How to prune narcissus 'thalia'

As soon as flowers fade in mid-spring. Remove spent flower heads at the top of the stem. Leave stems and all leaves standing until completely yellowed and limp, then tidy away or lift for storage.

Annually after flowering. Narcissus 'Thalia', a white triandrus daffodil, needs only deadheading once its elegant nodding blooms fade. Remove spent flowers to redirect energy to bulb replenishment. Allow all foliage to die back naturally over 6–8 weeks — cutting green leaves early is the most common mistake and weakens the bulb significantly.

Remove spent flower heads at the top of the stem. Leave stems and all leaves standing until completely yellowed and limp, then tidy away or lift for storage.