Gallon plant of Cymbopogon flexuosus or Lemongrass. Lemon Grass is a great herb for making teas and is essential for most Thai cuisines. Grows to about 3 feet tall. Perennial bunching grass native to India and SE Asia, is often grown as an indoor plant or summer annual in the temperate north. Does well in pots. The stalks and blades are used extensively in Asian cooking and certainly lend a characteristic flavor. The plant prefers full sun and fast-draining soil. Hardy in zones 8 to 11.