Valerian root (Valeriana officinalis), which was prominent as early as the time of the ancient Greeks,¹ is one of the many herbs you can utilize if you’re experiencing sleep and anxiety-related problems. Learn more about valerian root today, including growing tips and side effects to watch out for.

What Is Valerian Root?

Valerian root, a perennial plant that’s a member of the Valerianaceae family, is also known by other names, such as garden heliotrope, setwall, Valerianae radix (Latin), Baldrianwurzel (German) or phu (Greek).² Its origins can be traced to Europe and Asia, although you can now find it in North America. The valerian root plant can reach heights of 3 to 5 feet, and produces paired leaves and fragrant white or light pink flowers.^3,4 The root itself, however, has an odor that most people deem unpleasant.

Out of the 250 known plants in the Valerianaceae family, V. officinalis is the most used variety in the U.S. and Europe. Valerian supplements are available nowadays, which are manufactured from dried valerian root extracts, or from the plant’s roots, rhizomes (underground stems) or stolons (horizontal stems). Dried valerian roots are also made into teas or tinctures.

Valerian root’s health benefits may stem from the interactions of materials in the plant, and not just because of a singular compound or group of compounds. According to the National Institutes of Health’s Office of Dietary Supplements, manufacturers often look for the following substances as a “standard” for classifying valerian root extracts:⁵

Valerian Root Benefits You Should Consider

If you’re having trouble sleeping or just want to improve your sleeping patterns, consider using valerian root since this is one of its main health benefits. This herb’s reputation as a sedative goes back about 2,000 years, as traditional medicine has highlighted valerian root’s capabilities to induce relaxation and sleep.⁶ These effects may occur because of compounds present in the plant, namely:

Modern studies support these claims. Results from a March 2000 Pharmacopsychiatry article showed that valerian root may assist in improving sleep-related parameters such as depth of sleep, speed of falling asleep and overall sleep quality.¹¹

In another study published in Pharmacology Biochemistry and Behavior, a 400-milligram valerian root dose promoted better sleep in 24 young, middle-aged adults experiencing sleeping difficulties. Additionally, half of these subjects reported “perfect sleep” after taking the valerian root dose.¹² Other studies also highlighted that valerian root may decrease time needed to fall asleep, and boost sleep quality and quantity.^{13,14,15,16,17}

Other Health Benefits Linked to Valerian Root

Valerian root is also known for its benefits in fighting anxiety. Studies have suggested that valerian root may help address generalized anxiety disorder or obsessive-compulsive disorder (OCD), whose main symptoms include anxious behaviors,^18,19 and may aid in alleviating anxiety caused by stressful situations.^20,21,22,23

Women suffering from hormonal issues may also consider taking valerian root to address hot flashes (linked to menopause),²⁴ premenstrual syndrome (PMS)²⁵ and painful menstruation (dysmenorrhea).^26,27 Other issues that valerian root or valerian root extracts may target include:

Valerian Root Uses You Should Know About

Ancient Greeks and Romans used valerian for medicinal purposes, and well-known Greek physicians like Hippocrates and Galen highlighted the plant’s possible health-boosting effects. During the 16th century, health concerns such as nervousness, trembling, headaches and heart palpitations were also alleviated using valerian root.³⁰

The Scottish used valerian root to address indigestion, while the Irish utilized the plant to combat tuberculosis.³¹ Traditional Chinese medicine practitioners also relied on valerian root to help relax smooth muscles and target gastrointestinal hyperactivity.³²

The book “A Field Guide to Western Medicinal Plants and Herbs” highlights that valerian root can also be utilized as a nerve tonic and may assist in addressing headaches, irritability, depression or despondency.³³ Valerian root extracts and essential oil are utilized to flavor foods and beverages, too.³⁴

Growing Valerian Root at Home

When growing valerian root, ensure that it is cultivated somewhere with access to sunlight and water, and is frequently exposed to light moisture.³⁵ You may sow valerian root seeds during spring, when soil temperature is a bit warmer, or purchase plant seedlings or divisions. However, valerian root seedlings, which are quite slow-growing, may need increased protection from fast-growing weeds that can crowd out the tender plants.³⁶

