What type of plant root system is desirable for water-wise landscaping?

• A. Shallow and broad
• B. Deep and fibrous
• C. Extensive and surface-level
• D. Short and thick

Answer: (B)

A deep and fibrous root system is desirable for water-wise landscaping because it allows plants to access moisture from deeper soil layers. This characteristic is particularly beneficial in environments where surface water is limited, as these plants can thrive during dry periods by tapping into groundwater reserves. Moreover, deep root systems improve soil stability and health by promoting aeration and reducing erosion, while also enhancing the plant's ability to withstand drought conditions.

In contrast, shallow and broad root systems can lead to increased competition for surface moisture and can be more susceptible to drought stress. Extensive and surface-level root systems may result in poor water uptake during dry periods, as they rely on surface moisture that can evaporate quickly. Short and thick root systems generally do not provide the same level of access to water and nutrients, which could hinder plant health and sustainability in water-efficient landscapes.