Mullein for lung support: harvest, dry and store

There's a plant growing along your driveway, your fence line, and every disturbed patch of dirt on your property that the old-timers used to treat coughs, congestion, and busted-up lungs long before anybody had a pharmacy to run to. It is mullein, and once you learn to spot it, you will see it everywhere up here at elevation.

I'm at around 6,000 feet in Colorado, and mullein thrives here. It loves the dry, rocky, sun-baked ground that most garden plants hate. That makes it one of the easiest medicinal plants for a Colorado prepper to identify, harvest, and put up for the year. No seeds to buy, no watering.

Let me walk you through what it does, how to use it, and how to get it from the hillside into your storage shelf so it actually lasts.

Mullein has been used in herbal traditions for a long stretch of human history, and the focus has almost always been the same thing: the lungs and airways. The reason comes down to two compounds in the plant.

The first is mucilage, a slippery substance that coats and soothes irritated throat and airway tissue. The second is saponins, which act as an expectorant, meaning they help loosen and move mucus out so a dry, stuck cough turns into a productive one. Put those together and you have a plant that calms an irritated airway while helping clear the gunk out of it.

The traditional and reported uses you will run across include:

Most of the evidence behind mullein is traditional use, lab studies, and animal research rather than a stack of large human trials. If you have a serious respiratory condition or take other medications, research before you start dosing yourself with anything. What I can tell you is that this plant has earned its reputation over a very long time, and it is free.

Tincture is an alcohol extract, good for long shelf life and easy dosing. You pack a jar with the plant material, cover it with 40 to 50 percent alcohol (80 to 100 proof vodka works), and let it sit for 4 to 6 weeks before straining through a coffee filter.

Mullein is a biennial, meaning it lives two years. In year one, it grows as a low rosette, a flat circle of big, soft, fuzzy leaves hugging the ground. In year two, it shoots up that tall flower stalk you have seen standing along the roads, sometimes five or six feet high, topped with yellow flowers. Each part of the plant has its own job and its own timing.

On timing at my elevation: the general window is late spring through summer, picking on a dry day. Up here at 6,000 feet the season runs a little behind the lowlands, so I am watching for flower stalks through the back half of summer rather than expecting an early-June bloom like you would get down on the plains. Pick after the morning dew has burned off and before the hard afternoon sun, so the leaves are dry going in but the plant has not been cooking all day.

A few rules to follow:

The enemy is moisture, because trapped moisture means mold, and mold means you throw out the whole batch.

Do not wash the leaves. Washing introduces water you then have to drive back out, and the fuzzy leaves hold it. Just shake off and pick off any debris or bugs before drying.

You have two solid methods:

Up here the dry Colorado air is doing me a big favor. Leaves typically take one to two weeks to dry fully, and the more delicate flowers usually finish in just a few days, so check those flowers daily so they do not over-dry or mold in a humid spell. Mullein leaves stay soft and suede-like even when fully dry, so check that they're dry all the way through the thick central rib rather than waiting for a crisp snap.

Once the leaves feel dry all the way through that thick central rib and the flowers are papery, get everything into storage right away before it can pull moisture back out of the air.

Store the dried leaves and flowers in airtight containers, glass jars are ideal, kept somewhere cool, dark, and dry. Out of light and out of heat. Label every jar with the plant name and the date you put it up, because in a year you will not remember.

On shelf life: dried mullein leaf and flower hold their potency for roughly a year stored properly. Here is the tell: when the green leaves and yellow flowers start fading and losing their color, they are losing their medicinal punch right along with it. Faded, dull material is past its prime. That is your signal to use it up or harvest fresh.

If you want the longest possible shelf life, that is where a tincture comes in. An alcohol extract will keep for years, well beyond what the dried plant material will hold, which makes it a smart way to bank a good harvest for the long haul.

Mullein is about as good as it gets for a beginning forager and a serious prepper alike. It is free, it is everywhere on dry Colorado ground, it is easy to identify once you have seen it, and it puts up well for the year with nothing more than air and patience. Learn to spot the rosette and the tall yellow stalk, harvest clean, dry it slow and dark, and store it cool and airtight. Do that and you will have lung support sitting on your shelf that cost you nothing but a walk and an afternoon.