How to Prune lettuce (butterhead) 'Roxy'?
No pruning required

lettuce (butterhead) 'Roxy' · Lactuca sativa 'Roxy'
Grow in full sun in moisture-retentive soil. Early and late sowings may need protection from the cold using fleece or cloches. See 'growing lettuce' in vegetable cultivation for further information
No pruning required