Huron County boasts a rich collection of over 1000 species of flora. Along the shores of Lake Huron, sandy beaches support dune ecosystems characterized by hardy grasses like beach grass and marram grass. Moving inland, agricultural lands support vast fields of crops interspersed with woodlots of native and introduced trees and wildflowers. Wetlands and river valleys, such as those found along the Maitland River, support water-loving plants such as sedges and various species of ferns.

Plant biodiversity in Huron County, as in the rest of Ontario, faces several concerns, primarily due to human activities and environmental changes. Habitat loss and fragmentation, driven through agriculture and urbanization, can threaten natural habitat of many species. Additionally, pollution from industrial activities and agriculture may degrade soil and water quality, impacting plant health. The changing climate is altering temperature and precipitation patterns, influencing distribution and plant phenology. Furthermore, invasive species pose a significant threat through outcompeting native plants for resources, altering ecosystem dynamics, and introducing diseases.

When planting gardens and landscaping property it is beneficial to plant native species adapted to local climate and soil conditions. This helps provide habitat and food for local wildlife and preserve the natural balance of the ecosystem. Learning to identify and remove invasive plant species from your property and reporting sightings helps prevent their spread and protects native species and ecosystems. Also, minimizing the use of chemical fertilizers, pesticides, and herbicides when landscaping and gardening helps to reduce soil and water pollution.