Flower Essence Therapy

Edward Bach's career before the remedies

The Bach Centre, which maintains the house where Edward Bach worked, gives its own account of his life. It states that he qualified as a doctor in 1912, worked as a house surgeon and in private practice on Harley Street in London, and carried out bacteriological and pathological research. In 1917 he suffered a severe hemorrhage that required surgery and was given a prognosis of three months, from which he recovered. This is an organizational biography and has not been checked here against independent scholarly biographies.

According to the same page, Bach took a post at the Royal London Homoeopathic Hospital, created seven homeopathic nosodes based on his vaccine research, and became known in homeopathic circles as the second Hahnemann. The page presents this as the background to his later move away from London.

The 1930s remedy work

The Bach Centre dates Bach's departure from Harley Street and London to 1930, when he took the radiographer Nora Weeks as his assistant. Between 1930 and 1934 his year followed a seasonal pattern, with spring and summer given to searching for plants and winter to consultations, which the page places largely in Cromer, Norfolk. From 1934 he worked from Mount Vernon in Oxfordshire, where the page says he found the remaining remedies, and it describes the series of 38 remedies as complete by 1936. Bach died on 27 November 1936.

Later flower essence systems

Flower essence practice later extended beyond Bach's 38 remedies, including lines marketed as Californian and Australian Bush essences, which are associated with the 1970s and 1980s. The sources reviewed for this page do not include an independent, verified historical account of those later lines, so their founders, dates and preparation methods are not described here. Statements in this article about trials and safety apply to the Bach remedies and their commercial combinations unless a source says otherwise.

Remedies, essences and therapy

The Bach Centre uses the term flower remedies, and systematic reviewers use phrases such as Bach flower remedies or flower remedies. The term flower essences is common for later systems and in some trial reports, and floral therapy and flower therapy appear in trials from Brazil. A 2010 systematic review used flower remedies as its search concept for the Bach products and trials of related preparations. These names are not strictly interchangeable, and a trial of one formula does not describe every product sold under a similar name.

Terms used within the practice

The Bach Centre says each of the 38 remedies corresponds to a basic human emotion, using Mimulus as its example for fear of specific things. It also uses the terms mother tincture, for the preserved preparation made from the flowers, and stock bottle, for the diluted bottle from which doses are taken. Reviewers and encyclopedic summaries use the phrase Rescue Remedy for a prepackaged combination of five Bach extracts described as intended for acute anxiety. These are descriptions of practitioner and product vocabulary, not measured biomedical constructs.

Preparation at overview level

The Bach Centre describes two preparation techniques. In the sun method, used for delicate flowers, flower heads float in pure water for three hours in direct sunlight. In the boiling method, used for woody plants and plants flowering in weak sunlight, the flowering parts are boiled for half an hour in pure water. In both cases the water is filtered and combined with brandy as a preservative to make a mother tincture, which is then diluted into stock bottles at a stated ratio of two drops per 30 ml.

An encyclopedic summary from EBSCO's research service describes the remedies in similar overview terms, as flowers dipped in water with the fragrant liquid preserved in brandy. Exact production methods, dilution levels and alcohol strengths vary between producers, and the sources reviewed do not give one figure that applies to all products.

How a remedy is chosen and taken

In the Bach Centre's framework, a remedy is matched to an emotional state rather than to a physical diagnosis. The trials reviewed show how this is handled in research: investigators used fixed formulas, not individual selection. One Brazilian trial gave adults a 30 mL solution of 30 percent hydro-brandy containing two drops each of six remedies, taken as four drops by mouth four times a day for four weeks. A trial in nursing students used four drops four times a day for 60 days, and a trial in advanced cancer used a nine-essence solution on the same dose for 120 days.

Proposed mechanism

The Bach Centre states that the active ingredient is an energy from the plant, not a physical substance. This is a belief of the tradition and is not a measured mechanism. An EBSCO summary notes that the remedies are highly diluted. Controlled trials use placebo solutions such as hydro-brandy without the remedies, and a 2008 experiment with 251 people described flower essences as a biologically inactive self-help therapy to study how expectations and personal meaning shape reported benefit.

