well its not actually a problem.
the intention of this post was to gather information of the best way to do a tree model, and people came up with some ideas,

then i built a tree trunk that has 96 faces, and at runtime will be ~15 of this trees visible at same time. I havent done it yet but now the question changed to will it be a problem?
15(models)*96(faces each) of a tree model at the same time and still render it between 50/60fps.(I cant test it right now but still want the main the original idea of the post which is to gather information about tree models/rendering)