How to Prune prickly rasp-fern 'Rough Ruby'?
Remove dead or damaged fronds as required

prickly rasp-fern 'Rough Ruby' · Doodia aspera 'Rough Ruby'
Under glass grow in an open, humus-rich compost 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