 And so that needs to be in synchrony in order to maximize the number of kernels that will eventually develop on the ear. Corn silk colors can vary from yellow to purple to red depending on the genetics of the hybrid. Popcorn hybrids in particular often have vibrant purplish silks, but all silks eventually dry up and turn brown. Learn more about corn silk and the pollination process at livingthecountrylife.com. I'll see you in the country.