Sort of what everyone else said. This is a very situational question. We say "hop growing", but different hops grow at different rates and produce different yields at different times.
With this in mind it's hard to develop a uniform blanket answer.
Like others said, factor in weather, soil conditions, and water, and again it's hard to give a blanket answer.
I can tell you this. I have 13 different hops in a row in a raised garden. Same soil, same weather, same water.
My Newport is 8.5 tall. My Tettnang *just* broke ground. Was the Tettnang buried under leaves that were suffocating it? Yes. Did it not get any sun under those leaves? Yes.
Disregarding my Tettnang, is it still true my that my healthy Mt. Hood is 3' tall, that my Golding is 2' tall, that my Chinook is 7' tall.
There are so many factors and you have a right to be concerned, but factor in you new, your plant is young, and it's still early. Just keep doing everything right- water moderately, keep it mulched, but not buried. Give it time. You'll be fine.