Understanding What Are the Minerals in Comfrey
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                According to an analysis of the 'Bocking 14' cultivar, comfrey leaves contain a remarkable 7.09% potash, which is a key source of potassium. This deep-rooted perennial herb is a powerhouse for gardeners and soil health enthusiasts, celebrated for its ability to draw essential minerals in comfrey up from deep in the subsoil.