Bought a small chrysanthemum plant bearing white flowers and some buds, almost a month ago. It sits on a West south west facing balcony which gets sun from afternoon to evening.i reside in Bangalore btw.I have pruned it a bit since I saw some buds turning dark. Now I see leaves turning brown and one stem almost turning brown and looks to be dying. Fortunately, q offshoot has come up thanks to pruning. Can someone help me identify the root cause and fix the problem possibly