Common Milkweed (Asclepias syriaca)
ah-SKLEE-pee-us syriaca

Buy Common Milkweed

Discover the allure of common milkweed, with its striking clusters of pinkish-purple flowers. Not only a stunning addition to the garden, but it also serves as a vital host for Monarch butterflies, creating a vibrant ecosystem right in your backyard!

Common Milkweed is a robust native perennial found across fields, roadsides, and open woods throughout eastern and central North America. It grows 2 to 4 feet tall on a stout, hairy, unbranched stem, with large opposite leaves up to 8 inches long, softly hairy underneath and bordered by a creamy-white midrib and veins. Rounded, drooping clusters of pink-to-mauve (occasionally near-white) flowers open from June through August, carrying a light, pleasant fragrance often compared to lilacs. Large warty seed pods follow, splitting open in fall to release seeds on silky white floss. It spreads readily by rhizome and by wind-blown seed, often forming sizable colonies — making it a wonderful choice for a meadow or naturalized planting, though too vigorous for a tidy border. It's the best-known host plant for Monarch butterfly caterpillars in much of its range.

Pros

• Fragrant, delicately scented pink-to-mauve flower clusters that draw bees and butterflies
• The single most important host plant for Monarch butterfly caterpillars in much of its range
• Extremely tough and drought tolerant once established
• Silky seed floss and striking seed pods add fall interest

Cons

• Sap and all plant parts are toxic if ingested, and can irritate skin or eyes
• Spreads readily by rhizome and by wind-blown seed, forming colonies that can outgrow a small border
• Best kept to meadows, prairies, or naturalized areas rather than tidy beds

Common Milkweed is the workhorse native plant behind the Monarch butterfly's life cycle across much of its range — it's often the single most productive host plant a garden or restoration can offer. It also supports a huge range of other pollinators and specialist insects, and its wide historic range and tolerance of poor soils made it a genuinely common sight before widespread herbicide use and habitat loss reduced it in many areas, so planting it helps restore a keystone relationship rather than just adding a pretty flower.

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