Answer: Daffodils may need to be divided every few years to maintain their blooming performance if they have become crowded. Other reasons for poor blooming would include lack of fertility (they should be fertilized with a complete fertilizer in very early spring just as they begin to appear, again right after they bloom and once in the fall while they are rooting); lack of sunshine (too shady a spot) to ripen the foliage in the spring; too hasty removal of the foliage before it has had an opportunity to replenish the bulb's strength. In spring, after bloom, allow the foliage to grow and fade naturally before removing it from the garden. Also, some varieties of daffodils do not do well if the soil is kept moist during the summer, they prefer to bake in dry soil. If you are watering the flower bed heavily in summer this may be contributing to reduced bulb health and vigor.
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