In fac ut need both, however, what is the depth you need to fill in? my previous case, I have 6-7 inch of depth, so filled in the soil as foundation and 1-2 inches of sand as top, in such a way, this will reducing the risk of your grass to die as sand do catalyst the growth of the grass and also provide good water drainage on the bed.

You are growing from seed or direct buy the grass in pieces form? because if purchase grass in pieces, the thickness already 1inch++ so according to your current situation, I am assuming your current ground base is soil one, so just need to top up 2 inches of sand + lay the grass. If you plan to grow from seeds, then different story d

Correct! Seeding method, it takes at least 6 months or above to see the satisfied results

This post has been edited by leeyung: Jun 4 2012, 05:13 PM