Trees grow by seeds, either by sowing or by wind. Most of them begin to sprout in spring. They grow radicle, germ and hypocotyl from the inside of the seeds, and then they will continue to grow. The germ develops into the outside part, emerges from the soil, and then they grow seedlings.
The leaves outside will continue to absorb sunlight, so they can carry out photosynthesis and begin to form glucose, which is the nutrient for growth. These nutrients will continue to be transported to all parts of the plant, in the process of continuous formation of nutrients, which can promote its later growth and development. In addition, the root will also absorb water from the soil and various nutrients, and then through the conduit to all parts, promote their synthesis of nutrients.
Through the year-on-year synthesis of nutrition, cell division, and then water absorption growth, trees will grow higher and higher, will become more and more thick, mainly the role of cell cambium.
For some plants that can blossom and bear fruit, when they grow to a certain stage, the trees will blossom and bear fruit according to the seasonal changes.
