Corn is ready to be picked once the ears have completed filled out, which typically occurs between 60 and 100 days after planting. Pulling back the husk should reveal a well-filled ear and kernels that are white or creamy yellow in color.
The ideal time to harvest passes quickly for most types of corn. Ears that are ready to be picked are rounded or blunt at the end rather than pointed. Silks begin to dry as the corn matures, indicating ripeness. Opening the husk to visually inspect corn may leave the ear at greater risk of damage from insects and birds.