Description
Poke Milkweed (Asclepias exaltata) is a tall, graceful perennial native to rich woodlands and forest edges throughout the eastern United States and parts of southeastern Canada. It typically grows 3 to 6 feet tall, with smooth, slender stems and large, opposite leaves that are lance to ovate-shaped, tapering at the ends. From late spring to mid-summer (May to July), it produces loose, drooping clusters of fragrant, star-shaped flowers that are white to pale green with hints of purple. The flowers are borne on long stalks that rise above the foliage, giving the plant an airy, elegant appearance.
Unlike many milkweed species that prefer sunny prairies, Poke Milkweed thrives in part shade to dappled sunlight and moist, well-drained soils rich in organic matter. It is naturally found in open woodlands, wooded slopes, and streambanks, making it an excellent choice for woodland gardens or shaded native plantings. Hardy in USDA Zones 3 to 7, this species prefers cooler, more humid conditions and benefits from some protection from hot, dry sun.
Ecologically, Asclepias exaltata plays a critical role as a host plant for Monarch butterfly (Danaus plexippus) caterpillars, which feed exclusively on milkweed foliage. Its flowers are also an important nectar source for a variety of native pollinators, including long-tongued bees, butterflies, and moths. Its ability to thrive in woodland settings helps extend Monarch breeding habitat into shaded ecosystems where few other milkweeds grow.
