Creeping-Jenny (Lysimachia nummularia), also known as Moneywort, is a perennial herbaceous plant native to the United Kingdom, belonging to the Primulaceae family. It is commonly found in various habitats, including wetlands, marshes, stream banks, woodland edges, and gardens, across the UK.

Creeping-Jenny thrives in moist to wet soils, often favouring habitats with partial shade or full sun. It can tolerate a wide range of soil types, including clay, loam, and sandy soils, making it adaptable to different environmental conditions.

Predators of Creeping-Jenny include herbivores such as grazing mammals and insects, which may feed on its foliage. However, its rapid growth rate and ability to spread via creeping stems often make it resilient to grazing pressure.

As a perennial plant, Creeping-Jenny can live for several years, forming dense mats of creeping stems and producing clusters of small yellow flowers in summer. It reproduces via seeds and also spreads vegetatively through rhizomes, allowing it to colonise and dominate suitable habitats.

Culturally, Creeping-Jenny is valued for its ornamental qualities and is often planted in gardens and landscapes as ground cover or for erosion control. Its bright green foliage and trailing habit make it a popular choice for hanging baskets, rockeries, and water features.

An interesting fact about Creeping-Jenny is its ability to tolerate wet conditions, making it a common sight in wetland habitats and along watercourses. Additionally, its common name “Moneywort” is derived from its use in medieval times as a herbal remedy for treating wounds, earning it the reputation of being worth its weight in gold.