Welcome to the forums! Make sure you stop by the New Member thread and introduce yourself to everyone 
Liking the sound of your concept so far! It sounds like you’re aiming for this to be more of a cooperative game. Do you have an idea for a “Win Condition”? Or will it be mostly about keeping the trees alive as long as you can before they die? I’d be glad to playlets this for you but I’m currently only rolling with 6 blinks… Hopefully someone else on the forums can give it a try!
On a side note, there is someone on the forums exploring a similar concept, though it’s less of a game and more like a simulation (Terrarium). Might be worth taking a look at!