photo of Baptisia tinctoria

Baptisia tinctoria

Horseflyweed

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Horseflyweed is a bushy perennial with small, yellow, pea-like flowers blooming May-June. The flowers are borne in clusters on tall stems above a...

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Description:

Horseflyweed is a bushy perennial with small, yellow, pea-like flowers blooming May-June. The flowers are borne in clusters on tall stems above a mound of gray-green foliage. The flower nectar has special value to native bees and bumblebees. This plant is a host to moth and butterfly larvae (caterpillars), including Frosted Elfin (Callophrys irus), Dusky-winged Butterfly (Thanaos brizo), and Io Moth (Automeris io), and is the only known food source for Wild Indigo Dusky Winged (Erynnis baptisiae) butterfly larvae. Its reputation for protecting horses and mules from horseflies led to its common name, Horseflyweed. Use it in a meadow garden, sunny informal area, or in a butterfly or pollinator garden.

Plant Details:

Other Common Names: Yellow Wild Indigo

Plant Type: Flower, Perennial

New Jersey Native: Yes

Deer Resistance: High

Attracts Pollinators and Wildlife: Bees and Other Pollinators, 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, Pinelands

Soil Characteristics

Soil Type: Loam, Organic, Sandy

Soil Moisture: Well-drained

Soil pH: Acidic, Slightly Acidic, Neutral

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: 2 - 3 ft

Spread: 2 - 3 ft

Growth Rate: Medium