Many people maintain that talking to plants, and exposing them to melodious sounds generally, encourages them to grow and promotes health. Indeed, albums have been recorded specifically for the purpose of invigorating plant growth.

A number of scientific studies have been conducted in an attempt to prove this. One study found that ultrasonic vibrations stimulated the production of hormones in plants and encouraged growth, while others have dicovered that sounds that fall within the range of human hearing also led to increased growth.

There have also been studies carried out to determine which type of music produces the best results, suggesting that classical music made plants healthier whereas loud music was detrimental to their health. One such study indicated that extremely loud noises increased the germination rate of some plants.

It was suggested as early as the nineteenth century that plants were capable of emotions and were likely to be healthier if they received a lot of attention. It has also been claimed that, while evidently can't understand the spoken word, plants are capable of understanding the meaning behind speech. Charles Darwin even compared certain characteristics of primates with those of plants.

Despite the many studies and theories on the topic, there is thought to be no scientific evidence to suggest that playing music or talking to plants will increase their growth rate or make them healthier.