Except for the red leaves, the American red-leaf ash tree Purple Autumn, like the common ash tree, is salt-tolerant, drought-tolerant, waterlogging-tolerant, with few pests and diseases, and can be planted in most parts of the north and south. Especially in the Bohai Rim region and some inland cities with high soil salinization, purple autumn is a good choice for colorization. The disadvantage is that the cold tolerance is slightly poor, so if you plant in the northeast, be careful not to over-water and apply nitrogen fertilizer in autumn, and cover the crown with straw and plastic film to keep warm in winter. If there is slight freezing injury, it will not affect the germination and growth of the next year. Fraxinus americana