Photo of Dalea purpurea

Dalea purpurea

Purple Prairie Clover

register or login to use the plant listPlease register or login to build your personal plant list.

Purple florets clustered around a cone-like bud bloom throughout the summer, June-August.

See Details Below


Tiny purple florets begin blooming from the bottom of the cylindrical cone, and within a 4-6 week bloom period, they complete their progression upward. Seed pods follow in the fall. Native to mid-western prairies, this unique wildflower has a long taproot offering high drought tolerance. It grows best in dry, well-drained sandy soil but is adaptable to various soil types, including clay and gravel. Prefers full sun. Purple Stalwort is a member of the Legume Family. Legumes typically have roots that form relationships with bacteria and fungus in the soil, supporting their ability to fix nitrogen, which improves the health of the enitre plant community. Purple Prairie Clover will make an excellent addition to your pollinator garden or meadow and is a lovely cut flower. Companion plants include Liatris spp., Asclepias spp.,  Allium spp., and Echinacea purpurea. It also mixes well with wild grasses including Andropogon gerardii, Panicum virgatum, Sorghastrum nutans and Sporobolus heterolepis.

Wildlife Value: Attractive to pollinators including honeybees, native bees, wasps, butterflies, skippers, moths and beetles. Is a host plant for Dogface sulfur butterfly (Zerene cesonia) caterpillars.

Plant Details:

Other Scientific Names: Petalostemon purpureum, Kuhnistera violacea

Other Common Names: Prairie Stalwort

Plant Type: Flower, Perennial

New Jersey Native: No

Bloom Times: Summer

Bloom Colors: Purple

Deer Resistance: None

Attracts Pollinators and Wildlife: Bees and Other Pollinators, Butterflies

Salt Tolerance: Unknown

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

Physiographic Region: All Regions in NJ

Soil Characteristics

Soil Type: Sandy, Clay

Soil Moisture: Dry, Moist

Soil pH: Neutral, Slightly Alkaline

Light Needs of Plant

Optimal Light: Full Sun

Light Range: Full Sun

Water Needs of Plant

Soil Moisture: Dry, Moist

Drought Tolerance: High

Size and Growth Rate

Height: 1 - 3 ft

Spread: 1 - 1.5 ft

Growth Rate: Medium