This is the result of slime secreted from the stems. You can put the daffodils on water seperately for 24 hours to extract most of the slime. Otherwise cut 1-2 cm. Add water with cutflowerfood regularly. When you receive roses, preferably keep them for 1 night in clean water wrapped in a wet newspaper in a cool place.
Large branches can use a lot of water.
Add water in time. This allows rehydration. Then treat as decribed above. Combinations with other bulb flowers usually decreases the vase life, especially with narcissus. We hope that through some of these tips you enjoy your flowers more then ever.