How to Prune Australian glow worm grass?
In lawns, regular mowing can prevent the development of flowers and seed heads; clippings should be removed to prevent spread. Rake before mowing to raise runners from the soil surface

Australian glow worm grass · Luzula campestris
Also known as: black head grass; chimney sweeps; cuckoo grass; field wood-rush
Prefers moist conditions, and often dies back by midsummer. Rapid growth and spread mean that this plant is generally considered a weed. Improving soil conditions can help fine turf grasses to compete, see coarse grasses in lawns for more advice
In lawns, regular mowing can prevent the development of flowers and seed heads; clippings should be removed to prevent spread. Rake before mowing to raise runners from the soil surface