Butterfly Weed (Asclepias tuberosa)

Butterfly Weed (Asclepias tuberosa)

Butterfly Weed is the showiest of all native milkweeds — a drought-tolerant prairie perennial that blazes with intense orange flower clusters from June through August, drawing monarchs, swallowtails, fritillaries, and dozens of native bee species to its blooms. Unlike most milkweeds, it thrives in dry, well-drained soils, making it the milkweed of choice for upland gardens, roadsides, and prairie restorations across Louisiana.

Botanical Profile

• Family: Apocynaceae (Dogbane family)
• Native Range: Eastern and central North America from Maine to Florida and west to Colorado; native to Louisiana upland prairies, roadsides, and dry woodland margins
• USDA Hardiness Zones: 3–10
• Mature Size: 1–2.5 feet tall
• Bloom Time: June–August
• Sun: Full sun
• Soil: Dry to medium, well-drained; tolerates poor, sandy, and rocky soils; does not tolerate wet feet

Ecological Role

Butterfly Weed is a monarch butterfly host plant and one of the most important pollinator plants in North America. Its flowers support 30+ species of native bees, multiple butterfly species, and hummingbirds. It is a larval host for monarch, queen, and gray hairstreak butterflies. Its seed pods split to release silky-tufted seeds that drift on the wind.

In the Cajun Prairie Garden

Part of the Prairie Movement Strip collection at Big Mamou Enterprises, Butterfly Weed is a plant of extraordinary ecological generosity — a monarch lifeline and a prairie jewel that belongs in every Louisiana native garden.