Red Seal Landscape Horticulturist Practice Exam

What characteristic is important for selecting plants in xeriscaping?

1. Preference for shade

2. Ability to tolerate drought

3. Need for high nutrient soils

4. Requirement for frequent fertilization

The correct answer is: Ability to tolerate drought

The preference for drought tolerance is a key characteristic when selecting plants for xeriscaping. Xeriscaping is a landscaping approach designed to reduce or eliminate the need for irrigation, particularly in arid and semi-arid regions. Drought-tolerant plants are specifically adapted to survive in low-water conditions, often featuring physical adaptations such as deep root systems, thick leaves, and other moisture-retaining characteristics. This ability to thrive with minimal water not only contributes to water conservation but also allows for a sustainable landscape design that withstands dry spells and extreme weather conditions. In contrast, plants that prefer shade, need high nutrient soils, or require frequent fertilization are typically not suited for xeriscaping, as they either necessitate conditions that are less sustainable or thrive in environments where water and nutrient availability are higher. Such characteristics can create challenges in water-conservation efforts and are not aligned with the primary goals of xeriscaping.