Growth [noun]
1. The process in people, animals or plants of growing physically, mentally or emotionally.
2. An increase in the size, amount or degree of something.
3. An increase in economic activity.
4. A mass of cells caused by a disease that forms on or inside a person, an animal or a plant.

"Only partial control can be exercised over its growth and form. There is no final result, only a continuous succession of phases."