|Germination Temperature||Planting Depth||Days to Germination||Plant Spacing||Row Spacing||Sun|
|65-80||1/4"||14-28||12"||12-24"||Partial to Full|
Cold stratification required. Sow outside in fall or up to 2-4 weeks before average last frost. Start indoors in spring by placing seeds into a bag of moistened seed starting mix or wet paper towel and place it in the refrigerator for 3 weeks, then sow outdoors after frost.
Cold stratification is important for good germination and growth. The purpose is to trick the seeds into thinking they've been through winter.
Milkweed seed requires some light to germinate. Cover the seeds lightly with about ¼" of soil or less, or try surface sowing.
Milkweed stems and leaves exude thick, milky sap when broken. This sap can irritate the skin, so if you’re handling milkweed, wear gloves and wash your hands afterwards. The pods and other parts are edible, and American Indians used the plant for medicines.