What to do with your daffodils after flowering. It’s important to allow daffodils to die back naturally after flowering. Avoid cutting back daffodils or mowing over them. They need their leaves after flowering to photosynthesise and take back energy to store in their bulbs for next year. It is okay to deadhead the flowers though to ensure their energy goes back into the bulbs and not into producing seeds. If you cut back the foliage immediately after flowering, there is a chance that next year t