Be Optimistic. The BACH flower essence Sweet Chestnut encourages the positive potential of hopefulness. Trusted by generations for over 80 years. Developed by Dr. Edward Bach in the 1930s, the 38 BACH ORIGINAL FLOWER REMEDIES each correspond to a different emotional state, and together form a system that he believed would cover the full breath of emotional experience. BACH ORIGINAL FLOWER REMEDIES is the only maker authorized by The Bach Centre and the only flower remedies sourced directly from Mount Vernon, the home of Dr. Edward Bach.