Why Is This Important?
Portland Parks & Recreation (PP&R) cares for about 8,000 acres of natural areas that keep Portland's air and water clean, support wildlife, and provide unique opportunities for people to experience nature locally. Invasive plants such as non-native blackberry, ivy, and holly can reproduce rapidly and spread quickly. Plants like these take space, nutrients, water, and light from other plants; they degrade ecological diversity and decrease the habitat and scenic value of our shared public spaces. Once these invaders root and spread, it can take years to clean up the habitat, and many more years to re-establish the native plant community. Treating for invasive plants helps native species thrive and supports healthy natural areas for wildlife and people.