Lemon Balm: Uses, Benefits, Growing

A Medicinal Herb That Does Double-Duty as a Pest Control

Photo of Kelly R. Smith   by Kelly R. Smith

Lemon balm next to a tomato plant
Lemon balm next to a tomato plant
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Lemon balm (Melissa officinalis) is a lemon-scented herb that comes from the mint family. It is a perennial and its leaves have a light lemon fragrance. The herb is native to Europe, North Africa, and West Asia, but it’s cultivated around the world today. As with many popular herbs, it is highly regarded for its medicinal qualities. But don’t worry, you won’t need a shaman to administer it. Keeping a plant in your garden provides a steady supply of tea.

Here’s another important use — it doesn’t just have to be relegated to your herb garden, it can be planted anywhere because it offers a fringe benefit. In addition to its health properties, it acts as pest control because it repels mosquitos. Hello, outdoor barbeque!

Benefits of Lemon Balm

  • Stress Relief. Lemon balm is said to soothe symptoms of stress, boost your mood, and help you to relax. Just the thing after a day of dealing with proponents of Critical Race Theory. In a study, the National Library of Medicine found that, “The results showed that the 600-mg dose of Melissa ameliorated the negative mood effects of the DISS, with significantly increased self-ratings of calmness and reduced self-ratings of alertness.”1
  • Treating Insomnia. Combining lemon balm with valerian may help alliviate restlessness and sleep disorders such as insomnia. In addition, drinking lemon balm tea can help with disturbing dreams such as Corona Virus dreams.
  • It May Boost Cognitive Function. MDPI.com published a study that concluded, “active lemon balm treatments were generally associated with improvements in mood and/or cognitive performance, though there were some behavioral “costs” at other doses and these effects depended to some degree on the delivery matrix. The results indicate that Lemon balm delivered in foodstuffs can have positive behavioural effects which may be used in applied health settings.”2

  • Healing Cold Sores. According to WebMD.com, “Lemon balm ointments have been found to help heal cold sores caused by the herpes simplex virus (HSV).”3 Using lemon balm cream may help prolong the intervals between cold sore outbreaks.
  • Soothing Digestive Problems. Compounds in lemon balm may help with gastrointestinal problems like bloating and indigestion. Try adding 1 teaspoon (tsp) of lemon balm powder to a bowl of ice cream or smoothie.
  • Help With Menstrual Cramps. A study reported in the US National Library of Medicine concluded that, “the results of the current study showed that M. officinalis capsules were effective to reduce the intensity of PMS symptoms.”4

Health Risks

Although lemon balm is considered safe; the American Herbal Products Association’s Botanical Safety Handbook lists lemon balm as a “class 1” herbal product. Some sources recommend limiting it to 3 weeks use, 1 week off. Here are some interactions:

  • HIV Medication. Lemon balm may interact with HIV medications, but sufficient studies have not been conducted.
  • Sedatives and Thyroid Medication. There may be some interaction; consult with your doctor.
  • Glaucoma. Some reports say that lemon balm may increase eye pressure, impacting glaucoma.

Growing Lemon Balm

Plant lemon balm during the warm weather of late spring, once all chances of frost have passed. Space plants 20 to 24 inches apart in an area with partial shade and fertile, well-drained soil with a pH of 6.5 to 7.0. I only have one plant so spacing is not an issue.

Begin by mixing several inches of aged compost or other rich organic matter into your native soil. Check your soil moisture every few days and water when the top inch becomes dry. You’ll be doing your garden a favor if you install and use a foliar feeding with compost juice or Medina Hasta Gro. Harvest the leaves once your plant is 6 to 8 inches tall; avoid harvesting any more than one-third of the plant at a time.

Lemon balm is a must-have plant in your herb garden (in my opinion). For a small purchase price, you will reap a wealth of health benefits. It is so easy to grow, like other members of the mint family, that not green thumb is necessary.

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About the Author:

Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at Considered Opinions Blog where he muses on many different topics.


  1. David O. Kennedy, Wendy Little, Andrew B. Scholey, National Library of Medicine, Attenuation of laboratory-induced stress in humans after acute administration of Melissa officinalis (Lemon Balm), https://pubmed.ncbi.nlm.nih.gov/15272110/
  2. Andrew Scholey, et al., MDPI, Anti-Stress Effects of Lemon Balm-Containing Foods, https://www.mdpi.com/2072-6643/6/11/4805/htm
  3. WebMD.com, Health Benefits of Lemon Balm, https://www.webmd.com/diet/health-benefits-lemon-balm#1
  4. Marzieh Akbarzadeh, US National Library of Medicine, Effect of Melissa officinalis Capsule on the Intensity of Premenstrual Syndrome Symptoms in High School Girl Students, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4557408/

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