When should I cut off the flower scapes?
To many this is more a matter of taste than science. However, the longer the scape remains on the plant and the plant is required to provide nourishment to the seed pods, the less energy is being stored in the crown for future growth. Therefore, unless you are specifically hybridizing with a plant, you would be well advised to cut off the scape as soon as flowering is completed. Furthermore, some hostas, such as H. `Lemon Lime', have been found to rebloom in certain areas. Cutting off the flower scape as soon as possible tends to increase the probability of rebloom for those hostas.