StimulantHerbal Actions / By Karen Coe Stimulant herbs stimulate nervous system. I hesitate to make a general statement on stimulant herbs, as different stimulant herbs can effect different systems of the body. We will delve deeper as we study the herbs which contain this herbal action. Stimulant Herbs Calendula – Calendula officinalis L Share this:TwitterFacebookPinterestLinkedInPrint Like this:Like Loading...