I would not use compost or any organic matter, as an additive to soil.

This will encourage dampness and thus moss. Also as the organic part
decomposes the ground will sink slightly.

Just go for plain old soil, if its clay based then add sharp sand.

Do not use any FYM as this can burn the tender roots.

I buy premixed builders bags of soil for turf laying from our local
quarry at about £30 who mix our local soil with sharp sand.


No expert, but it probably should be "loam" - a mixture of soil and
compost. If you've got really good quality organic rich topsoil then
that's probably OK. make sure it's free draining. I add sharp sand
to mine too but again I'm no expert.