How to Grow Corn in Planters

Start a potted corn plant from a nursery seedling. Alternatively, germinate a kernel inside a 6-inch pot. Do not sow the seed in the 15-gallon container the mature plant will require. Transplant the corn to subsequently bigger pots as it develops.

Grow corn in a well-aerated potting mix to provide quick drainage of excess water. Soilless blends or mixes containing peat moss or other fibrous material are good options.

Water the containerized corn plant as often as twice a day to keep the soil from drying out. Mist the foliage with water.

Place the planter in full sun all day for the highest yield.

Transplant the corn to the next pot size whenever the roots start growing out through the drainage holes. Stretch the roots out gently with your fingers before repotting.

Feed potted corn plant a 12-15-15 fertilizer and liquid seaweed once weekly. Apply both nutrients according to the rates listed on the manufacturer's label.

Locate the plant's tassels -- the pollen-producing male flowers -- at the tip of the corn stalk. Gather them off the corn by hand. Shake the flowers to collect the pollen inside. Dust the female flower -- the corn silk -- with the pollen to fertilize them, promoting corn production.

Harvest the ears of corn after the corn silk turns brown, which occurs around three weeks after the silk develops. The corn husk should still be green, not yellowing and dry. Store corn for up to five days at near-freezing temperatures.