How to Prune thyme 'Alan Bloom'?
No pruning required. Dead flower heads can be snipped off in late summer

thyme 'Alan Bloom' · Thymus 'Alan Bloom'
Grow in a sunny position in well-drained soil. If your soil is heavy or likely to sit wet over winter, grow in a \r\npot, in a soil-based compost with added grit. Remove fallen leaves that settle on thyme plants in autumn, to prevent rotting. See thyme cultivation for further advice
No pruning required. Dead flower heads can be snipped off in late summer