THE ROLE OF PLANTS AND TREES IN THE SCRIPTURE.

Human life ends with death and burial in the ground. Plants are just the opposite. They emerge from the earth and draw nourishment from it. For this specific reason, many stories associate plants with birth or rebirth and with the eternal cycle of life springing from death. However, because some plants yield poisons and some die in winter, plants can also represent death and decay.
Various trees, shrubs, herbs, grains, flowers, and fruit appear in the Scripture as general symbols of rebirth, decay, and immorality. We can see why trees often take leading roles along with mountains and the sea, because trees are bigger than we are; they stand when we fall and they endure when we pass away. Yet, unlike the sea and the hills, we can muster the trees' power by chopping them down and discard them from its natural use for the sake of our on commodity. This is a sinful and stupid act.
We, as believers, are bound to the obligation to see the natural world as one charged with the power and glory of God. In the world of today, nature is treated as something that have lost their enchantment and it is represent just a thing for consumption. A star is just a nuclear reaction; a snake is just a reptile; a baby is just an arrangement of cells. We are not able to fell the insight of things.
In Genesis, the Scripture says, "And out of the ground made God to grow every tree that is pleasant to the sight, and good for food; the Tree of Life also in the midst of the Garden, and Tree of Knowledge  of good and evil." When we read these words, we are able to see the setup for the plot. The Tree of Knowledge of good and evil God commands the humans not to use, they disobey and used it as food. "The woman saw that the tree was good for food and that it was pleasant to the eyes and a tree to be desired to make one wise." The woman reverses God's order. For her food is first, beauty second. That Tree was good only for its beauty but not for its food. The woman was deceived: It is not wise to set aside beauty for food. Any animal can eat, but only humans can worship the Creator of things.
We find in the Scripture trees mentioned in a variety of kinds. They are mentioned for their beauty and each had fruits with seeds in it given to us for its spiritual use. Some seeds produced oil, others provided food. God gave us the possibility to increase their number by planting the seeds and by taking care of the trees, in that way we were able to secure our overall welfare.
In Revelation 22, we learn that the tree of life bears fruit crops 12 times a year and its leaves are for the healing of the nations. The Tree of Life, referred to in Genesis, is now portrayed as the symbol of God's provision for immortality to His chosen ones. The Tree of Life is now the blessing for all mankind while the Tree of Knowledge of good and evil is a curse. The Tree of Life is then the continuous reminder that immortality is a consequence of obedience. God has given us enough time to know the New Covenant made through Christ Jesus and His provision for eternal life to the ones who have the sincere desire in their hearts to obey His Command.