B is for Buttonbush, more properly known as Cephalanthus occidentalis. I was thrilled to find this native woody shrub which will grow to about eight to ten feet because it is not only wet tolerant, it has been known to live on river banks where the water often rises enough so that the buttonbush is actually growing in the water. My garden is periodically inundated for days at a time after rain. However, I am trying to…