This will ensure a continuous process of growth and maximize your yield potential. There is no reason to be intimidated by growing your own. Germination To start Milkweed seed we recommend starting inside, but before this happens Milkweed seeds need to go through a cold stratification period.  Source: <a href="https://redmine.thqnordic.com/issues/138429" rel="nofollow">https://redmine.thqnordic.com/issues/138429</a>