Design and Development of a Roof Garden
- Design Parameters -
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Lastly, maintenance can be simplified if plants are selected for their zonal hardiness, for their resistance to wind and human abuse, for their noninvasive root systems, and for their reliability in not exceeding a specified size. There are few ornamental landscape plants used in the world, which will not grow in well-designed roof gardens in their own locality. However, just as designers must carefully choose plants for the specific microclimate, soil, and other habitat conditions found in ground level landscapes, so we must exercise sound judgment in selecting plants for roof landscapes.

KEY POINTS: Maintenance

• Plant should be under professional care and maintenance and checked on a regular basis.
  
• Monitor irrigation systems regularly and monitor soil fertility
  
• Special attention must be give to maintaining the balance between foliage area and root mass.
  
• All planted areas should receive annual topdressing to replenish soil.