Grows in western U.S. to Canada and is equivalent to common milkweed in the east. If you want to plant tropical milkweed just soak the seeds in water for 24 hours to soften the seed coat and then direct plant outdoors in the garden or a pot…good luck!

  • Hello!
    I have a friend who said he could give me some common milkweed seeds from the plants in his backyard. It produces small clusters of white and pink flowers. It's also an important Host Plant and Nectar Source for Spring Monarch Butterflies." We are currently growing its closest milkweed relative, Gomphocarpus fruticosus (swan milkweed), and that variety does seem to have more aggressive tap roots…go figure!

    I had for two years sulivant, syriaca, tuberosa, purpurascens, speciosa and they never bloom, and they die. Here’s more info on winter sowing:

    Winter Sowing Milkweed Seeds