Hi there!
Last spring I planted three blueberries shrubs (and I'm planning to add another one or two this year).
When I did I plan them I removed the original soil (rocky clay) and I put back a mix of that clay with manure, organic garden soil, sand and peat moss.
However, this winter I would like to improve it by adding a bit more of sand, peat moss and maybe then covering them with straw, pine needles and cardboard.
My question would be : to add sand and peat moss, is the classical "just on the ground" good enough or would it be necessary to dig a bit around the bush to add it a bit more in depth ?
thans
