Planting Milkweed Plants In The Fall. Milkweed is a hardy plant. Choose an area that gets full sun for your garden bed and plant your seeds 1 4 in 0 64 cm deep and 6 to 24 in 15 to 61 cm apart.
Fall planting is a great way to get your perennial milkweed varieties started since the seeds will need cold stratification and father winter takes care of this naturally. Fall sown seed will be naturally stratified outside. Plant them directly into the garden in spring after the danger of frost has passed.
If you prefer to skip the process of cold treating and germinating your seeds inside you have the option to plant your seeds directly in a prepared garden bed in the fall.
Fall sown seed will be naturally stratified outside. With permission from landowners you can pick milkweed seed pods this fall rather than buying seeds or purchasing plants allsup says. Cold stratification au natural. Common milkweed plants grow to about 2 to 4 feet in height with a thin vertical growth habit.