Valerian plants bloom during the early summer, and become fragrant, especially in the late afternoon.³⁷ To properly grow valerian root plants, follow these instructions from Garden Guides:³⁸

Cut the flower stalks on the valerian root plant if you’re only growing them to get the roots. This helps the plant focus on root growth only and prevents it from seeding. If you allow the plant to retain flowers, they may self-sow quickly and will then be hard to remove from your backyard.³⁹

The best times to harvest valerian root would be during the spring and fall, since this is when the roots’ medicinal compounds are most potent. You can harvest them by digging up the plant, along with the roots, and allowing the valerian root to dry in a dark, indoor location. While some people argue that freshly dug valerian roots smell like dirty socks, allotting some time for the roots to dry will help the odor dissipate.⁴⁰

Try This Valerian Root Tea Recipe Today

If you want to benefit from valerian root’s health-boosting properties, you can steep the roots and make tea, just like in this recipe:⁴¹

How to Store Valerian Root

Storing valerian root at home for future use is easy. Mother Earth Living suggests keeping it in airtight containers in a cool and dark place. Before storing, make sure the root is done drying and is quite crisp, and the best parts of the roots are cut off.⁴²

What Are Valerian Root’s Side Effects?

While most studies have discovered that this root doesn’t trigger severe adverse side effects, you must still be cautious of how much valerian root you take.⁴³ Headaches, stomachaches, irregular heartbeats, uneasiness,⁴⁴ increased feelings of excitement and dilated pupils⁴⁵ have all been linked to valerian root intake, especially when higher doses are taken. Daytime sleepiness is also a possible side effect.⁴⁶

Valerian root may predispose a person to insomnia, and even withdrawal symptoms once consumption is stopped. Don’t take valerian root if you’ll be driving or operating heavy machinery, as it can affect your thinking and reaction abilities.⁴⁷

Valerian root may negatively interact with alcohol and trigger drowsiness.⁴⁸ It can interact with other herbs, supplements and medications such as narcotics, antidepressants and anti-seizure medicines, as well:^49,50

If you have liver-related problems, consider avoiding valerian root or take it with extreme caution under the watchful eyes of a doctor.⁵¹ This plant has been linked to rare cases of liver injury.^52,53 Pregnant or breastfeeding women, as well as children under 3 years old, must avoid valerian root as much as possible, because of the lack of assessment regarding the herb’s potential effects on them.⁵⁴

Know the Ideal Valerian Root Dosage for Your Condition

When taking valerian root, I advise starting slowly — the smaller the dose, the better. Ideally, take the lowest dose of valerian root required for your particular condition. While some studies have used valerian root dosages between the 400- and 900-milligram (mg) range, taken 30 minutes to two hours before bedtime, American Family Physician recommends a root extract of 300 to 600 mg, or an equivalent dose of 2 to 3 grams of dried valerian root soaked in 1 cup of water for 10 to 15 minutes.⁵⁵

As a reminder, avoid greatly increasing your valerian root intake all at once. Higher amounts may cause unwanted effects like sleeping difficulties, and may increase anxiety and energy levels. A 2006 Phytotherapy Research study revealed that an 1,800 mg dose of valerian root raised feelings of anxiety among the study subjects.⁵⁶

As always, to fully determine how much valerian root you should be taking and to prevent adverse effects, consult your physician or a holistic nutrition specialist.

Valerian Root’s Health Benefits Are Admirable, but Exercise Caution Always

Despite its unpleasant odor, valerian root may be useful in addressing sleep-related concerns or anxiety. Valerian root’s uses in traditional medicinal practices prove that its health benefits have been well-known for hundreds of years and may be useful in this day and age too.

The challenge with using valerian root, however, lies in its availability. Unless you have the resources to grow your own plants, you’ll have to do extensive research to find a reputable seller who can provide you with high-quality valerian root. The same problem may occur if you plan to buy valerian root supplements, teas, tinctures or extracts.

Some of valerian root’s side effects may disrupt proper function and everyday routines, so avoid consuming excessive amounts of valerian root, and check with your doctor first on the right dosage for your condition.

Frequently Asked Questions (FAQs) About Valerian Root