Red Seal Landscape Horticulturist Practice Exam 2025 – Comprehensive All-in-One Guide to Certification Success

Incorporating a variety of plants and habitats is essential for ensuring biodiversity in landscape designs. Biodiversity refers to the variety of life in a particular ecosystem and is important for maintaining healthy and resilient environments. By selecting a diverse array of native plants, landscape horticulturists can create a balanced ecosystem that supports various forms of wildlife, including pollinators, birds, and beneficial insects.

A diverse plant palette also helps to mimic natural habitats, which can offer better support for local fauna and enhance ecological interactions. This variety can lead to more stable ecosystems as it reduces the likelihood of plant disease and pest outbreaks, ultimately leading to lower maintenance needs and less reliance on chemical interventions.

In contrast, planting only exotic species may disrupt local ecosystems, as these plants may not provide the necessary resources for native wildlife. Using synthetic fertilizers can lead to nutrient runoff and soil degradation, negatively impacting local ecosystems. Limiting plant variety can reduce the overall resilience and adaptability of a landscape, making it more susceptible to pests and diseases. Therefore, embracing diversity is the most effective strategy for promoting healthy landscapes and supporting broader ecological function.