What the thread title says, really
My four foot tall Japanese acer, which is in a pot, has dieback. I bought it last year and it has always struggled. The leaves this year are smaller than they were last year.
I assumed it would need lots of watering as it is in a container, but is it possible I've over-watered it? Or has it been under-watered? It has a covering of pebbles around the base to keep the soil moist and the cats off, and the container has drainage holes.
I'm keen to stop the fungus spreading to my dwarf lilac and my honeysuckle, also container grown.
The acer was expensive, is it best to just get rid of it?