Topsoil or Compost
Hi
I have 3 raised beds. They need topping up after settling with about 3/4 of a ton of material. I'm not sure whether to just chuck in pure compost, or topsoil, or a mix. Does sterilised/sieved topsoil from garden centres have any nutrients in at all? Clearly compost has plenty but it doesn't last that long.
Any help much appreciated.
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