Daffodil bulbs return each spring with bright yellow blooms, while underneath the soil they busily produce new bulbs. Eventually, the spring will come when your daffodils don't flower as profusely as usual. Daffodil bulbs need to be dug up, divided and replanted approximately every three years or the crowding caused by the new bulbs prevents flowering. You might also wish to replant the bulbs to a new area of your garden, especially if your landscaping design has changed. Wait until the daffodils stop flowering and the foliage has begun to yellow, usually early to midsummer, before digging and replanting.
Dig around each clump of bulbs, leaving the leaves intact. Dig about 8 to 10 inches down in a circle around the bulbs. Lever the spade under the bulbs and lift them out of the soil.
Pick up the bulbs by the leaves near where they emerge from the bulbs. Gently brush off the excess soil from them.
Divide the clump of bulbs. Look for two or more bulbs that are attached. Grasp one bulb in one hand while holding the other bulb in the other. Twist or pull gently until the bulbs snap apart.
Prepare a well-drained garden bed in full to partial sun. Lay a fresh 2- to 3-inch layer of compost onto new or existing beds and work into the soil to improve drainage and soil nutrition.
Dig replanting holes for each bulb to a depth four times the width of the bulb. Space holes 5 inches apart.
Place each bulb in a hole with the root side down and the leaves on top. Fill in the hole with soil and firm lightly with your hand.
Water the bulbs well. Don't remove the leaves until they yellow completely and die, as they are storing nutrients for next spring's blooming period.