Invasive plants harm native plants.
Invasive plants are non-native species that are introduced to an area, either intentionally or accidentally, and cause harm to the local environment. They displace native plants, they alter ecosystems, disrupt food chains, and threaten biodiversity.
Why Are Invasive Plants Harmful?
Invasive plants thrive in areas where they lack natural predators, allowing them to grow and reproduce rapidly. In their native environments, these plants are kept in check by herbivores, diseases, and other ecological factors, but when they are introduced to new areas, they can dominate the landscape. This aggressive behavior leads to a variety of problems for local ecosystems.

One of the key issues with invasive plants is that they compete with native plants for space, sunlight, water, and nutrients. Over time, they can completely replace native species, reducing the diversity of plant life in the region. This can also lead to a reduction in the number of insects, as many native insects are specialized to feed on specific native plants. Since these insects are a food source for birds and other wildlife, the entire food chain can be disrupted.

Common Invasive Plants in Missouri
The Missouri Conservation Department has taken steps to address the problem of invasive species by adopting an Invasive Plant Assessment, which identifies plants that are particularly harmful to local ecosystems. Some of the most common invasive plants in Missouri include: Bush Honeysuckle, Callery Pear (Bradford Pear), Johnson Grass, Kudzu.
Invasive plants pose a serious threat to Missouri’s ecosystems, but with the right knowledge and action, we can help prevent their spread. By choosing native plants, removing invasive species, and supporting conservation efforts, we can protect the health and diversity of our natural landscapes.
To learn more about invasive plants in Missouri and what you can do to help, visit resources like MOInvasives.org.