Having sweet corn knee high by the 4th of June in Newaygo County Michigan is a real challenge and I have only accomplished this 3 or 4 times since I started growing sweet corn in the 70′s. Of course it matters on how high your knee is from the ground and if you are wearing boots or going barefoot. One thing I found, it isn’t much of a challenge if you grow field corn because today’s hybrid field corn grows so much faster than the good tasting varieties of sweet corn–which are the only type we grow. This year we planted our first corn on April 23 and it is growing vigorously. I have a real shot at it making my goal of at least a few stalks being as tall as my knee by the 4th of June when I am wearing sneakers. While it will be warm through the Memorial Day weekend, cooler weather looks like it will get here later in the week. I will keep you informed of its progress. By the way, our early variety of Sugar Snap peas (Sprint) will be ready by the first of June.