Hi Hoya Hoarders! I need some advice from the Hoya experts out there. I just noticed that my Krohniana silver has some shriveled leaves. I definitely have not been over watering. I allow her to dry out completely before watering. I’ve only been bottom watering and I use filtered water from my fridge. She is located in a south facing window and gets a lot of direct sunlight. She is not directly under the air/heating vent, as the vent is on the ceiling and I have high ceilings, however, it does blow towards the window she is in and can get cool in that area. but with it being a south facing window, it also can stay warm in that area as well. With all that information, what could be causing the shriveling of the leaves?