Fimbristylis microcarya prefers consistently moist soil. Water thoroughly when the top 1-2 cm of soil begins to dry out. Avoid letting the plant sit in standing water, as this can lead to root rot.

Reduce watering slightly during winter dormancy.

Pruning is generally minimal. Remove any dead or yellowing foliage as it appears to maintain a tidy appearance. This also helps prevent disease. Light trimming can be done to shape the plant if needed.

Propagation is typically done by division of established clumps in spring. Carefully separate the root ball into smaller sections, ensuring each section has roots and shoots.

Replant divisions immediately into suitable potting mix.

Repot Fimbristylis microcarya every 1-2 years, or when it becomes root-bound. Spring is the ideal time. Choose a pot that is only slightly larger than the current one, using a well-draining potting mix.