Eggplant is a cold-sensitive vegetable that requires a long warm season for best yields. The culture of eggplant is similar to that of bell pepper, with transplants being set in the garden after all danger of frost is past. Eggplants are slightly larger plants than peppers and are spaced slightly farther apart. Eggplant requires careful attention for a good harvest. Small-fruited, exotic-colored and ornamental varieties can be grown in containers and used for decorations.
In the Garden
Eggplant is best started from transplants. Select plants in cell packs or individual containers. It is important to get the plants off to a proper start. Do not plant too early. Transplant after the soil has warmed and the danger of frost has passed. Eggplants are more susceptible than tomato plants to injury from low temperatures and do not grow until temperatures warm.
Space plants 18 to 24 inches apart in the row, or even closer for small fruited types. Three to six plants are usually sufficient for most families unless eggplant is a favorite vegetable, eaten often. Allow 30 to 36 inches between rows or space plants 24 inches apart in all directions in raised beds.
Harvest the fruits when they are 6 to 8 inches long and still glossy. Use a knife or pruning shears rather than breaking or twisting the stems. Many eggplant varieties have small prickly thorns on the stem and calyx, so exercise caution or wear gloves when harvesting. Leave the large (usually green) calyx attached to the fruit. When the fruits become dull or brown, they are too mature for culinary use and should be cut off and discarded. Over mature fruits are spongy and seedy and may be bitter. Even properly harvested fruits do not store well and should be eaten soon after they are harvested. Large, vigorous plants can yield as many as four to six fruits at the peak of the season.
In the Kitchen
Cooked eggplant soaks up a lot of oil. As the air rushes out of the cells oil rushes in to take it place. Many cooks insist on salting and pressing (or just draining) the air and water out before cooking. Getting rid of the air means it will absorb less oil during cooking. Salting also reduces the water content which reduces the amount of water leeched out into the dish. If you salt prior to cooking, rinse and pat dry to prevent excessive salt in the end product. Adjust the seasoning in the recipe to compensate for the salt remaining on the eggplant.
Then there is the issue of whether or not to peel the eggplant. Peeling should depend on how the eggplant is used in the recipe. If you never peel, selection becomes extremely important. Young tender eggplant is a must as older tough skin takes longer to cook and by then the flesh is overcooked.
Eggplant can be baked, grilled, steamed, or sauteed. It is versatile and works well with tomatoes, onions, garlic and cheese. The only way eggplant is unacceptable is raw.