A rough planting schedule that would provide about 10-14 days between mid season peak harvests between plantings would be to wait till most of the plants in the previous planting had 3 leaves before making the next planting. Reduces feeding damage to seeds and seedlings. In western Oregon, sweetcorn harvest ranges from about early August to mid October. The prime harvest season is from about August 25 to the end of September. In eastern Oregon harvest ranges from about mid July to the end of October with the prime harvest season being from about the first of August to the end of September.
Sweetcorn yields can range widely.
All sweetcorn, regardless of type, requires immediate cooling and refrigerated transport and handling. For fresh market corn harvest some of the harvesters have to be slightly modified so that they do not damage the butt portion of the ear. These modifications are generally easily made, and usually offered as options from the manufacturer. Sweet corn is seldom stored, although occasionally it may be desirable to store an excess supply temporarily. However, storage for more than a few days results in serious deterioration and loss of tenderness and sweetness.