How to Prune daffodil 'Prototype'?
Deadhead as the flowers fade but allow the leaves to die down naturally

daffodil 'Prototype' · Narcissus 'Prototype'
Plant bulbs at one-and-a-half times their own depth in autumn, slightly deeper in light soils and in grass, in well-drained soil that is moist in the growing season in spring, in light dappled shade or sun. See daffodil cultivation for further advice
Deadhead as the flowers fade but allow the leaves to die down naturally