The Plant Encyclopedia is a compilation of all the knowledge and information about plants that humanity has been able to accumulate over centuries of its existence. Even at the dawn of human development as a thinking species, our primitive ancestors practiced gathering edible and medicinal plants, learning by trial and error to identify poisonous plants. Later, mastering agriculture — the cultivation of plants from seeds — became an indicator of the development and enlightenment of civilization. At the same time, plant reference guides began to be compiled describing plant properties and care methods.

With the development of civilization, people increasingly discovered the world of plants in all its many facets and manifestations. More and more plant species were cultivated or obtained through hybridization experiments. People learned to grow exotic plants in greenhouse conditions year-round regardless of the surrounding environment, discovered many ornamental plants for garden decoration and even more medicinal plants for use in modern medicine.

The catalog of the planet's plants is constantly being supplemented by discoveries of new species of flowers and plants, and amateur and professional gardeners improve their plant care skills in nurseries and outdoors every day.