Great Mullein

What is Great Mullein?

Great Mullein (Verbascum thapsus) is a tall biennial plant with large, soft, silvery-green leaves and a towering spike of yellow flowers. It grows wild across Europe, Asia, and the Americas and has been one of the most widely used medicinal herbs across dozens of cultures for over 2,000 years. Every part of the plant — leaves, flowers, and roots — has been used medicinally, with the leaves and flowers being most commonly used today.

How does Great Mullein work?

Mullein works mainly through its rich mucilage content, a gel-like substance that coats and soothes irritated mucous membranes in the throat and airways, helping to calm coughs and loosen congestion. Its saponins help thin and expel mucus from the lungs, while its flavonoids and phenylethanoid glycosides offer anti-inflammatory and antioxidant support. The flower-infused oil has traditionally been used for its soothing and potential antimicrobial effects in the ear canal.

What forms does Great Mullein come in?

Mullein leaf tea is the most traditional and widely used form — simmer or steep dried leaves and always strain well through a fine cloth to remove tiny leaf hairs. Tinctures and capsules offer a more convenient daily option. Mullein flower ear oil is the classic preparation for ear discomfort and is widely available. Syrups often combine mullein with other respiratory herbs like thyme or elderberry for added effect.

Where it comes from:

Native Americans across dozens of tribes adopted mullein quickly after European introduction, using it as a smoked remedy for lung conditions and as a leaf-lined moccasin for warmth and foot comfort. In European folk medicine it was called 'Hag's Taper' and used for coughs, bronchitis, and even tuberculosis for over two millennia. The Greek physician Dioscorides recorded its use for lung diseases around 60 AD, and it remained a staple in European pharmacopoeias through the 19th century.

What does Great Mullein help with?

• Dry and irritating cough: Mullein's thick, gel-like mucilage coats the throat and airway lining, providing a soothing barrier that calms the nerve signals that trigger a dry, tickling cough. It is one of the gentlest and most effective herbal remedies for a cough that just won't quit.
• Chest congestion and bronchitis: The natural saponins in mullein act as expectorants — they help thin sticky mucus in the lungs and make it easier to cough up and clear out. This makes mullein particularly useful for the wet, heavy chest congestion that lingers after a respiratory infection.
• Ear pain and ear infections: Mullein flower oil is a well-known traditional remedy for ear pain, particularly when used alongside garlic oil. Small clinical studies suggest it can ease pain from ear infections comparably to pharmaceutical ear drops. The flowers are steeped in warm olive oil and a few drops are placed in the ear canal.
• Asthma and wheezing: Mullein has long been used to help open up tight, irritated airways. Its anti-inflammatory compounds help calm bronchial inflammation, and the expectorant action helps clear mucus that worsens wheezing. It is not a replacement for rescue inhalers but can support overall respiratory comfort.
• Sore throat: The mucilage in mullein tea coats a raw, painful throat and provides immediate soothing relief. Anti-inflammatory compounds help reduce swelling in the throat lining, making it easier to swallow and speak.
• Sinus congestion: Mullein helps loosen thick mucus in the sinuses and supports its drainage, easing that heavy, blocked feeling. Inhaling steam from a hot mullein tea is a traditional approach that delivers the active compounds directly to the nasal and sinus passages.
• Respiratory tract infections: Mullein extracts have shown meaningful antimicrobial activity against several respiratory bacteria and viruses in lab studies, and its immune-supportive flavonoids may help the body fight infection. It is traditionally used at the first sign of a chest cold to shorten duration and reduce severity.
• Inflammation and swelling: The phenylethanoid glycoside verbascoside (acteoside) is one of mullein's most studied anti-inflammatory compounds. It helps calm overactive inflammatory pathways in tissues — relevant not just in the respiratory system but in joints and skin when mullein preparations are applied topically.

What can Great Mullein help prevent?

• Worsening of acute respiratory infections when used early in illness

Which foods are rich in Great Mullein?

Great Mullein is an herbal plant and is not present in common foods. To support the same respiratory and anti-inflammatory goals, focus on: (1) Honey — raw honey coats and soothes airways and has real antimicrobial properties; (2) Ginger — a powerful natural anti-inflammatory that helps open airways and ease congestion; (3) Thyme — rich in thymol, a natural expectorant and antimicrobial agent used clinically for bronchitis; (4) Garlic — broad antimicrobial and immune-supporting properties that complement mullein for respiratory infections; (5) Pineapple — contains bromelain, which helps thin mucus and reduce airway inflammation. Staying well hydrated and using warm broths, herbal teas, and steamy soups also directly supports the mucous membrane health that mullein targets.

What are the side effects of Great Mullein?

• Throat irritation if tea is not strained properly (leaf hairs)
• Mild skin irritation or rash in sensitive individuals handling fresh leaves
• Rare allergic reactions (more likely in those with ragweed or daisy family sensitivities)
• Mild drowsiness at high doses
• Mild gastrointestinal upset in sensitive individuals

Good to know:

Mullein is considered very safe and has a long history of use without significant adverse events. The most commonly reported issue is throat irritation from improperly strained leaf tea — always strain through a fine cloth or coffee filter to remove the tiny leaf hairs before drinking.

How much Great Mullein should you take?

• Recommended daily: Tea: 1.5–2 g dried leaf steeped in 150 mL hot water, strained well, 3–4 times daily. Tincture: 1:5 in 25% alcohol, 2–4 mL three times daily. Capsules: 400–500 mg dried leaf extract, 2–3 times daily. Ear oil: 3–5 warm drops in the affected ear, 3 times daily.
• Best time of day: Tea works well morning and evening, and especially before bed for nighttime cough. Ear oil is easiest to apply while lying down, holding the position for 5 minutes after application.
• With or without food: Tea and capsules are fine with or without food; taking with food may reduce stomach sensitivity in some people.
• Time to effect: Throat and cough soothing: within hours to 1 day. Chest congestion and ear discomfort: 1–3 days of consistent use.
• How long to take it: Use acutely for respiratory illness until symptoms resolve — typically 1–2 weeks. For ongoing respiratory support (e.g. asthma, chronic bronchitis), 4–6 week courses with 1–2 week breaks are a reasonable approach. Not intended for indefinite daily use without practitioner guidance.