pump, this rock sits in a big planter and we have a water feature. I then took more planters and added herbs and flowers we now have private corner in our busy yard. I just like plants that produce food of some kind. Now if you have wild animals, bulbs planted they don't like them. Rosemary is beautiful, bug repellent and smells great. Trees are leaves and messes that way. I still like the clear wire and hang home made drapes off it.