Trees grow from extracting the carbon they find in the 0.04% CO² in our air. Not from the ground, not from the water they find in there. They break apart the carbon from the air and release the oxygen for us to breathe. The carbon is converted to glucose, then to cellulose and finally into wood itself.
That is why trees thrive in pots: they only need ground to anchor their roots and extract additional building blocks. This is why growing trees is such a slow process.
Comments