Ohio is home to approximately 2,300 vascular plant species, with around 78% being native. These native plants have always existed in Ohio, contributing to the state’s rich biodiversity. However, about 500 species, or 22%, are non-native, introduced for various purposes such as soil erosion control, horticulture, forage crops, culinary and medicinal uses, or accidentally by humans.
While many non-native plants remain localized, a few become invasive. Invasive species are characterized by their ability to reproduce rapidly and their lack of biological controls in the new ecosystem. This leads to significant ecological disruptions, as invasive plants outcompete native species, reduce biodiversity, and alter ecosystem processes.
The impact of invasive species is profound. A diverse, healthy ecosystem is essential for clean air and water, soil stability, and providing food and shelter for wildlife. Invasive species compromise these functions, posing threats to the environment, economy, and even human health. For instance, Ohio has faced approximately $7 billion in timber losses due to the invasive emerald ash borer and $13 billion in agricultural losses due to invasive insects.
Invasive species are pervasive, often seen in landscaping, along roadsides, in parks, and in yards. To combat their spread, it is crucial to spread awareness, clean equipment used at different sites, wash hiking gear, monitor new populations, discourage the use of invasive plants, and promote the use of native species. By converting even one yard out of ten to native plants, we can support wildlife, as native plants serve as host plants for butterflies and insects, which in turn support larger animals like birds.
More diversity in nature strengthens ecosystems and, ultimately, benefits us all. June 12th Pickaway County Parks District held a volunteer event to eradicate invasive plants from the front garden beds and spent time planting Ohio native trees, shrubs, ferns and flowers. If you are interested in learning the difference between invasive, natives and how to tell the differences please join us at one of our invasive removal volunteer event or native landscaping planting days. Let’s work together to protect Ohio’s natural heritage and create a healthier, more sustainable environment.
Looking for ways to get involved in park activities? Visit our website or contact Meghan Ellis at mellis@pickawaycountyohio.gov for more information.