It was July 13, right in the middle of detasseling season. And it still takes 2-3 months starting in July. Source: I worked for Monsanto for 2 summers in college. Hybrid seed corn can have very different growing pattern/season than commercial sweet corn.And in Waterloo at least the crews tend to be mostly teenagers. The supervisors and field inspectors are college kids, and the seed techs and managers are full time employees that usually don't live in the area normally.