If ou mean shredding hedge clippings yes if they are deciduous not such a good idea if from conifers as they, I think, phenols in them can burn the plants. We tend to add to our bark paths and then bark over the top - saves on bark.

We do! Supposed to leach nitrogen from the soil, but never seen any problems with that. Had no trouble with mixed conifer and deciduous shreddings either. Agree about no putting pure conifer on, except under conifers.