Plant Profile: Sagina decumbens

Pearlwort belongs to the Caryophyllaceae family and is characterized as a low-growing, moss-like annual that thrives in cooler seasons. However, it can sometimes behave as a short-lived perennial under certain conditions. There are two nearly indistinguishable species, with Sagina procumbens being the other, both featuring slender, awl-shaped leaves that range from half an inch to one inch in length, capable of forming dense mats. The flowers of this plant are white.

In the gardening market, various selections and related species are available, often used in rock gardens or as ground cover between paving stones. Pearlwort thrives in cool, moist environments and is commonly found near pathways.

This plant is known for its prolific seed production, with seeds contained in cup-shaped pods that disperse through splashing water. Pearlwort can become quite invasive, so if it is not desired, it is crucial to prevent it from seeding. Effective management strategies include enhancing drainage in areas where it tends to thrive. Additionally, preemergence herbicides specifically labeled for this purpose can help control its spread.