I am looking at building a new duck pen at my new house, it's going to be black iron fencing, and they will have a pool, and a dog house inside. I dont have any predator issues, My entire backyard is fenced, and my dogs tend to keep any predators away, not to mention my Pekins are huge!!! They free range in the fenced yard with no issues. Around the new pen, I would like to put in a garden, I would really like herbs, and flowers to help keep bugs and smell to a minimum. No to mention, the pool will be draining into the gardens, a la natural fertilizer. Does anyone know of safe or harmful plants that can not be with in a ducks reach. I know zero fruit trees... And i cant grow grapes, i see alot of people on here do ( between dogs and not the right climate) But anything else would be helpful, I'm kinda clueless.