With a moderate growth rate, eastern rough sedge exhibits consistent development through the Spring and Summer. Waxy, sword-like leaves increase in number and height, while the plant also matures with formation of greenish flower spikes. This growth speed allows eastern rough sedge to cope well with seasonal fluctuations, demonstrating resilience and adaptability. Interesting to note, eastern rough sedge's growth pattern subtly represents a survival strategy, optimising resources for steady development instead of sudden shoots. Care must be taken to ensure adequate space, as eastern rough sedge's moderate but continuous growth can encroach upon nearby plants.

In 1754, Lin Nai founded the true sedge genus. True sedge is also one of the main components of the flora in China. It is the dominant grass species in the lowest forest layer in many areas. In some forests, the lower vegetation is mostly true sedge.

Water: Originating from wetland habitats, eastern rough sedge thrives in consistently moist soil and requires weekly watering to maintain damp conditions without waterlogging. Preferring high humidity, eastern rough sedge is best suited for temperate regions during its active growing season.

Fertilize: Eastern rough sedge benefits from an annual spring top-dressing of compost or mulch for slow-release nutrients. Excess fertilizer can be harmful, so minimal additional feeding is encouraged. Incorporating enrichment gently into the soil supports healthy growth and a robust root system.

Pruning: Prune eastern rough sedge in early spring by removing dead or damaged foliage and older shoots at the base to encourage healthy growth and maintain shape. Avoid heavy pruning to prevent stress. Regular maintenance improves air circulation and enhances the plant’s vitality and aesthetic appeal.

Propagation: Eastern rough sedge prefers moist, rich soils and partial to full shade, thriving from division propagation. In early spring or fall, separate clumps, ensuring each has roots and shoots, and replant at original soil depth. Regular watering aids in stabilization and growth after division.