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Equally well known for centuries now are the healing powers of many plant species, either by themselves or because of the active agents they contain. Many of the virtues of plants are scientifically proven. Others come from myths, legends and traditional beliefs which, oddly enough, end up having a basis in science.

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The positive effects of the plant world are myriad:
- Recent studies show that plants serve as filters of noxious substances in smoke and gas. Some species common to households such as philodendrons and spatiphylums can clean the air of vapors emitted by dangerous substances such as benzene, formaldehyde, carbon dioxide and chlorethylene.

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- They can also absorb radiation emitted by television and computer screens. Plants with thorns or prickles are especially good for this.

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- Then there is the psychological benefit, which is less obvious but important to our quality of life. Clearly, a setting with plants, either indoors or outdoors, is more cozy and relaxing than one without these living things that are as protective and generous as they are discrete.

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- Especially through their colors and scents, plants have a very positive effect on people's moods, helping them overcome stress, anxiety and depression. Doing gardening work is particularly therapeutic in such cases, but this a broad area that deserves an entire, separate discussion. Species such as bamboo and cyclamen are said to have the capability to transmit positive energy.

Clearly, throughout history plants have played an important role in the lives of humans. Many cultures have considered trees such as birch, beech and oak to be sacred, besides assigning them magic or healing properties and showing them great respect which, unfortunately, has been lost in modern times.
Starting way back in history man has given plants a symbolic value and used them to capture and express feelings. If only for that reason, it's a good idea to fill our lives with plants.

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