Determine how much of your cornfield you'd like to feature in your landscape design. If your corn crop is very large, you'll want to concentrate on the part of the field that butts up against your lawn and that is visible from your house or the road to passersby.
Use a sheet of paper to draw your design scheme. Delineate in your paper the boundaries of the cornfield area that you'd like to accent with lighting. For example, you might choose to feature only the first row of corn, or perhaps a square section of corn out of a larger field of corn.
Do a site survey during the daylight to check the health of corn plantings you plan to use, and mark the area. Use a tape measure or even a long white string to cordon the featured area off. You will want to select the sturdiest stalks if you decide to wrap individual stalks in lighting.
Determine what you'll use to light your cornfield. The options for outdoor lighting are endless, with solar-powered lights being the best option for illuminating a natural landscape feature such as a cornfield. Solar lights both are energy-efficient and also require little attention once placed in the landscape.
For a special occasion such as an outdoor evening barbecue, consider wrapping individual cornstalks in green Christmas lights. If not using solar power, you'll need to source power from an electrical outlet and may need one or more extension cords. For a designer touch, place small disposable fiber optic lights in white, inside ears of corn as colorful accents whose slender filaments resemble corn silk. Also, consider making a lighted picket fence by stringing two or three rows of white lights in front of the lightscape. Wait until dark, then watch the magic come to light in your cornfield of dreams.