Bob, k2, SE, and many more don't allow space age. But there are stand alone mods that add them back. One of them is the tree planter. That can be used just to plan trees, not even needing gleba stuff. So this would be perfect to growth trees. I mean, there is the green house and all, but that is a different way of producing trees and that one can easily produce more trees.... reason why this mod would be amazing to have
https://mods.factorio.com/mod/sei-agricultural-tower
