Overview. You will know it is time to divide your daffodils when the plant produces a lot of foliage and small flowers. This is nature's sign that the daffodil needs to be divided because the soil does not have enough nutrients to feed the bulb mass. When this occurs the plant will start sacrificing flowers to survive.By dividing daffodil bulbs, you will perk up the plant and reap larger, healthier blooms.his is nature's sign that the daffodil needs to be divided because the soil does not have enough nutrients to feed the bulb mass. When this occurs the plant will start sacrificing flowers to survive. By dividing daffodil bulbs, you will perk up the plant and reap larger, healthier blooms.