I live in Austin, TX. I have a rubber tree plant that's about five years old. It's not in good shape and I'm having trouble getting it healthy again. A few years back I overwatered it and the whole plant turned very droopy. Since then it's been a battle to try to get it back to normal.
Almost all the leaves have fallen off the two larger branches. There is new growth but they aren't making it very far before falling off as well.
I have it in a pot with a high drainage soil (Miracle Gro garden soil for cactus, palm, and citrus) but the soil seems to get moldy easily. I've transferred the plant to a different pot and changed out all the soil twice now. Both times the soil had a bit of white powder in it.
The plant bounced back pretty well both times and started growing new leaves. However, both times after the one or two waterings it started getting droopy again and the leaves started turning yellow and dropping off. At this point it's losing a leave or two every day.
These days, I only water it once about ever three weeks with a fairly conservative amount of water. When I do this the leaves immediately start to drop off. The pot has a drainage hole at the bottom.
I can try transferring it again but I don't know how to stop the mold from coming back.
Do I need to use a new soil? New pot? Why is the plant so sensitive to water?