Should I throw away the daffodil bulbs if they don't blossom anymore? No blossoms for two years now?

You may be cutting back the green tops too early. They need to die off in order to feed the bulb each year.

Should I throw away the daffodil bulbs if they don't blossom anymore? No blossoms for two years now?
Well how long have you had these bulbs were they in a pot or were they in the ground. If you are a sucker like me for a plant that needs some help I would transplant them to a different area and see if you get some new growth on them some times a little shock like being transplanted wakes the plant up. But if you are tired of dealing with them go ahead and get rid of them. On the other hand if there are alot of bulbs together that have just multiplied and have not been separated in a long time you need to divide the bulbs(separate them) and plant them as a single bulb in stead of a mass. They can become kind of dormant if there are to many together. I have had flowering daffodils in my yard-same bulbs- for over 15 years.
Reply:Daffodil bulbs, as with all bulbs, should be dug up when the foliage is just about completely gone each year, and then replanted while the ground is still cold. (late winter/early spring) depending on where you live. You probably should throw them away if you are wanting flowers this year.
Reply:Are they growing outside in plenty of sun? Are there a lot of green straps (leaves) but no flowers? Then the bulbs have multiplied and are too small and crowded together to flower. You need to dig them up, separate the bulbs and replant, giving them space to grow bigger. Here's a link with all the info you need about replanting daffodils.
Reply:They may need separating. When there are too many together, they won't bloom. Also, are they getting enough sunlight?
Reply:yes they are no good
Reply:i would get rid of them.they are no good.