Nutralyfe Regain Similarly, burdock is extremely good for hair growth. Burdock nourishes scalp and increases blood flow to the roots on the hair generating better hair growth. Rosemary and clary sage are the two essential oils that have amazing affect for growth of hir when they are used together. For the very best results wash your hair daily using a mixture of herb water. The best herbs for this purpose are burdock, sage, rosemary, peach leaf, sage and nettle.