When should I prune spirea to ensure optimal growth and vitality? Is there a specific season that is more advantageous for this process, or does it vary depending on the species of spirea? For instance, might the timing differ between the spring-blooming varieties and those that flower in summer? What cues should I look for in the plant’s growth cycle that indicate it’s time to take action? Additionally, how does one discern whether a light trim is sufficient, or if more substantial pruning is warranted? Could environmental factors like climate or even the health of the plant itself influence the ideal pruning timeline? Furthermore, what are the implications of pruning too early or too late in the season? Are there specific techniques or tools that facilitate an effective pruning session, thereby enhancing the plant’s flowering potential and overall shape? Engaging with these considerations can significantly impact the aesthetic appeal of your garden.