Great mullein, Verbascum thapsus, has a huge number of other names including Aaron's rod, Adam's flannel, beggar's blanket, beggar's stalk, blanket herb, bullock's lungwort, candlewick plant, clot, clown's lungwort, common mullein, cowboy toilet paper, Cuddy's lungs, duffle, feltwort, flannel mullein, flannel plant, fluffweed, golden rod, hag's taper, hare's beard, Jacob's staff, Jupiter's staff, molene, Moses' blanket, mullein, mullein dock, old man's flannel, Our Lady's flannel, Peter's staff, rag paper, shepherd's clubs, shepherd's staff, torches, velvet dock, velvet plant, white mullein, wild ice leaf, woollen and woolly mullin. It's not related to lungwort, nor to the plant normally called goldenrod (Solidago virgaurea, which incidentally is another plant also known as Aaron's rod) nor rose root (also sometimes called Aaron's rod), all of which belong to different botanical families.
Great mullein is a biennial which reaches a height of 2m (6') or more in the second year, thoroughly deserving the name, though in the first year it has a totally different form and apparently different leaves, as they are thickly coated in fuzz, see picture left, rather like lamb's ears (also unrelated). This must be where all the names about blankets, flannel, velvet and wool come from, as the full grown plant gives very little clue to this (although the hairs are still present, they are not so obvious). In fact, it's quite a brute, isn't it?
Given its appearance, this is not a plant anyone is likely to grow as an ornamental, despite the fact that the flowers (as well as the size) are similar to hollyhocks (unrelated, lol). I guess since it is so big it could be tucked at the back of a border with something in front to conceal the unattractive foliage, though this will leave the first year form (which is a lot prettier) hidden. This may not work in any case, because it is insistent on living in full sun, and will not thrive in shady areas. Perhaps it is best relegated to the allotment or bought dried from your friendly local herbalist.
Great mullein is found growing wild all over the temperate world, having been introduced to the Americas, Australia and New Zealand from its native Europe, Africa and Asia. Although unlikely to become invasive except in areas with little competition or after forest fires, it is listed as a noxious weed in Colorado, Hawaii and Victoria, Australia. Because each plant produces a huge number of seeds which can lie dormant for up to 100 years, it is very difficult to eradicate completely.
If you decide to grow it, you will find that it is completely unconcerned about soil type or acidity and will thrive in moist or dry conditions, though it does prefer chalky, well drained soil. As already mentioned it needs full sun. It will not tolerate maritime winds (despite the fact that it is often found growing in coastal areas). Sow in a cold frame from late Spring to early Summer, barely covering the seed. Pot on as required until late Summer, when they can be planted out in their final positions.
Do not grow great mullein close to ponds which contain fish, or allow the leaves or seeds to fall into the water. Both leaves and seeds contain compounds that cause breathing problems and consequent death in fish.
The leaves contain the natural insecticide, rotenone. The name torches comes from the old custom of dipping dried stems into wax or suet to make torches. Dried leaves were also used as candle wicks and can be used as tinder. Leaves were put into shoes to provide insulation.
Flowers produce a yellow dye without mordant, green with dilute sulphuric acid, brown with alkalis. An infusion of the flowers with caustic soda was used by Romans to dye their hair blonde.
Due to hormonal effects, great mullein is not suitable for use by pregnant women or anyone trying for a baby.
The parts used in medicine are the juice, leaves, flowers and roots. The seeds are not used, as they are toxic to humans as well as fish. If using great mullein juice, leaves or flowers internally in liquid form, it must be carefully strained through a fine filter to remove the irritating hairs (a "quick and dirty" method would be to put a layer of clean kitchen towel in a tea strainer and pour it through that).
Great mullein has been used in medicine for at least 2,000 years, when it was recommended by Dioscorides for chest complaints. After its introduction into the US, native Americans used it to make syrup for treating croup (an acute inflammatory condition of the airways often characterized by a barking cough). It was once listed as a medicine in the German Commission E document to treat catarrh, and in the National Formularies of the US and UK. Even today, its main use is for coughs and other respiratory disorders. The dried leaves were once smoked to relieve asthma, croup, TB cough and spasmodic coughs in general.
Properties given for this herb are: analgesic, anodyne, anti-cancer, antihistamine, anti-inflammatory, anti-oxidant, antiseptic, antispasmodic, antiviral, astringent, bactericide, cardio-depressant, demulcent, diuretic, emollient, estrogenic, expectorant, fungicide, hypnotic, narcotic, nervine, odontalgic, sedative and vulnerary. This list refers to the whole plant. Different parts of the plant have different properties.
To make a standard infusion, use 15g (a half ounce) of fresh or 30g (1 oz) of dried leaves to 500ml (2 US cups, 16 fl oz) boiling water. Allow to infuse for a minimum of 15 minutes (up to 4 hours), then strain carefully as described previously before use. The flowers are also sometimes used in the same way. The dose is a third of a cup, taken up to 3 times a day.
A decoction of roots is made by putting 15g (a half ounce) of fresh or 30g (1 oz) of dried chopped root in a small saucepan, adding 500ml (2 US cups, 16 fl oz) cold water and bringing to a boil. Turn down to a simmer and continue heating until the liquid is reduced by half, then strain off the herb and discard.
To make an oil maceration of mullein flowers, fill a bottle with as many flowers as will fit, cover with olive oil and seal, then shake thoroughly. Place on a sunny windowsill and shake thoroughly once a day for 3 weeks, then strain off and discard the flowers using a fine filter to remove all hairs, as described above. Reseal and store in a cool place out of direct sunlight.
To make a poultice, mix fresh or dried chopped leaves with very hot water and mash up, then wrap in a piece of gauze and wring out as much of the liquid as possible. Apply to the area to be treated, refreshing in the hot water when it cools.
The standard infusion reduces mucus production and is expectorant. It is taken internally in the treatment of a wide range of chest complaints, including bronchitis, mild catarrh and sore throat. Its demulcent and astringent properties make it a good treatment for colic, diarrhea and hemorrhoids (if blood was found in the diarrhea, a decoction of leaves boiled in milk for 10 minutes was traditionally used instead, but my advice is to visit the doctor as this can be an early warning sign of more serious illness). It can also be used as a treatment for internal parasites (vulnerary).
An infusion made using 1 teaspoonful per cup of a mixture containing 2 parts of great mullein to 1 part each of coltsfoot and uva ursi by volume, taken twice a day, is recommended for lung repair by Dr Elise Wright of AllExperts.com. According to eHow Health, the expulsion of a black tar-like substance after several days of use is an indication of this mixture's effectiveness.
A decoction of the roots is analgesic and anti-spasmodic and can be used to treat toothache, cramps and convulsions. It can also be used to treat migraine.
Grind up dried roots and mix with strained mullein juice to make a topical treatment for boils, chilblains, hemorrhoids and warts. It is said to work only on rough warts, not smooth warts, though as all warts are caused by HPV, this seems strange. It's probably worth trying even on a smooth wart, for this reason.
A poultice of leaves can be used to treat hemorrhoids, external ulcers, splinters, sunburn and tumors.
Studies have found that great mullein flowers have a bactericidal action and may also be effective against tumors. A flower maceration is used externally to treat bruises, chilblains, eczema, frostbite, hemorrhoids, mouth ulcers and ringworm. It can also be used in the ear to treat earache (2-3 drops at a time, up to 3 times a day).
A homoeopathic tincture of mullein is used to treat long-standing migraine.
As with all herbs used as remedies, great mullein should be grown organically to avoid corrupting your remedy with noxious chemicals. To find out more about growing organic great mullein visit the Gardenzone.