A Tropical Herb, Lemongrass Seedlings Require Plenty Of Water To Survive In Their Form. The Further You Can Emulate The Plant's Native Nature In Your Own Greenhouse, The Greater The Prospects For A Healthy And Vibrant Citrus Plant.  Proper Irrigation Of Lemongrass Plants Is One Of The Main Elements Of Successful Cultivation. Daily Watering Is Advisable.  Lemongrass Plants Cultivated In The Container Must Be Irrigated Periodically To Conserve Soil Humidity. Be Sure That The Pot Used For Planting Has Sufficient Drainage Troughs To Avoid Boggy Soils.