08/03/2013 at 10:18
I once had a garden where lily of the valley had become a weed. But, then, I suppose weeding is just part of gardening, the process of choosing which plants one chooses to allow in one's garden.
I have read that it is best to plant them where their roots are confined and they can't spread too much and that they do fine in pots. i have no personal experience of this. They like moist soil and don't mind quite deep shade, but also survive in sun.