Also, it is not enough just to remove the parts that stay above the ground. We also needed to pull out the rooted portions, which are the most important parts of the plants. They are still alive if their roots stay under the soil, and they can regrow vigorously. After the plant is completely pulled out, we stacked them into hills and used them as fertilizers when they dry out in the future. To better understand what I have done in volunteer service, it is helpful to understand two questions: what are invasive species and how do invasive species effect environment?
An invasive species is a type of species that is not native to a certain place and it has a tendency to spread uncontrollably to an extent that affects the local environment negatively. In this case, English Ivy is defined as an invasive species in Pacific Northwest, a region where Seattle is located in. English ivy is an evergreen climbing vine that natively ranges in Europe and western Asia. It “attaches to the bark of trees, brickwork, and other surfaces