Boosting daffodil flowering

If some of your daffodil clumps haven't flowered as well this year, chances are they're getting a little overcrowded. Carefully dig up the whole clump and split it into smaller groups of three or four bulbs each, then replant in new spots in the garden, enriching the soil first with plenty of well-rotted farmyard manure to get them off to a good start: you should have them flowering again from next year onwards.