Early in June, I planted pink mully grass on a gentle slope in my front yard. We have had a lot of rain over the past several weeks, but the grass is planted in a well drained area. Over the past few weeks, I have noticed that the grass is turning brown near the base of the plant. It seems to be getting worse. I am afraid that it will die. Please tell me what I need to do to get it to be healthier and thrive in my yard! Is this normal for the plant to turn brown? The upper part of the plant is still green, but I'm afraid if this continues that it will die. What can I do?