As a rule of thumb, choose a well-drained upland area that is 70-80% shady, slopes toward the north or east.
Soil should not acidic. As a guide to appropriate sites, look for indicator plants, those that often grow among naturally occurring ginseng populations. Besides the usual deciduous trees (ash, basswood, elm, hickory, suga maple, red oak and white oak), herbaceous, perennials that incude the rattlesnake fern, spleenworts, jack in the pulpits, the May apple and wild gingers indicate suitable habitats.
Hope this helps.