Can plant grow on mountains

of course they don't! mountains are caused when plate tectonics move further apart from each other, and therefore allow the magma underneath to come above the surface and form mountains or volcanoes.

They can be eroded after a period of time due to water rubbing against a mountian. So Possibly not

Another answer

There are different types of mountains - volcanic, fold and block mountains. Mountains are usually formed when tectonic plates collide not move apart. It is possible mountains can grow