This study has set out to clarify the side effects of flying copters in greenhouses with a special focus on disturbances on plant growth and its vibration due to propeller turbulences. To achieve this, images of seedlings were taken then processed by image processing algorithms to find the optimum copter flying height in order to detect the finest details (leaves, stems etc.). The results hint that growth of basil plants could be significantly hindered by copter-based vibration and in case of using copters for monitoring tasks with sporadic flights, the risk of plant growth reduction is negligible. In conclusion, the side effects of using copters in greenhouses are visible on plant growth.