Eggplants are a unique fruit that grow best in full sun and hot weather. Like other members of the Nightshade family, eggplants should not be planted until all danger of frost has passed, and daytime temperatures are consistently warm. Be certain to use the black side of the mulch covers to speed soil warming and early growth. These globe-like fruits tend to produce very well in containers, especially if overnight temperatures are warm. If a cold spell is expected, use a frost cover to protect plants, or bring them indoors. Check water levels daily, since eggplants are heavy drinkers, and fruit may become bitter of they do not receive adequate water. Flea beetles are the most common pest, leaving tiny holes all over the plants' large leaves. When harvesting, be sure to use pruners, since the stems will not release the fruit without destroying the plant.