Brahmi, a traditional herb used in ayurvedic medicines of India, is better known to Americans as water hyssop or the herb of grace. Botanically identified as Bacopa monnieri, it's native to southern China and Central America and now grown widely across the world.
Brahmi looks like a wetland weed. It grows as a low, spreading mat 4 to 6 inches tall and 3 to 4 feet wide. Distinguishing features include the waxy stems and tiny, shiny green leaves and tiny five-petaled white flowers. Each blossom is bell-shaped and may attain a pale blue or light pink hue.
Plant brahmi in a sandy or coarse, loamy soil that is moist to wet. Ideally the soil is acidic in pH and the soil never sits in stagnant water. It grows well in containers like hanging baskets if soil remains constantly wet. Add compost to sand for added fertility.
A perennial, brahmi survives outdoors in regions where winter temperatures drop no colder than 10 degrees Fahrenheit. This correlates to U.S. Department of Agriculture hardiness zones 8 and warmer. Grow it as a summer annual or houseplant elsewhere.