Break the clumps apart by hand and pick out the bulbs. Throw away any soft, diseased or insect-damaged bulbs. Then rework the soil to about 12 inches. Set aside some unfertilized soil to cover the newly-located bulbs. Daffodil and tulip bulbs should be replanted four to five inches apart and six to seven inches deep.
Smaller bulbs can be a planted a little closer and less deep.
Water occasionally through the summer to foster rooting and growth necessary for spring bloom.