Historically used as a soap and a detergent for textiles, often planted in mass around textile mills. Leaves and roots when crushed and boiled in water produces a lathery solution able to dissolve fats and grease.
I surmise the name Bouncing Bet has become more prevalent as its use as a soap diminished. I first learned the Bouncing Bet name from a field guide and still refer to it that way although Soapwort seems much more appropriate considering its history.
Found: Fields, roadsides, waste places, garden flower
Height: 1 - 2 feet
July - Sept bloom time