University of Vermont Extension
Department of Plant and Soil Science

Perennial of the Month - May 1999

Baptisia australis

(bap-tease' ee-ah aus-tral' iss)

Common name: False Blue Indigo

Family: Fabaceae, Bean or Pea

Height x width: 3-4' tall x 6' wide, upright to spreading

Growth rate: slow

Foliage: alternate, gray-green, 3-parted compound leaves, some with stipules (small, leaf-like structures) as leaf bases, leaflets 1 ½" and ovate to oblanceolate; thick stems to ½" across

Flowers: indigo blue pea-like 1" flowers in spring up to 4 weeks, 5-many in terminal racemes

Hardiness: zones 3 through 8

Soil: well-drained, prefers deep and rich, tolerates poor and sandy

Light: sun

Pests and problems: few, voles

Landscape habit, uses: herbaceous shrub in borders, specimen, nice dark brown pods with seeds rattling inside add nice fall interest

Other interest: native to eastern U.S.; genus name from Greek bapto meaning to dip, refering to past use as substitute dye for indigo; black seed pods 1-2" attractive in fall, nice sound in the garden with seeds rattling inside

Other culture: resents transplanting, deeply rooted; may need staking if not in full sun

Propagation: seeds, division, cuttings

Sources: Sunny Border Nurseries, Kensington, CT (wholesale); many others, check your local garden stores, and online catalogs as well


 Return to Perry's Perennial Pages