All pits for planting shall be six inches deeper
and at least 12 inches wider than the ball of the plant.
Plants shall be set straight and firmly tamped
and then adequately watered, guyed, pruned and wrapped.
The types of backfill mixture shall consist
of 2/3 topsoil and 1/3 peat, or other materials as required by specific
plants.
The minimum caliper for trees shall be two to
2 1/2 inches.