Nice, I'm not the only one that missed adding a game end. ;)
But more seriously, your game is really nice. I like that the controls are right there in the game. The iconography is clear after only ~2 dead plants from each (too much sun, too much water ).
And it is nice to try to get some factory like working with trying to get your plants just cooked and watered enough before selling.
Only bug I encountered was some goo plant (over watered) that was still visible, but not affecting gameplay for some reasons.
What did you use for the vector art in Unity? Or also what vector art program did you use to do the art?
Have a great week :D