Planting material is often lifted with a ball of earth left intact around the roots. The ball of earth after being lifted is then carefully wrapped with burlap. This process is used with large material, evergreens, and any plants that are difficult to move. The great danger of transplanting such material after it has been wrapped for three or four days lies in the fact that during this period the outer thin layer of earth on the ball becomes hard and dry. The general practice with many planters has been to plant the stock without further care after removing the burlap. In the course of a few months the plant dies. Loss is due to insufficient moisture reaching the outer coating of the ball to loosen it, and thus necessary water cannot reach the roots, which have become sealed inside the hard coating. The best practice with all plants which have been "balled and burlapped" is to immerse the ball in water for a short time in order to thoroughly loosen the dirt in this outer coating before transplanting. It is never advisable simply to slit the burlap with a knife without removing the covering entirely and soaking the ball with water before transplanting. Place the plant in the hole where it is to be planted, then cut the binding and remove the burlap very slowly and carefully, exercising caution to avoid disturbing the ball; then partially fill the hole with water.