Watch your tulip blooms carefully. You will want to prune each tulip plant a day or two after the plant has finished blooming. If you wait longer than that to begin the pruning, the plant will continue to use energy to develop its seed pod. If you prune the plant promptly and remove the seed pod the plant will conserve that energy and put it toward an early bloom the following spring.
Pinch off the top of the tulip bloom with your fingers, or cut it off with pruning shears. You need to trim down about one inch to remove the seed pod.
Watch for any late blooming tulip plants. Prune those plants after they have finished blooming. For best results you want to trim each plant back as soon as possible after it has finished blooming for the season.