How to Prune paniculate restio?
Not usually required; old stems may be removed

paniculate restio · Restio paniculatus
Under glass, grow in a preferably acidic, loam-based compost in full light. Water moderately when in growth during the spring summer and early autumn, sparingly at other times. Plants may be placed outside in the summer in frost-prone areas and brought back under cover in the autumn, where they should overwinter in cool temperatures and low atmospheric humidity
Not usually required; old stems may be removed