May night Salvia leaves turning brown, drying up.
Hello. I planted some May night salvia in April in a new bed. The past couple of days the leaves of 1/2 the plant dried up and turned brown. I cut most of it off, so you cant see much in the photo. Is this a disease or is there something I can do? I thought it might be from too much rain, but am not sure. Thanks for any help.