Answer: It's possible they're overcrowded, but daffodils naturalize easily and don't mind being close to one another. Non-blooming might be the result of cutting the foliage too soon last year. The leaves help manufacture energy for the bulb to produce a bloom. If the leaves are not allowed to naturally wither and die, the bulb may not be able to bloom the following year. Allow the foliage of your daffodils to die down, then dig the bulbs and replant them. Amend the soil with some organic matter before replanting, and space bulbs 6" to 8" inches apart so you won't have to dig and replant them for another 3-4 years.
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