Uses described by practitioners and sources

The Bach Centre describes the remedies as addressing basic human emotions, and a 2009 systematic review notes that they are commonly recommended by practitioners for psychological problems and pain. The Rescue Remedy combination is described by EBSCO as intended for acute anxiety situations such as panic attacks. These are claims made by practitioners and reference summaries, not findings.

Conditions and settings studied

Controlled studies have tested flower remedies for examination anxiety, attention-deficit hyperactivity disorder, anxiety in adults with overweight or obesity, stress in nursing students, dental anxiety in children aged 4 to 6, stress in mothers of premature newborns, and hope and quality of life in advanced cancer. That a condition has been studied does not mean the research supports the use, as the next section explains.

Systematic reviews

A 2010 systematic review by Ernst searched five databases without time or language limits and included all randomized trials of flower remedies. It located seven trials, all but one placebo-controlled. All of the placebo-controlled trials failed to demonstrate efficacy, and the author concluded that the most reliable trials show no difference between flower remedies and placebo.

A 2009 review by Thaler and colleagues in BMC Complementary and Alternative Medicine searched MEDLINE, Embase, AMED and the Cochrane Library to June 2008. It is a journal systematic review, not a Cochrane review. It included four randomized trials and two observational studies. Three trials in students with examination anxiety and one in children with ADHD showed no overall benefit compared with placebo. The authors rated the strength of evidence as low or very low, found no controlled prospective studies for pain, and judged most of the evidence to have a high risk of bias.

Later randomized trials with null results

A triple-blind trial in 101 nursing students gave flower essences or placebo for 60 days. Both groups improved on stress measures with a large effect size, there was no significant difference between groups, and the authors noted an influence of the COVID-19 pandemic on scores. A triple-blind trial in 99 people with advanced cancer used a nine-essence solution or hydro-brandy placebo for 120 days. Hope rose over time in both groups with no difference between them, and quality of life did not differ between groups or across time.

Later trials with positive reports

A double-blind placebo-controlled trial in 81 overweight or obese adults with moderate to high anxiety reported greater reductions in anxiety, binge eating and resting heart rate, and better sleep, with the six-remedy solution than with placebo over four weeks. In 117 postpartum women whose infants were in neonatal care, a five-flower combination was reported to reduce stress scores more than placebo, while cortisol did not differ between groups. In 120 children aged 4 to 6, behavior ratings were better with Bach flower therapy than in the control group, while self-reported anxiety on a facial image scale did not differ between groups.

These trials are single studies in specific populations, and several measure subjective outcomes over short periods. They do not overturn the reviews on their own, which were completed before them, and the reviews did not include them. Whether the positive reports replicate has not been established by the sources reviewed.

Expectation and meaning

In a randomized experiment with 251 people, flower essences described as inactive were given with three different kinds of information. When framed as a spiritual therapy, baseline spirituality and expectancy each predicted reported outcome, and when framed as an affirmation therapy, expectancy predicted it. The authors proposed motivational concordance as a mechanism for real-life placebos. The study concerns how self-help rituals may produce reported benefit and does not test clinical efficacy.

Adverse events reported in research

Thaler and colleagues examined safety in six studies, of which only four explicitly reported adverse events. On that basis they concluded the remedies were probably safe, while noting that the evidence on safety had a high risk of bias. This is a statement about a small body of trials, not a guarantee for every product, user or dose.

Alcohol content

The preparations are preserved in brandy. The Bach Centre states that the amount of alcohol in a single diluted dose is minute but advises checking with a doctor, pharmacist or health advisor before taking an alcohol-based remedy if advised to avoid alcohol or if a medication has a contraindication with alcohol. EBSCO states that the remedies are considered harmless owing to dilution but that pregnant and breastfeeding women should avoid them because they contain alcohol. One trial used a 30 percent hydro-brandy solution in bottles of 30 mL, which shows that research formulations can contain substantial alcohol by volume. Alcohol content varies between products, and labels are the sources for a specific product.

Indirect harms and care boundaries

The sources reviewed describe no direct toxicity from the remedy preparations beyond the alcohol point above, and they do not quantify indirect harms such as delayed diagnosis or treatment. Because systematic reviews found no effect beyond placebo and the Bach Centre presents the remedies as acting on emotions, they are not a basis for delaying or replacing medical or mental health care for a diagnosed condition, severe anxiety or thoughts of self-harm. The sources reviewed do not cover practitioner training standards or the safety of other flower essence lines.