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How Trees Grow The buds, root tips, and cambium layer are the three growing parts of the tree. Buds elongate the branches and widen the crown (branches and leaves), the cambium layer adds diameter to the tree, and the root tips grow in length to support the growth of the tree.
The rate that a tree grows depends on a lot of things. It depends on the climate, the kind of tree it is and also how much water it receives.Some trees take a long time to gr â¦ ow while others seems to grow very fast.ost commercial live Christmas trees are about 5 to10 years old, and about 2 to 3 metres talll, growing about 0.2 to 0.5 metres per year. This depends a lot on the type of tre â¦ e and the soil condions where they are grown.