Life Span: long-lived perennial
Size: Height: 2-5 ft Width: 2-4 ft
Phenology: winter dormant
Noted for: Showy flowers
Recommended Uses: Treat as a small shrub or use as a background plant in a wildflower garden. Can make a nice but tall border plant. Its flowers are more visible if planted against something that gives them contrast such as a dark fence.
Assets of White Wild Indigo include its long racemes of white flowers and its leafy, rounded foliage.
Considerations: Toxic to livestock and humans.
Propagation: Seed (scarification beneficial but not required) or division of roots at the crown. Not tolerant of root disturbance once its root system has become established, so best planted as seed or small potted plant where is to remain. Requires several years to reach maturity.
Seeds are available through the Florida Wildflowers Growers Cooperative
Availability: Native nurseries, FNPS plant sales
Salt Tolerance: Not salt tolerant
Soil or other substrate: Sand, clay, loam
Soil pH Range: Acidic to circum-neutral
Larval host for wild indigo duskywing (Erynnis baptisiae) and Zarucco duskywing (Erynnis zarucco) butterflies. Deer and rabbits browse the foliage, and as a legume it provides nutritious, protein-rich food. The plant is adapted to withstand browsing because of its large tuberous roots.
Native Habitats: Sandhill
Distribution and Planting Zones
USDA zones are based on minimum winter temperatures
Suitable to grow in:
Other Comments: This plant is a legume and its roots have nitrogen-fixing nodules on them. It is useful on nutrient poor soils.