Survey your area to find the best place for your new plant to grow. Don't plant too close to structures or foundations where the roots may invade upon. Identify where your utility lines and septic tanks may be and avoid those areas.
Make your hole a few inches wider than the container that you are planting. If you have hard soil you may want to dig your hole a little wider. Dig to the depth of the plants soil that it is the container. You want the plants soil to be level with the native soil. Pre-soaking the hole will help the plant start out and can tell you something about your properties drainage.
Take care when handling the root ball. The root ball is what provides nutrients and water to the plant and must remain in tact when planting. Many other regions of the world require you to spread out the roots, but here in the desert you MUST preserve the roots or the plant will go into SHOCK or die. If the plant becomes difficult to remove from the container, simply cut away and remove the container. Start by cutting the bottom of the container off completely. Now place the plant in the hole with the cylinder of the container still on the root ball. Slice the side of the container cylinder while the root ball is in the hole and now pull away the sliced container.
Place the plant in the hole and ensure the top of the plants soil is even with the ground by using a piece of wood, shovel, or level. Remove or add soil to adjust the height. DO NOT fertilize when planting. This may burn the roots and send the plant into shock.
Give your new plant plenty of water when initially placing it into the ground as the native soil will pull out the moisture from the plants root ball. Build a berm around your plant and fill it up with water that will slowly seep into the round and provide a deep soaking for the roots. This will help the roots go deep and provide good anchoring.
Provide plenty of water for your plant for the first year. When planting a tree, water twice a week if planting in the summer and then once a week for the rest of the first year. Fertilizing can be done 3 times a year starting in mid February and every 4 months after.