Because as they rot down they can reduce the levels of nitrogen in the soil beneath.
In my case I have used them as far too much bare soil around here for my liking, but I do feed the plants at planting time plus am trying to do annually here. I've inherited impoverished soil with this garden so any mulch is better than none.
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Why would you recommend that new bark chipping are not put direct onto beds please?
Because as they rot down they can reduce the levels of nitrogen in the soil beneath.
In my case I have used them as far too much bare soil around here for my liking, but I do feed the plants at planting time plus am trying to do annually here. I've inherited impoverished soil with this garden so any mulch is better than none.