1. SPACING OF TREES
Trees are gregarious in nature, i.e. they prefer growing together as they assist each other mutually in many ways. So our effort would be not only to cover more area for tree plantation but also to plant more trees in a given area.
There are two aspects of tree space: above and below the ground.
The above ground space is more obvious for e.g.. tall trees should not be placed where high tension wires are running overhead. Underground space is also as important and medium sized trees should be planted atleast at a distance of 4 metres from each other and bigger ones at 8 metres from each other and 5 metres away from buildings foundations.
2. DIRECTION OF PLANTING TREES
The trees should be planted especially on the south and south - west sides of the building. This would give shade during summers. Large growing species are particularly desirable at rearwards
3. WHEN TO PLANT TREES
The period of planting depends upon the species, region, availability of irrigation facilities, rainfall of the region, etc. Winter is the best time for planting deciduous trees as they are dormant at this period and hence less likely to suffer from damage. For evergreen and semi-deciduous trees, rainy season is the best time for planting. Trees may be planted during the following periods :
During Spring: That is January and February. At this time all the factors (especially the temperature), required for tree growth are present. Thus, this is a good time for young saplings to be planted.
At the onset of Monsoons : For most species and most areas, planting is carried out during monsoons. It is advisable to start planting work immediately after a good shower and when the ground is well moistened to the depth of planting. Thereafter any delay should be treated as loss of growing season.
4. PLANTING CLIMBERS AND BUSHES
Places where trees can not be planted can be covered with bushes and smaller plants. Another possibility is to have Climbers (plants that need support to grow), which require very little space to grow but provide a large leafy area. They can brighten up the boundary walls, arches, pillars and cover the ugly sites.
(Courtesy: Clean India)