I agree with tradivoro and sittingblue, a "parameter-based solid-growth plant generator" is the answer.

I doesn't have to be a full featured application like Greenworks' Xfrog. A simple hierarchy of editable paramatric elements would be already enough (something like treeMaker, treeGenerator or PantStudio).

I agree that "From Vue's existing plants we can already create an infinity of new plants", but what if I need a high-polygon model for close up ? Or if I want to reproduce a tree from my garden ? Loading pre-made low-polygons models with small variations is not enough. We really need a complete "plant editor" !

:) Eric