small cup?

this is probaly a stupid question but id rather it get answered then not knowing. if you were to grow a plant in a small plastic cup would the plant actually grow but just be a small one with a small harvest? or would it not even make it. sorry if it has been asked before.

If you put an apple tree in a small cup would you expect many big apples to grow? :)

It would be very small, dont think it would produce any buds you could smoke, maybe 1 spliff? Not worth the time tbh... But if you do dont use a clear cup the roots dont like the light.

well thanks for the answer