Widow's-cross
Sedum pulchellum
Description
Widow's-cross (latin Sedum pulchellum) is a perennial succulent plant belonging to the Crassulaceae family. This species is native to the central and eastern United States, where it typically thrives on limestone glades and rocky outcrops. It is commonly referred to as "starfish stonecrop" due to the unique, radiate arrangement of its inflorescences during the peak blooming season.
The plant is characterized by its succulent, linear, and glabrous leaves that form dense rosettes. Its growth habit is prostrate or ascending, making it an excellent candidate for covering bare patches in challenging environments. The plant is adapted to survive in areas with shallow soil, reflecting its evolutionary strategy as a specialist in harsh, dry habitats.
In terms of climatic and soil requirements, Sedum pulchellum demands excellent drainage to prevent root decay. While it is highly drought-tolerant, it performs best when provided with full sunlight and well-draining, slightly rocky or sandy soil. It is well-suited for temperate climates and can withstand significant temperature fluctuations typical of its native range.
Agricultural and horticultural management involves minimal intervention. Regular weeding is necessary to prevent competition from taller plants that might overshadow this low-growing succulent. Fertilizer application is generally unnecessary and, if excessive, can cause the plant to lose its compact form. Proper spacing is key to maintaining healthy air circulation around the rosettes.
The primary use of this culture is in ornamental landscaping. It is highly valued for:
- Rock garden design
- Green roof installations
- Container gardening
- Erosion control on rocky slopes