Daffodils require little maintenance after planting. That's one of the best characteristics of flower bulbs--they contain all of the structures and instructions needed to create beautiful flowers. Once sprouted, daffodils can be watered weekly during dry spells. However, spring rains usually provide all the moisture they need. Simply sit back and enjoy the display of yellow, orange, white or pink. Daffodils are a true easy-care bulb. After the flowers have faded, you may wish to fertilize your daffodils with a low-nitrogen, high-potassium fertilizer to help them perform again next year. Deadhead your daffodils by picking off faded flowers. Then, leave the foliage alone until it begins to yellow and lose moisture naturally. The late spring waiting period can be the hardest part of daffodil care, but a bulb's leaves need to die back naturally to allow the plant to photosynthesize as it goes dormant. The process takes around six weeks for most daffodil species. If you dislike the look of bloom-free daffodils, you can plant late-blooming flowers to hide the foliage through late spring. After the foliage dies back, just trim the leaves at ground level, in order to leave the bulbs safe and happy for next year. You may wish to add bonemeal to the soil for next year's blooms. Because daffodils are hardy and deer resistant, your work is done until the next growing season. These bulbs need to be lifted only if they've become dense or overly-clumped.