ButterflyConservatory

Like in title, how work this build ? I mean, i know how its working, but, area affect is stackable ? I mean, if i will build 2 conservatory for 1 tree, tree will give more fruits ? And than, 3 or 4 or 5 conservatory, will give even more _? ![Trollface ¦]](./images/smilies/troll.gif)
![Trollface ¦]](./images/smilies/troll.gif)