For larger containers, just lay them on their side, rap on the sides and pull the container off. You can also cut the container off. These container grown roots tend to grow in circles. So before planting take a knife and make 4 or 5 vertical cuts down the roots to get them growing out again. Then it's ready to go in the hole.
Water is absolutely essential for new plants.
You can read a short description of the tape and find out how to order it by linking to its section in the Hometime Store .