Dwarf False Indigo

Dwarf false indigo is a compact, deciduous prairie shrub with fine pinnate leaves and short spikes of purple flowers. Compared with leadplant, it stays smaller, has brighter green foliage, and flowers earlier, making it useful where a low native shrub is wanted in a sunny, well-drained planting. ## Landscape use and season Amorpha nana forms an upright to rounded clump, usually about 1–3 feet tall and wide. Its small purple flowers appear from late spring into early summer, followed by small seed pods. The foliage is brighter green than that of leadplant. Use it in a native border, dry prairie planting, rock garden, or as a small accent shrub; allow room for its eventual spread rather than treating it as a ground-hugging cover. ## Siting and water Plant in full sun. It is native to central North America and occurs in dry prairies and rocky or sandy hillsides. Colorado Springs Utilities recommends it for dry sites and reports low water use after establishment; its local garden specimens have performed well at elevations up to 7,200 feet. Published hardiness estimates range from USDA zone 3 at Oregon State and Denver Botanic Gardens to zones 4–8 at Colorado Springs Utilities, so use local conditions and plant provenance when selecting a site. See [Oregon State University](https://landscapeplants.oregonstate.edu/plants/amorpha-nana), [Denver Botanic Gardens](https://navigate.botanicgardens.org/weboi/oecgi2.exe/INET_ECM_DispPl?NAMENUM=15619), and [Colorado Springs Utilities](https://www.csu.org/water-wise-plants/dwarf-false-indigo?hsLang=en). ## Maintenance Water regularly during establishment, then reduce irrigation to match rainfall and local soil. Little routine pruning is needed; remove old flower stalks if you prefer a tidy appearance.