What best describes the purpose of pruning shrubs at the right time?

Pruning shrubs at the right time is essential for enhancing their flowering qualities. This practice stimulates new growth, which is crucial for producing flowers. When shrubs are pruned during their dormant season or just before the growing season, it encourages the development of blossoms by removing dead, damaged, or overcrowded branches. By allowing sunlight and air to penetrate the plant more effectively, this promotes better health and flowering potential.

In contrast, improving soil quality, promoting healthy root growth, or reducing water usage do not directly relate to the timing and practice of pruning. While good soil and healthy roots contribute to a plant's overall vitality, these aspects are not the primary objective of pruning itself.