Flower essences, a form of vibrational medicine, were first developed in the early 20th century by a famous British physician and homeopath, Dr. Edward Bach (1886-1936). He noticed that specific flowers found in the British countryside uniformly affected human emotional states, and made extracts from these flowers to correct psychological imbalances in his patients.

Early in his career, Dr. Bach became aware that a patient's personality and attitudes had an effect on their physical health. He became increasingly dissatisfied with the limitations of western medicine, which aimed only to alleviate symptoms and failed to see the patient as a whole. His most famous remedy is Rescue Remedy, which is a combination of 5 flower essences which act synergistically to calm stress and fear.

The Bach flower essences are derived from British wildflowers, but new essences have been developed from regional plants and flowers from all over the world, e.g. California, Australia, New Zealand and Europe.

Though used primarily for emotional and behavioral issues, flower essences can also promote physical healing by bringing the body back into vibrational balance.