How to Prune common rasp-fern?
Remove dead or damaged fronds as required

common rasp-fern · Doodia media
Under glass grow in an open, humus-rich compost such as one part each of loam, medium-grade bark and charcoal, two parts sharp sand and three parts leaf mould, in bright, filtered light. Outdoors grow in moist, acid soil in sheltered, partial shade and protect from frost
Remove dead or damaged fronds as required