Spikenard
is a curious woodland plant that is apparently related to Ginseng.
From the woodlands of North America, spikenard
prefers a rich organic soil and part shade and can reach up to 1 m or so when it flowers.
These are white and produced in clusters in July followed by reddish to dark purple berries at the end of the summer, it makes a good plant for a dry shady spot under trees.
Although the berries are edible, we have been unable to find out what you do with them. The roots however are used cooked and in beer making.