Watering:
Water it every few days or whenever the top inch of soil becomes dry. Lemon grass grown in containers typically requires more frequent watering, most likely every one to two days during the spring and summer.
Fertilizer:
For the best growth, lemongrass requires a nitrogen-rich fertilizer.
Re-potting:
Repot in the spring to buildup the soil.
Temperature:
Temperatures ranging from 10 to 33 degree Celsius are suitable for growing the plants, but temperatures between 25 and 30 degree Celsius are ideal.