American ginseng, Panax quinquefolius
 
American ginseng is highly valued for its medicinal properties, which has led to overharvesting. Therefore, this species is endangered in Canada and foraging and selling wild American ginseng is strictly prohibited. The offered plants are cultivated and can be sold. American ginseng is a slow-growing plant of humus-rich woodlands. It has attractive foliage with five distinct leaflets, green spring flowers and showy bright red berries in late summer. 
 
Ecology:
Red berries provide food for birds and small mammals.
 
Growing conditions:
In the wild, American ginseng grows in rich, well-drained, shaded woodlands. Direct sun can scorch its leaves, so dappled shade is ideal. To increase organic matter and build humus and insulate the roots from frost, leave the leaves in the fall and don't remove them in the spring. Let them decompose in place as nature does. Ginseng is an excellent indicator species for the health of a woodland. 
 
Good to know:
Ginseng leaves and berries are toxic to cats and dogs.