Questions

I would like to to know how to prune my Jade ( Crassula Ovata) plant ( tree ) ideally I would prefer not to have to but it has become too big for its location. You will see from the photograph just how large it is.

I have an Aucuba which is going black, I have cut out the dead branches but the rest of the plant is now going black. Should I dig out the plant and if I do will I be able to replace it with another Aucuba? It is planted in a shady spot and was doing very well. I have attached some photographs. Seppie