I have recently grown the Rhody species "R. Tomentosm". These seeds came from the Amur river region in southeastern Siberia. They grew fast and got their first flowers in 6 months. I read everything on the internet about growing Rhody's and I want to get the seeds to plant for next year. Can anyone help me with what part of the plant I should cut during the fall so that I can get the seeds? Do I just cut off the little seedlings or do I cut the entire stem back. No one seems to have any information about this particular Rhody and when I contact the Rhody Society here no one returns my email. Thank you!