I grow this pink cosmos from collecting seed heads last year! I have to say that they did wonderfully in pots along the side of my house. A little whimsy, but blooming beautifully!
I was hoping that the stems would grow thicker since the pots had limited depth, but it was not so. They grow very tall and couldn't withstand this year constant wind and rain. So the majority of the stems fall over the place.
~~Life is made up, not of great sacrifices or duties, but of little things, in which smiles and kindness, and small obligations given habitually, are what preserve the heart and secure comfort.~~Humphry Davy