There's a composting company close by me that sells various types of compost at around $30/cubic yard. Most of my beds around my property are perennials and foundation plantings of evergreens. Last year I only used mulch in these areas. I'd like to incorporate some compost just to be a bit more organic and maybe not have to use any or much fertilizer.
My question is, this company has a fine ground "black gold", a manure, and a blend of the two.
In your opinion what would be best for just placing on top of these beds, I will not be tilling much if at all.