Answer: There are numerous possible reasons for the symptoms you have described, and based on your description it is impossible to determine the cause of the problem(s) with your daffodils. You might wish to contact the American Daffodil Society http://www.mc.edu/~adswww/ to see if they could suggest someone who could make an on-site diagnosis, or you might contact your County Extension (465-5115) to see if they can identify the cause and make appropriate control suggestions.
While daffodils are often considered "care free", some varieties do much better if divided periodically. In addition, too much shade, poor fertility, and competition from surrounding plants can all reduce bloom. Another common reason is failure to allow the foliage to go through its full cycle so it can grow, ripen and fade naturally after the blooms have faded. This is a very important period for the bulb as that is when it is replenished and rejuvenated for bloom the following year.
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