The GIANT Book on Growing Trees and Bushes
by Dueep Jyot Singh
When Mother Nature blessed the new born earth with life forms milleniums ago, the diversity of one celled creatures took up different lines of evolution due to climatic changes and mutations. That is when plant life evolved along with animal life. And that is how the surface of the earth was covered with lush fruitful vegetation, which flourished and evolved in different climates.