Chlorophyll, chloroplast undoubtedly green performance. Anthocyanins are red performance alkaline substances encountered in the performance of purple. Carotene is manifested in orange or yellow, depending on changes in the environment of sugar by the American Maple collectively known as anthocyanins or carotenoids. In the spring, the new American maple leaf will show a little red, mainly due to the impact of anthocyanins, and then when the leaves grow, the United States began to carry out photosynthesis maple seedlings, a large number of chloroplasts and chlorophyll synthesis, US Maple's leaves gradually turn green. American Maple autumn leaves show quality American maple, mainly depends on environmental factors, such as planting location at high altitude or mountain, large temperature, air humidity is good, then the performance is better. If you are planting in an urban area of ??high-quality American maple, due to the influence of the heat island effect, it would be relatively badly. If planted in the northern high latitudes, the fall will also perform well, contrary planted in the southern low latitudes, will be relatively badly. Even if the same American maple species, changing the planting location, it will be a great difference in its performance. Quality American maple, American maple, red maple grand seedlings provided by the United States Grand Weifang seedling cultivation base. Weifang grand seedling cultivation base (www.wfsdmm.com) strong, credible, Shandong Weifang flowers industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the grand seedlings into the brilliant and you work for a better future!