Rhizome German blue bearded iris (Iris germanica)
The blue sword lily or bearded iris is a robust and very drought-compatible flower plant for the garden.
Due to its fragrant rhizome, the plant is also called violet worm and is therefore in demand in the perfume industry. Iris oil is one of the most precious natural products. It is therefore only used in the smallest doses, for example for high-quality perfumes or for the aromatization of foods, liqueurs, confectionery and baked goods.
Previously, the rhizome was also used medically, but the effect is not proven. However, the dried and small-cut root is still used today as a dental aid.
Interestingly, the German blue lily does not produce seeds in northern Europe (unlike the Mediterranean region), so one can guess that the origin of the plant is hardly found in Germany.