German iris has strong cold resistance, strong growth, beautiful leaves, elegant colors, and large and bright flowers, including deep purple, pure white, pink, lavender and other colors. It is an excellent ornamental ground cover plant and is commonly used in landscaping. Arrange in Youlite flower beds and flower borders. At the same time, it can be grown as a potted plant and is also an important cut flower material. German iris is very suitable for road greening and street gardens, parks, squares, courtyards and other places in arid cities in northern China.