The Cleveland Pear, also known as Pyrus calleryana ‘Cleveland Select’, is indeed considered invasive in Ohio. This cultivar is a popular ornamental tree due to its attractive white flowers in the spring and vibrant red foliage in the fall. However, its invasive nature has led to its inclusion on the Ohio Invasive Plants List.
I have personally encountered the Cleveland Pear in various landscaping projects and have seen firsthand its ability to spread and outcompete native plants. Its rapid growth and prolific production of fruits that birds readily consume contribute to its invasive behavior.
One of the main reasons the Cleveland Pear is considered invasive is its ability to cross-pollinate with other cultivars and wild pear species, such as the Bradford Pear. This hybridization can result in fertile offspring, leading to the spread of genetically diverse and potentially invasive pear trees.
The Cleveland Pear has a tendency to form dense thickets, crowding out native vegetation and reducing biodiversity. Its shallow root system also makes it prone to wind damage, and the trees can easily break apart during storms, posing a risk to nearby structures and landscapes.
Furthermore, the fruits of the Cleveland Pear are small and hard, making them difficult for birds to digest. As a result, they are often dispersed far and wide, allowing the tree to colonize new areas and further contribute to its invasive behavior.
To control the spread of the Cleveland Pear and other invasive pear trees, it is recommended to remove existing trees and replace them with native species that provide similar aesthetic qualities. Regular monitoring and management of seedlings and saplings is also crucial to prevent their establishment and further spread.
While the Cleveland Pear may be visually appealing, its invasive nature poses a threat to Ohio’s native ecosystems. It is important to be aware of its potential negative impacts and make informed choices when selecting trees for landscaping projects.
