Find a spot for your citrus tree that is away from other plans or grass with acceptable drainage. Check the drainage of the soil by digging a hole 3 feet deep and filling it with water; if the water drains from the hole at the minimum of 1/4 of an inch an hour, then your drainage is adequate.
Expand the hole to be at least the depth of the roots and double their width. Place your tree central into the hole and fill with regular soil. Water the tree, allow the soil to settle and spread mulch around the base of your tree.
Loosely wrap the trunk of your tree with butcher paper or paint it with a white water-based paint to protect the tree from sunburn. When the canopy of the tree develops, the tree will develop its own protection.
Water your tree as necessary so that the soil is continually moist but not overly wet. The amount of water necessary depends largely on the soil.
Place 2 tablespoons of citrus fertilizer at the base of your tree, once in the month of May and again in the months of June and July, for a total of three applications. This fertilizer treatment is suggested for the tree's first year of growth.