Do you need to bury the wire in the ground?

No. The wire can be laid upon the ground using the supplied staples and will after some weeks be grown over and will blend well into the grass. A good tip is to cut the grass as short as possible at the perimeter in order to get the wire as close as possible to the ground. However, if you wish to bury the wire from the beginning, you can, the suggested depth is 1-6 inches.