(A) Weeds Weeds control is very important. Weed can be carried to the green roof by birds. Therefore, we suggest removing weed regularly by hand.(B) Growth Conditions inspection Green roof needs to be checked regularly and carried out care and maintenance. Problems such as pest and disease can be solved or avoid through monthly inspection.(C) FertilizingPlants need nutrients for growth. Some of the nutrients are available in the soil, but some are not and these nutrients will need to be supplemented to the plants, for example, low-concentration fertilizer. Depending on the plants species selected and their growth condition, fertilizations may be required to keep the green roof in the best health possible. The amount of fertilizer added to the plants on the panel will be on the mid to low fertilization level to control growth. (D) Trimming Trimming back over-growth of the plant species on the green roof will help to preserve the healthy, beauty and longevity of the plants.(E) Disease and Pests inspection I) Diseases:Each disease has different treatment options, which will be explored upon detection.II) Pests:The various pests that exist vary greatly per the plant selected for the green roof. Pests can usually be controlled using environmentally friendly options if caught early. However, should the problem be exasperated beyond natural solution control, a chemical treatment will need to be applied in order to prevent pests from destroying the entire green roof. This is a last resort however; often the pests will not harm the system to the extent that makes this necessary and will die out through winter