How to Prune rocket 'Wasabi'?
No pruning required

rocket 'Wasabi' · Diplotaxis erucoides 'Wasabi'
Grow in any moderately-fertile, moist but well-drained soil in full sun or part shade. Sow sucessionally for a constant supply of edible leaves and can also be grown as a cut-and-come-again crop. For more information see rocket cultivation
No pruning required