Guide to collecting and planting Milkweed seeds for Monarchs Collecting Seeds: In late summer to early fall, look for milkweed pods that have turned brown and begun to split open. The Blue Chalk Sticks Succulent Cutting Healthy Rare Live Plant Easy Care Senecio serpens Jayme Garden Faux Potted Sophora Prostrata Plant Amazon.com : Indian Strawberry Vine Seeds for Planting (100 Seeds) Duchesnea Indica Tuttifrutti : Patio, Lawn & Garden