PlotPal

Common Milkweed

Common Milkweed is listed botanically as Asclepias syriaca. It may also be listed as silkweed, silky swallowwort, virginia-silk, kansas milkweed. Tall North American native perennial with fragrant pink-purple flower clusters. Common milkweed is a host plant for monarch caterpillars and also supplies nectar for many pollinators. PlotPal's canonical care record lists full sun and lower water needs. The current taxonomy reference places it in the genus Asclepias and in the family Apocynaceae. Its source-backed growth habit is listed as forb/herb. PlotPal currently carries Common Milkweed as an outdoor growing and flower reference. Recorded garden roles include native, pollinator, host plant. Growing note: Plant in full sun where it has room to spread by underground rhizomes. It tolerates lean soils once established, but young plants benefit from regular moisture during their first season. Propagation or sowing note: Direct sow outdoors after natural winter cold, or cold-stratify seed before spring sowing. Plant-health prevention note: Give plants airflow, avoid prolonged leaf wetness, and remove badly diseased debris at the end of the season. Pest-prevention note: Tolerate moderate insect activity on this wildlife plant. For heavy aphids, use a firm water spray and avoid broad-spectrum insecticides that could harm monarch caterpillars and other beneficial insects. Common pests in the reference include Milkweed aphids, Milkweed bugs, Spider mites. Common plant-health issues in the reference include Leaf spot, Rust, Powdery mildew. Use this guide as practical growing context, then adjust decisions to the actual weather, soil, container or bed, variety, and conditions in your garden.