ORNAMENTAL HORTICULTURE (2+1)

Drainage

• Grasses are shallow-rooted herbs and therefore, no deep drainage is necessary, but no water should stagnate in the rooting zone.


• In clayey soils, some kind of drainage must be provided. This may be done by drainage pipes or by putting a layer of broken pieces of bricks and gravel 90 cm below the surface.


• Ordinary drainage work can be carried out in conjunction with grading or leveling.