This game is so awesome, I think I now understand all, so when I play it with easy now, do you maybe know some other similar games like this, with plants? Or it can be something other just with the similar mechanism like here.
I´ve asked me the same, I searched a while and found "plant tycoon". take a look at youtube "how to donload plant tycoon" (yes, donload, not download)
(and sorry about my english )