very nice, loved how many different plants there were with interesting synergies. presentation is great and I really like the concept, nice work overall!
the game can feel tedious and long, especially with such a high score to get to. adding a time limit could be interesting as it would force players to keep higher earning plants that have the potential to throw things out of balance quickly if left unchecked (instead of going with the tedious but safe strategy of low earning plants). Either that or have levels / waves / shop system to break up the core loop from feeling too long