You might plant an innocent little cutting, and within a few months or years it has insiduously taken over part of the garden. However, some of these plants are very attractive, so it becomes a containment issue, such as with seaside daisies, fishbone fern and in this case, English ivy. Left to its own devices up in the top tier of the back yard, it spread to such an extent that it was becoming a pest.
The giant mountain of mulch has helped spur me on to create places in which to spread it. It’s a win-win situation, getting rid of both the pile in the driveway and creating a new look for the back yard.