What Is Mullein, and Why Are People Using It for Lung Health?

Gathering wildcrafted mullein leaf on Mayim Farm in Alabama

Walk a dirt road in late summer down here in Opp and you'll see it. A tall stalk, sometimes six or seven feet, standing up out of a ditch or a fence line. Yellow flowers running up the top half, big soft fuzzy leaves at the bottom. Gray-green, the kind of leaves that feel like flannel when you rub them between your fingers. Some people call it cowboy toilet paper.

That's mullein.

Most folks walk right past it. Some pull it up and call it a weed. But people have been using this plant for lung trouble for at least two thousand years, and right now it's one of the most searched herbal supplements in the country. There's a reason for that, and there's also a lot of confusion about what mullein does and how to use it.

We grow and wildcraft mullein here at Mayim Farm. We dry it ourselves, package it ourselves, and we've used it on our own family long before we ever sold a bag of it. So we'll tell you what we know.

What mullein is

The plant is Verbascum thapsus. Common mullein. It's a biennial, which means it takes two years to do its thing. First year it grows a low rosette of those fuzzy leaves close to the ground. The second year it shoots up that tall flower stalk and then dies back.

It came over from Europe a long time ago and made itself at home in pretty much every disturbed bit of ground in North America. You see it on roadsides, in old pastures, along logging cuts. It likes sun and it doesn't mind poor soil. Down here in south Alabama, ours grows along the edges of the field where the dirt isn't much good for anything else.

The part most people use for lung support is the leaf. The flowers get used too, mostly for an oil that goes in ears, and the roots have their own uses. But when people talk about mullein for breathing, they're almost always talking about the leaf.

Why people are using it for their lungs

Mullein has been called a lung herb for as long as anybody has written down what herbs do. The Greeks used it, the Romans used it, native folks here used it. The Appalachian and southern folk traditions used it too. Old timers around here remember their grandparents drying mullein in the smokehouse.

Two things about the leaf make it useful for breathing.

First, it contains saponins. Saponins help thin and loosen mucus and gently encourage the lungs to clear it. That's what herbalists call an expectorant.

Second, it contains mucilage. That's the same soothing plant compound that makes slippery elm and marshmallow root sit easy on a sore throat. Mucilage coats irritated tissue and calms it down.

So you've got one plant that helps move stuck congestion and settles down the irritation that comes with it. That combination isn't common. Most cough remedies do one or the other.

That's why mullein shows up in old recipes for:

  • Dry, hacking coughs that won't quit
  • Wet coughs where the gunk just won't come up
  • Bronchitis, and that long tail of a cold that settles in the chest
  • Smoker's cough, and the irritation a lot of former smokers deal with for years after they quit
  • Seasonal allergies that turn into chest tightness
  • General lung tune-ups in the fall when everybody's getting sick

Interest in mullein has been climbing steadily since 2020, when the COVID pandemic brought it a lot more attention. A lot of that is people coming out of respiratory illness still not feeling right, looking for something gentle to help their lungs recover. A lot of it is former smokers. Some of it is folks who got tired of cough syrup that knocks them out and wanted something that works with their body instead of overriding it.

How people use it

There are four main ways, and we make all four here on the farm.

Mullein tea. The most traditional. Dried leaf steeped in hot water for ten or fifteen minutes, then strained. You do want to strain it well, because the fine hairs on the leaf can tickle your throat going down. A clean coffee filter works, or a fine mesh strainer with a piece of cheesecloth. Drink it warm with a little honey if you like. One to three cups a day is plenty.

Mullein tincture. Dried leaf soaked in alcohol for six weeks or so, then strained. Tinctures are concentrated and they last for years, which is why people keep them on the shelf for when they need them. A dropperful in a little water is the usual dose.

Mullein in a tea blend. Mullein pairs well with other respiratory herbs like thyme, peppermint, plantain, and marshmallow root. Our Bronchial Support Tea is built around that idea.

Mullein in a smoking blend. This one surprises people. The tradition goes back centuries. Dried mullein leaf has been smoked for lung complaints in folk medicine on at least three continents. The idea is that the warm smoke delivers the herb's soothing action right where you need it. We make a tobacco-free smoking blend with mullein as the base for folks who want it.

If you're new to mullein, start with the tea.

Why where it comes from matters

Here's something most supplement companies won't tell you. Mullein is cheap. It grows wild in disturbed soil, which means most of the commercial mullein on the market is harvested from roadsides and industrial lots, in places where it absorbs whatever's in that ground. Heavy metals, diesel particulate, whatever the road department sprayed last spring.

That's the part of the industry we don't love.

Our mullein is either grown on our farm in Opp, Alabama, or wild harvested from clean land we know. Fields and woods edges away from roads, away from spray, away from runoff. We pick the leaves by hand, dry them on screens in clean air, and package them ourselves. Every bag has been through our hands.

That's just how a small farm works.

When you're putting a plant into your body for something as important as your breathing, you ought to know where it came from.

When mullein helps, and when to see a doctor

We believe in these plants, but we also know what they can and can't do.

Mullein is good for everyday respiratory support, lingering coughs, getting through allergy season, and helping your lungs work better in general. It's gentle, and it's been used safely for centuries.

It is not a substitute for medical care when you really need it. If you're running a high fever, coughing up blood, struggling to breathe, having chest pain, or your symptoms have lasted more than a couple weeks and aren't getting better, call your doctor. Pneumonia, asthma attacks, and serious lung conditions need a doctor, not a cup of tea.

We tell people the same thing we'd tell a neighbor. Mullein is one good tool. Use it for what it's good for, and don't ask it to do a doctor's job.

Want to learn more?

We wrote a longer reference guide on everything mullein. Preparation methods, what it pairs well with, more on the science, and how we grow and harvest it here. Read the Mullein Learning Center page →

If you want to try ours, all of it is on the Mullein Collection page. Dried leaf, tincture, tea blend, smoking blend. All grown or wild harvested, all dried and packaged here on the farm.

If you've got questions, email us. We answer them ourselves.

Greg & Carole
Mayim Farm, Opp, Alabama

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