I did some hardscape (technical term from diynetwork.com). - Set some native slabs of rock on the vertical to form a terrace-like edging for a new plant bed, and applied mortar in the joints and the trench for an informal footing Some of you in the know - is 48 hrs. enough time before I start putting soil over the mortar joints and the make-do footing? I did this over the week-end, and it would be nice to have it hold up as long as possible. Of course the construction technique says a lot about a sound installation, but lets not get into that The mortar doesn't feel cool to the touch this morning. All I know is this indicates that the moisture is getting out. What do ya think?