Pelargonium sidoides is a rosette-like plant with crowded, velevty, heart-shaped and aromatic leaves. The flowers that are born on long, slender stalks branched into two pseudo-umbels. They are a very dark purple, almost black, that is very unusual.
It forms an underground tuber that allows it to survive periods of drought. In cultivation it is evergreen. Interplant it with small grasses.
This specie is well-known for its medicinal value and a popular remedy for colds are made from it.