How to Prune houseleek 'Crispyn'?
No pruning required

houseleek 'Crispyn' · Sempervivum 'Crispyn'
Grow in poor to moderately fertile, sharply drained soil in full sun. In pots use a 50:50 mix of loam-based potting compost and grit. See hardy cacti and succulent cultivation
No pruning required