Today I played little bit with this dogwood bonsai. New fresh leaves are out, not yet in full size and definitely not all over the tree. It will be much denser in few days. Sill you can see old remnants after the flowers.
There were lots of dead moss patches on top of soil. So I made quick change. When removing layers of moss and shallow layer of soil which is covering inorganic substrate underneath I find a lot of fiber roots. I knew it happens and I sure it is beneficial for the plant. Those roots will help me when I will repot this tree, maybe next spring. New fresh moss is applied. Hope it will be OK during whole season.