Alkanet root

Love the rich red color of the Rogan josh that your wife prepares, Alkanet does the magic. 
If red wine is your favorite, you have to thank Alkanet for the color

Originated in south Western Europe. In India, it is grown in Kashmir.
Medicinal Properties: 
Persistent coughs are relieved by the alkanet roots
Strengthens the back when concocted with wine
Acts as an agent to lift depression
Bruises can heal quickly by applying alkanet root
Kidney stones have been treated with the use of alkanet root