Lobelia cardinalis grows wild in Northern America. In the nursery this plant is cultivated in marshy conditions, forming dark-green leaves that are purple underneath. In aquariums, the leaves turn a beautiful shade of light-green, with stems 10-30 cm tall and 5-10 cm wide.
Widely used in Dutch aquariums in so-called "plant streets''. In open aquariums, it grows above the water surface, where it forms very beautiful scarlet flowers and the leaves regain their color. It can be used in garden ponds.