Pouring The Planter Part 2
Pour concrete to fill about one-third of the larger nursery pot, then press the smaller one into the center of the larger one. Fill in the sides with concrete, and pound the pots onto the surface to compact and level the concrete. Add more as necessary, again pounding the pot onto a surface, until it is level and full.
Sometimes the smaller pot will try to float up. Place a couple strips of FrogTape along the top of the two pots and down the sides or adhered to the table. This helps secure it in place.