Most US native milkweeds require a long overwintering cycle or special treatment.
So you don't have to worry about this, we have our high quality milkweed seeds available, pre-treated in the form of seed balls. These should be planted after the risk of frost and will germinate within 21 days of warm, moist weather.
If you saved your own milkweed seeds, try our growNOW! Seed Treatment kits.
We will be adding more Monarch Host Milkweed species as our testing progresses.
Western US: go with Showy Milkweed.
Eastern US: go with Butterflyweed.
California : go with Woolypod Milkweed or Showy Milkweed