I have a S.purpurea ssp. purpurea that has a seed pod that has accidentally been on since last year. It has gone through a winter on the plant. I harvested the seed today and have two questions:
1. Is the seed likely to be still viable?
2. If so, does the seed require stratification prior to sowing, (despite the fact that it has gone through a natural winter)?
Thanks in advance for your time.