Hello, For the past three months, all of my Coleus and Ivy have been turning black and drying out, starting from the bottom up. The stems emerging from the soil darken first, then the discoloration moves upward, causing the leaves to dry. I’ve always been passionate about my plants, but I’m not sure what suddenly went wrong, some are still healthy, but about half have died. I usually water them once a week and have been using pure Miracle-Gro indoor potting soil for the past three years. I’m also new to this app and exploring, hoping to find a convincing answer. Any ideas from you experienced plant lovers? I’d really appreciate the help!