- Determine the type of tree suitable for your environment and purpose. Consider if the tree is compatible with the climate and take size of the full grown tree and your planting site into account. Of course personal taste is also a factor.
- Take the following factor into account to determine where you will plant: do you want shade, what will it do to the light in your house or building, do you want city noise to be blocked, are there any concrete structures that will be affected when the roots spread.
- Check if the soil is loose and can be well drained. When digging in poorly drained clay soil, it is important to avoid ‘glazing’. Glazing occurs when the sides and bottom of a hole become smoothed forming a barrier, through which water has difficulty passing. To break up the glaze, use a fork to work the bottom and drag the points along the sides of the completed hole. Also, raising the center bottom of the hole slightly higher than the surrounding area. This allows water to disperse, reducing the possibility of water pooling in the planting zone.
- Dig a hole that both not too deep and too narrow. Too deep and the roots won't have access to the oxygen required for growth, too narrow and the roots cannot expand. As a rule trees should not be planted deeper than the soil in which they were originally grown. The width of the hole should be at least 3 times the diameter of the root ball or container or the spread of the roots in the case of bare root trees. This will provide the tree with enough worked earth for its root structure to establish itself.
- If applicable first remove the container and loosen the roots, carefully using your fingers or a blunt instrument to prevent the roots form tearing. Once the tree is seated in the hole, soil is then back-filled into the hole. You can use the original soil or combinations of peat moss, composted manure, topsoil, etc. Be careful not to compress the back fill soil as this may prevent water from reaching the roots and the roots from expanding beyond the ball.
- Planting bare-rooted trees is a little different as there is no soil surrounding the roots. When purchasing bare-rooted trees, inspect the roots to ensure that they are moist and have numerous lengths of fine root hairs (healthy). Care should be taken to ensure that the roots are kept moist in the period between purchase and planting. Prune broken or damaged roots but save as much of the root structure as you can. To plant, first build a cone of earth in the center of the hole around which to splay the roots. Make sure that when properly seated on this cone the tree is planted so that the ‘trunk flare’ is clearly visible and the ‘crown’, where the roots and top meet, is about two inches above the soil level. source: http://tree-planting.com/tree-planting-4.htm