Another problem, planting stuff underneath a birch tree
In my front yard is a birch tree. I am not sure what type it is, but it's the type with peeling bark. It appears to be popular, since all of the neighbors seems to also have one.
Any case, I planted several different perennials in the area underneath. So far, most of them have not done well. I planted some blackeye susan there last year. It did not return. The coreposis seems to do well, but came back sickly this year. The only plant that seemed to do well are day lilies and some form of sedium.
Is it tough to grow plants underneath this type of birch?