Lysimachia nummalaria

Lysimachia nummularia, commonly known as creeping Jenny, is a low-growing stem plant with rounded, coin-shaped leaves in fresh mid-green. In the aquarium it produces a trailing and creeping growth habit that makes it well suited to the midground of planted layouts, spreading gently across the substrate and filling gaps between upright stems and rosette plants.

It is an undemanding species that grows well under medium light without CO2 injection, making it a practical choice for low-tech planted aquariums. Growth is moderate and easy to manage. Regular trimming of any upward-growing stems keeps it in a tidy horizontal form. Cuttings root readily and can be replanted to fill in gaps.

Supplied as an established potted plant, Lysimachia nummularia suits aquariums from 40 litres upward. Its easy care, attractive rounded leaf form, and creeping habit make it a versatile and distinctive midground plant that provides a different texture to the more common upright stem plant species.