Before you decide which species of tree to plant, it is very important to know how well your soil drains internally. Dig a hole that is one foot square and one foot deep. Fill it with water and leave it overnight to drain. Fill the hole with water again the next morning, and measure the level drop per hour. Setting a ruler into the hole and checking the drop hourly is one method. A 1"-3" drop per hour is acceptable, while a 2" drop per hour is ideal. If less [...]