recommended to improve this legume's germination.
Watering
Water during establishment; once mature, very drought-tolerant.
Maintenance
Low-maintenance nitrogen-fixing shrub; prune lightly in late winter if desired.
Additional Notes
Native to the Great Plains. A compact, fragrant relative of Lead Plant (Amorpha canescens), well suited to pollinator gardens with limited space.