For best bloom results, Amaryllis need minimum 8 weeks of complete dryness. The leaves should yellow and die back completely and the outer covering of the bulb will turn brown and papery. That is as it should be. Any green growth during dormancy will seriously diminish the chances of good blooms. Resist the urge to water, even a little. Some folks "hide" their bulbs somewhere out of sight so they won't be tempted to add a little water!