My girlfriend has bought me a Chinese elm from the Christmas markets. It's about 10 inches tall with a thick miss over the soil, I've done as the instructions said and watered once a week with water cooled from a boiled kettle in a clean bowl with the tree placed in about an inch up the trunk for about 30 minutes. I've done this once a week but it is losing leaves fast. They are turning brown and falling off even if I blow on it. The soil seems to be quite wet. Am I over watering, under watering (can't see it being that because like I said the soil under the moss seems well damp.
What is going wrong please help me.