In the detailed planting applications of landscape architecture, the negativities created by insufficiencies in ecological conditions and care interferences create effects that increase economical losses. On the other hand, the drought in summer is an important problem. As a result, the plant development decreases, the nutrition relations are affected negatively, plants remain weak and they can not give the desired effect, while in some cases death occurs. In planting studies that will be made in such problematic areas, mycorrhizal plants are used in order to minimize the problems. The purpose of this study was to research the survival successes of mycorrhizal and non-mycorrhizal plants in various environmental conditions and different breeding environments. For this purpose, mycorrhiza effects are experienced on Cotoneaster franchetti Bois. plants, which are preferred at landscape architecture designs because of their functional and esthetic characteristics. According to the obtained results, in groups where mycorrhiza application was made in different terrain conditions, the total dying C. franchetti Bois. plant percentage is 7.69, while the death percentage was 26.92 in the control group.