Do not over-fertilize. Individual plants can also be grown in large containers, but these plants need more attention as the soil tends to dry out quickly. Watering Eggplants need generous moisture at all times. One inch of water each week is a minimum. This may vary, however, due to air temperature, wind, soil type, rainfall, and whether or not a mulch is used.
Sandy soils require more frequent watering.
Heavy soakings at weekly intervals are better than many light soakings as light, frequent waterings promote shallow root systems. Mulching will reduce water loss from the soil. Weed Control Weeds compete with eggplants for sunlight, nutrients and water. In the average home garden, weeds are best controlled when small with cultivation or mulches. In large plantings, herbicides can be used.