Hello, this is my first time posting here. I have a couple of Borneo Giant Alocasia's that I've grown for a few years now. I live in Colorado at 6,000 feet. The climate is dry and arid, and while the summers can get rather hot during the day, our overnight temperatures dip about 10 degrees or so more than most zone 5 climates. Usually around 55-60ยบ or so. These are not ideal conditions for this species of plant I know, but I love them and keep trying different things every year. In the past my plants start to go dormant by about January and then they don't send up the next leaf until about the middle of June. This year to get a head start, I built a small indoor grow room and they have done pretty well. They have been sending out new leaves all during the winter. Recently however I noticed some of the new leaves that have sprouted look very ragged and sad. You can see in this photo the larger leaf in the back has some raggedness near the bottom of the leaf and then the latest two leaves are completely ragged. Any ideas on what this could be?
Thanks so much.