, because all you do is dig a hole that covers the roots throughly. Place the roots in the hole and then placing soil around them will be perfect. You don't have to pack the soil, but instead just lightly pat. The roots will need adequate amounts of air, and if the soil is already moist you don't have to water them after they've been planted. Vines that get too much moisture will have to deal with flooding, which is never a good thing. Eventually you will begin to see life, and this is when the soil has to remain moist. When your vines grow longer and up your trellis, tie them to the wire mesh. It will provide your vines with the proper support needed for when the grapes come through.