Unusual bush in my garden
I moved into a new home in may, it has a huge well stocked garden with full borders. There is a rather large bush in the border, it flowered around June with huge yellow flowers and the developed some rather large seed pods on the branches. Now the pods are opening and the seeds are the size of olives. Black and hard. Donay anyowho know what it is? When do I trim it back as it has really spread is summer, it currently stands over 2 meters high.