Not sure if its from the scratch I put in the feeder for turkeys or birds carrying over seeds from another food plot but I have some wheat growing in my feeder pen.

How long will it grow before the heat kills it?

July tops, as soon as it heads it's done

Its from the scratch.. just depends on were its planted.. if it gets enough shade then it can grow until fall... most likely once it starts hitting mid 90s pretty regular though... that's all determined on rain more than anything

its likely to be tough though... i still have oats from winter plot.. actually having to keep them mowed every week and a half...

there are huge fields of wheat about half mile away

This.