Just found this forum, been taking care and harvesting roots on my land for 30 years, took a while, but learned a few things. Everyone thinks shade is the answer, but sun is needed to start growing. If you have no other berry producing plants nearby, chances are slim ginseng will start there. Some of the best plants I ever found were sun spotted in the morning at that spot the sun shown on it for a few minutes. The rare large plant with none around gets above other plants early in the year, the small plants do not make it.
Cut some trees, do a small selective cut and in 2 years you might see plants come out of dormancy, that could be for some years. The dormant plants could have been dormant for quite some time.
The big mistake I first made was planting seed where no other plants were located, little success.