I downloaded all of the available FREE trees and other vegetations from the Unity Assets Store and “auditioned” them all in one scene. After looking at all of them, we never actually needed to buy any of this tree model if making a generic jungle is all we need. Generic tropical jungle is what I want to do, thus, no need to buy. Save money on other more important or “can’t get for free” assets.
But if your niche is fantasy or toon, you have to buy or create your own model because I hardly found good model in that genre.
Here are the free trees screenshots for your viewing pleasure.