Invasive.org explains who should care about invasive species. Hikers, Campers: Invasive plants, such as kudzu, English ivy and Japanese stilt grass can grow over trails and make them harder to follow and navigate through. Natural beauty is reduced by invasives. … Many invasive plants make hiking, camping, and other outdoor activities unpleasant. Exotic stinging needle … can take over camping sites, making it hard to find a good spot to camp.