False Blue Indigo (Baptisia australis)

common name:

False blue indigo, blue wild indigo

scientific name:

Baptisia

australis

Purple flowers and green leaves on tall stems in a lush, vibrant garden setting.

False blue indigo (Baptisia australis) beginning to bloom, with soft blue-purple pea-like flowers emerging above blue-green foliage on UNL’s East Campus, April 23, 2026.

Image Creadit:

Trey Lamkins, Graduate Research Assistant

False blue indigo (Baptisia australis) is a long-lived native perennial prized for its upright habit, durable nature, and striking spring display. In late spring, it produces spires of pea-like blue to violet flowers that resemble lupines and attract pollinators, particularly bees and butterflies. Its blue-green, trifoliate foliage adds soft texture throughout the growing season and transitions to attractive black seed pods in late summer, which provide additional visual interest and can be used in dried arrangements.

Charecteristics

Plant type:

Herbaceous perennial

Hardiness Zones:

3, 4b, 5a, 5b, 6a, 7, 8, 9

Light Needs:

Full Sun

Water Needs:

Dry

Space Requirements:

3–6 feet

Height Requirements:

4–6 feet

Spread Requirements:

3–4 feet

Bloom Color:

Blue

Lavender

Purple

Bloom Time:

Spring

Leaf Color:

Green

Wildlife Attraction:

Butterflies

Companion Plant Tolerance:

Drought

Uses:

Naturalize

Rain Garden

Varieties