photo of Baptisia australis

Baptisia australis

Blue Wild Indigo

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Blue Wild Indigo is a tall, bushy perennial with lupine-like, purple flowers, which bloom May-June. The flowers are borne in clusters at the top...

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Description:

Blue Wild Indigo is a tall, bushy perennial with lupine-like, purple flowers, which bloom May-June. The flowers are borne in clusters at the top of tall stems, which extend above a mound of blue-green foliage. The flowers are followed by inflated seed pods, which turn black when ripe; loose seeds inside the pods make a rattling sound when shaken. The stems with the seed pods are used in dried floral arrangements. Traditionally, this plant was used to make a natural dye. It tolerates both drought and poor soils. Use Blue Wild Indigo as an accent plant to add vertical texture to the garden, or plant it in small groups in the back of borders. It can also be used in meadows and pollinator gardens.

Plant Details:

Other Common Names: Blue False Indigo

Plant Type: Flower, Perennial

New Jersey Native: Yes

Deer Resistance: High

Attracts Pollinators and Wildlife: Butterflies

Salt Tolerance: Low to None

Hardiness Zone: 6a, 6b, 7a, 7b

Physiographic Region: All Regions in NJ

Grows in Special Ecoregions: Barrier Island/Coastal

Soil Characteristics

Soil Type: Loam, Organic, Sandy, Clay

Soil Moisture: Well-drained

Soil pH: Slightly Acidic, Neutral, Slightly Alkaline

Light Needs of Plant

Optimal Light: Full Sun

Light Range: Full Sun, Partial Shade

Water Needs of Plant

Soil Moisture: Well-drained

Drought Tolerance: High

Size and Growth Rate

Height: 3 - 5 ft

Spread: 3 - 4 ft

Growth Rate: Slow