Planted April 17, 2024
Diphasiastrum digitatum, commonly known as Ground Cedar or Fan Clubmoss, is a perennial evergreen plant that belongs to the family Lycopodiaceae. This fascinating plant resembles a small conifer, with its upright, branching stems that can reach heights of 5 to 10 inches. The stems are covered with small, scale-like leaves that are arranged in a whorled pattern, giving the plant a distinctive appearance reminiscent of a miniature cedar tree. The foliage is typically a vibrant green, providing a lush carpet-like effect in shaded woodland areas.
This species thrives in moist, acidic soils and is often found in forest understories, where it prefers dappled sunlight to full shade. The growth habit of Diphasiastrum digitatum is clumping, with the stems spreading outwards to form dense mats. It is a slow-growing plant, typically adding only a few inches of height each year, making it an excellent choice for ground cover in shaded areas of the garden. The plant is also notable for its ability to tolerate a range of soil types, provided they are well-drained and rich in organic matter.
In terms of reproduction, Diphasiastrum digitatum produces spores rather than flowers, which is characteristic of clubmosses. The spore cones are borne on upright stalks that emerge from the leaf axils, typically appearing in late summer to early fall. These cones are small and cylindrical, containing the spores that will eventually disperse to create new plants. This method of reproduction allows the plant to spread gradually over time, forming larger colonies in suitable environments.
The plant is hardy in USDA Zone 8a, where it can withstand mild winters and thrive in the warm, humid summers typical of this zone. It is important to note that while Diphasiastrum digitatum is not considered toxic to humans or pets, it is not commonly used in landscaping due to its specific habitat requirements and slow growth rate. However, it can be a valuable addition to shaded woodland gardens or naturalized areas, providing a unique texture and color to the landscape.
Propagate by spores; collect spores from mature cones and sow in a suitable medium, keeping moist until germination occurs.
Last updated on August 28, 2024. We try our best to make sure this information is accurate. Did we make a mistake? Let us know at support@knownplants.com.