They look similar and grow the same way, and are processed in the same manner too. But, scientists say, Citronella is not for consumption while lemon grass is known as a herbal tea drink.

I filled the jug with lemongrass until it came up to the 2-cup mark and then poured in 2 cups of water and let the blender go for 3 minutes on high, stopping halfway to check on the state of things.