Where are the seeds at on a rosebush?
Certified GKH Gardening Expert
The seeds for a rosebush are in what are called the Rose Hips. They form directly underneath the spent blooms on some rosebushes. Not all rosebushes produce rose hips. Here is a link to an article I wrote on rose hips for you: https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-hip-information.htm