The leaves are a rubefacient, which means that if you rub them against your skin it will become red and irritated, which is something to remember when you're in the woods looking for toilet paper substitutes. It also means that when you've been handling it, your hands get a warm, fuzzy feeling. Some people have used this property to their supposed advantage as a natural sort of makeup, which is how mullein acquired the name 'Quaker rouge'.
A tea made from the flowers reportedly has strongly soothing, sedative, properties. The flowers are used medicinally in the treatment of migraines and as a local antibiotic and bactericide.
The flowers make a bright yellow dye, which can be used to dye hair or cloth. The addition of sulfuric acid will produce a color-fast green. If you then add an alkali, to raise the Ph, the dye becomes brown.
Approx. 100 seeds per pack