The tassels are starting to spring forth from the tops of the corn plants. The tassel releases pollen into the air which falls onto the silks that develop below.
Proper pollination will set this silk in motion to become a full ear of corn. Planting density is an essential part of this process. It is recommended to plant at least five rows of corn to ensure that there is plenty of pollen in the air. Poor pollination will result in underdeveloped ears of corn.