How to Prune Himalayan fairy grass?
Remove dead foliage and old flowered stems in spring taking care not to damage new shoots. Cut stems can be left on the border as a mulch or composted

Himalayan fairy grass · Miscanthus nepalensis
Also known as: Nepal silver grass
Grow in any moderately fertile, moist but well-drained soil in full sun. Protect from excessive winter wet
Remove dead foliage and old flowered stems in spring taking care not to damage new shoots. Cut stems can be left on the border as a mulch or composted