In its native habitat, lemongrass grows in full sun, even in hot climates. At least six hours of direct sun per day meets the plants' energy needs. Plants growing in shade will be sparse and may attract pests.
Lemongrass plants prefer rich, loamy soil. Create ideal soil by adding organic amendments like compost manure, and leaf mold before or at planting time.
Lemongrass is not drought-tolerant and requires regular irrigation throughout the growing season. Water once or twice weekly to keep the roots constantly moist. A 3-inch layer of mulch conserves soil moisture. Potted plants may need to be watered daily.
Plants are frost-sensitive and won't survive temperatures below 15F. Bring potted plants indoors when temperatures drop below 50F.
Feed lemongrass weekly throughout the peak growing season with a nitrogen-rich fertilizer or add a slow-release product with an NPK 6-4-0 at planting time. Alternatively, supplement nutrients by watering with manure tea or add a nitrogen booster such as bloodmeal.
