Verbascum thapsus, commonly known as mullein, is one of the most respected wild herbs for lung and respiratory health. Growing freely along roadsides, open fields, and sunny hillsides, this tall, soft-leaved plant has been used for centuries in European, Native American, and folk herbal traditions.

What makes mullein so valuable is its unique dual action: it helps loosen and expel excess mucus while also soothing irritated respiratory tissues. This makes it useful for both dry, irritating coughs and productive, congested coughs—a rare and powerful combination in herbal medicine.

Whether you struggle with chronic breathing issues or simply want natural support during cold and flu season, mullein is a gentle yet effective plant worth understanding.

Respiratory Conditions Mullein May Support

Mullein’s expectorant, demulcent, and anti-inflammatory properties allow it to support a wide range of respiratory concerns:

• Dry or productive cough

• Bronchitis (acute or chronic)

• Asthma (supportive use only)

• Lung congestion and excess mucus

• Sinus infections and post-nasal drip

• Sore throat and throat irritation

• Smoker’s cough

• Emphysema (symptom relief support)

• Pneumonia (as a complementary herb, not a cure)

• Post-viral or post-COVID lung weakness

• Chronic Obstructive Pulmonary Disease (COPD) – symptom support

• Allergy-related breathing issues

• Laryngitis and voice strain

• Chest tightness and wheezing

• Inflammation of lung tissue

How it works:
Mullein contains mucilage that coats and calms irritated tissues, while its saponins help break up thick mucus so it can be expelled more easily.

How to Identify Mullein in the Wild

Mullein is one of the easiest medicinal plants to identify, even for beginners.

Key identification features:

• First Year:

  • Large, ground-hugging rosette

  • Thick, oval leaves

  • Extremely soft, fuzzy, felt-like texture

  • Gray-green color

• Second Year:

  • Tall central stalk (up to 2 meters / 6–7 feet)

  • Bright yellow, five-petaled flowers blooming upward

  • Flowers open gradually along the stalk

• Leaves:

  • Woolly, velvety hairs (hence the nickname “flannel leaf”)

• Habitat:

  • Sunny, dry locations

  • Roadsides, abandoned fields, pasture edges

Always harvest away from polluted roads or sprayed areas.

When and How to Harvest Mullein

Leaves

• Best harvested in the first year

• Choose clean, healthy leaves

• Harvest in dry weather

Flowers

• Collected in mid to late summer

• Pick gently, as they are delicate

Drying

• Lay leaves flat in a single layer

• Dry away from sunlight

• Store in airtight containers

 Proper drying preserves both potency and safety.

How to Use Mullein for Lung Health

1. Mullein Tea (Most Popular)

How to prepare:

• 1 tablespoon dried leaves or flowers

• 1 cup hot (not violently boiling) water

• Steep 10–15 minutes

• Strain very carefully through a fine cloth or coffee filter

Why straining matters:
Tiny hairs on mullein leaves can irritate the throat if not removed.

Use for:
Coughs, chest congestion, sore throat, mild asthma support
Drink up to 3 cups daily during illness.

2. Steam Inhalation

How to use:

• Add a handful of dried or fresh leaves to hot water

• Cover head with a towel

• Inhale steam for 5–10 minutes

Benefits:

• Clears sinuses

• Loosens chest mucus

• Opens airways naturally

3. Mullein Tincture

• Use 1–2 dropperfuls, up to 3 times daily

• Longer shelf life than tea

• Stronger systemic effect

Best for chronic conditions or when tea isn’t practical.

4. Mullein Flower Oil (External Use)

Preparation:

• Fill a jar with dried mullein flowers

• Cover with olive oil

• Infuse 2–4 weeks

• Strain and store

Uses:

• Chest rub during respiratory illness

• Traditionally used for ear discomfort

• Gentle enough for children (external use)

Helpful Herbal Combinations

Mullein works beautifully with other lung-supporting herbs:

• Thyme – for stubborn coughs

• Licorice root – for throat irritation

• Elecampane – for deep lung congestion

• Marshmallow root – for dry, irritated coughs

Avoid combining mullein with dairy during illness, as dairy may increase mucus.

Safety & Precautions

• Generally safe and non-toxic

• Always strain teas thoroughly

• Not a replacement for emergency or prescription treatment

• Consult a healthcare professional for:

  • Pneumonia

  • Severe asthma

  • COPD flare-ups

• Pregnant or breastfeeding individuals should consult a professional before use

Final Thoughts

Mullein is a gentle yet powerful reminder that some of the most effective lung remedies grow freely around us. Its ability to calm inflammation, loosen mucus, and soothe irritated airways makes it one of the best herbal allies for respiratory health.

Used with respect and proper preparation, Verbascum thapsus offers steady, natural support for clearer breathing—without harsh side effects.