WJCO
Meme King
That's about when we planted. Ours isn't near that tall. Soil test and fertilizer are good too.When you plant definitely makes a difference but holy cow, 6' already?? LOL
We had to wait till our last frost which is typically Memorial Day but I'm pretty sure that Cindy got them planted just after that. Essentially about 1 month to the day. I wanna say that all the other corn in the area is a bit taller but not by much.
Weird thing is I had some random corn grow that I didn't plant from leftover deer feed mix. It's nearby and about as tall as yours.