
Common Name: Blue False Indigo, Plains False Indigo
Baptisia australis — commonly called blue false indigo — is a long-lived, native herbaceous perennial admired for its deep blue-violet flower spikes and handsome blue-green foliage. Blooming in late spring, the pea-like flowers rise above a sturdy, shrub-like mound, followed by ornamental black seed pods that add summer and fall interest. Key features Width / spread: 3–4 ft (can reach ~4–5 ft in rich soils over time) Height: 3–4 ft (flower spikes included) Flower color: Deep blue-violet Bloom time: Late spring to early summer Foliage: Blue-green, trifoliate Form: Upright, mounded clump Life cycle: Herbaceous perennial Growing conditions Sun: Full sun (best flowering); tolerates light shade Soil: Average to well-drained; adaptable, prefers neutral to slightly acidic Water: Moderate; drought tolerant once established Hardiness: USDA Zones 3–9 Landscape use Perennial borders (mid- to back-of-border) Native and prairie plantings Specimen or focal plant Cut flower and pollinator gardens Notes Deep taproot—avoid moving once established Typically takes 2–3 years to reach full size and peak bloom Black seed pods provide structure and winter interest (can be left or removed) Excellent pollinator plant; generally deer resistant
| Plant Type: | Perennial |
| Width: | 3-4' |
| Height: | 3-4' |
| Fragrant: | No |
| Fruit | Yes |
| Growth Rate | Slow |
| Zone: | 3 - 9 |
| Deer Resistant: | Yes |
| Salt Tolerant: | No |
| Drought Tolerant: | Yes |
| Attract: | Bees butterflies birds |
| Exposure: | Full Sun |
| Bloom Time: | Late Spring, Early Summer |
| Shape: | Clump |
| Soil Type | Clay, Normal, Loamy |
| Flower Color: | Blue |
| Leaf Color: | Dark Green, Green |
| Fall Color: | Green |