White beak-sedge thrives in consistently moist to wet soil. Water regularly, ensuring the substrate remains saturated, especially during warmer months.

Avoid allowing the soil to dry out completely, as this can stress the plant. Adequate moisture is crucial for its wetland habitat mimicry.

Pruning is generally not required for white beak-sedge. Remove any dead or damaged foliage as needed to maintain a tidy appearance. This can be done at any time of year.

Avoid heavy pruning, as it can detract from the plant's natural form.

Propagation is typically done by division or from seed. Division of established clumps in spring is the easiest method. Seeds can be sown in moist, acidic conditions and may require stratification.

Patience is key for successful seed germination.

Repotting is rarely necessary for white beak-sedge, especially when grown in its preferred boggy conditions. If container-grown, repot only when the plant becomes severely root-bound, usually every 2-3 years, into a larger container with a suitable acidic, moist medium.