Water Hyssop, Bacopa monnieri, is a perennial that produces small, white, bell-shaped flowers throughout the warm months. The leaves are small, oval, shiny and bright green. Water Hyssop is a very tight and pretty, low growing groundcover for moist to wet or flooded landscapes. It can be bare rooted into the media of backyard water features or used as a potted plant. This is a host plant for Peacock Butterflies.