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Red Milkweed

Asclepias rubra

Last reviewed: June 2026

Red Milkweed (Asclepias rubra)
Photo: peganum from Henfield, England / Wikimedia Commons (CC BY-SA 2.0)

Red Milkweed is toxic to dogs and cats.

Listed as toxic by the ASPCA Animal Poison Control Center (last reviewed 2026-05-21). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435and your veterinarian's emergency line.

Pollinator Patch flags toxic plants so you can choose a pet-safe native alternative for your yard.

Light

full sun

Water

medium

Size

12"–36" H × 12"–24" W

Bloom

Jun, Jul, Aug

Native to

AL, DE, FL, GA and 10 more states

Pollinators

bees, butterflies, moths

Browse plants for this ecoregion

Red milkweed is a compact native perennial that produces clusters of bright red-orange flowers from June through August. It grows 1-3 feet tall with a neat, upright habit and attractive narrow leaves that provide structure throughout the growing season.

In an HOA neighborhood

Red Milkweed is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

  • Dies back completely in winter
  • May self-seed in optimal conditions

Wildlife value

Host plant for monarch butterfly.

This plant is essential for monarch butterflies, serving as both a host plant for their caterpillars and nectar source for adults. It also attracts native bees, moths, and other beneficial pollinators with its vibrant summer blooms.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Pollinator Patch flags toxic plants like Red Milkweed and shows pet-safe natives for your ecoregion instead.