Daffodils Come Up Blind

[pilates]

Does that mean they are no good and do I need to dig them up?

Did you plant them last autumn or before? Are the leaves plentiful and healthy? The commonest reason for them failing to flower after the first year is not planting them deep enough, or removing the leaves before they have died down

did you mow them before they died down last year?
they will come back. give them a feed (all purpose or tomato feed) and leave them until all leaves have died.

The leaves all have to be brown and floppy before you cut them back, they need to absorb energy through photosynthesis in order to flower the next year.
I currently have a whole lawn I cannot mow because it is full of naturalised crocus and snowdrops and none of the leaves have died back yet.

Yes we have had them for several years and no not mowed coz they are in borders. They were cut back after they had died a good. 6 weeks I think.

Did you cut them back leaves and all after the flowers were over? Best to deadhead the flowers and leave the leaves till they have lost all their green, and gone yellow and shrivelled. Until then the leaves are replenishing the bulbs for another flower next year. Give them a good feed and hope that in due course they build up strength and flower again.

Are they in a very dry and shady location? And/or did you deadhead them after they flowered in previous years?