TNhunter, You're exactly right about the northern commercial seed. Most plants will expire after 4 or 5 years. I really don't know of any seed sources that might work in our climates. Maybe someone will post in our area. Castle's may be too far north.
Should the seeds from the plants I have planted grow in the same area? I'm trying to stratify some. Don't have a great number of plants for the amount of seed I've planted. Got it from a friend that ordered a lot for several people here in western ky. I ordered some on my own from a couple of different places this year.
i have experimented on this topic on a 12 yr study. THE VERY BEST THING TO DO FOR A MUCH HIGHER LONG TERM GINSENG HARVEST IS TO PURCHASE SEED FROM A SOUTHERN DEALER....most importantly the seeds you purchase must have been growing in that southern state for at least 5 yrs minimal !! THAT IS THE VERY MOST IMPORTANT ASPECT!!...oh my study did absolutely fine up north when i purchased seed from down south!! 85% long term sustained, excellent harvest from the southern seed......good luck you guys
If this study exists, I would very much like to read it. What is the title? In which peer reviewed publication was it published? What year? Some of those claims go against my experiences and feedback. So, if you have proof otherwise in a study, please let us see it.