I like this milkweed because it isn't big like other milkweeds.  It mostly grows in shorter singular stalks that are topped with delicate white flowers and narrow leaves.  It will spread and send up more shoots each year.  It is easily contained by pulling or digging the shoots.  I like to grow it in between other milkweeds because it will fill in empty space.  
I only have a few second year plants of this species.