Certified Professional Horticulturist (CPH) Practice Exam

How frequently should dormant plants be watered compared to active growth plants?

1. More often than active growth plants

2. Less frequently than active growth plants

3. Equally to active growth plants

4. Only in emergencies compared to active growth plants

The correct answer is: Less frequently than active growth plants

Dormant plants require less frequent watering than those that are actively growing due to their decreased physiological activity during the dormancy period. When plants are in dormancy, their metabolic processes slow down significantly, resulting in reduced water uptake and nutrient needs. This means that their roots do not require as much moisture compared to when they are actively growing, as the plants are conserving energy and resources during this time. Watering dormant plants too frequently can lead to over-saturation of the soil, which can cause root rot and other issues related to excess moisture. In contrast, during periods of active growth, plants require regular watering to support their increased metabolic demands, promote photosynthesis, and develop new leaves and flowers. Thus, it is essential to adjust watering practices according to the growth stage of the plants to ensure their health and well-being. Understanding this dynamic helps gardeners and horticulturists provide the appropriate care for their plants throughout the year, ensuring they thrive during their active phases while avoiding the risks associated with over-watering during dormancy.