Daffodils

They are known as Blind Mnr, they are congested, you should dig them up and split them, giving them more room to grow... Dee..

yes agree with dee or it could be that you cut the foliage down before they have had chance to set the new flower. leave the leaves on until they have turned yellow [ basically looking a mess!]. or do both :o)

Planting not deep enough can also cause blindness in daffs - the bulbs should be planted three times the depth of the bulb - which looks surprisingly deep when you plant them.