Cool concept and execution as per usual. Could just be major skill issue (it is) but I cannot get past wave 5 (ill probably come back later to try and beat that though). The one thing I don't really like is that not knowing what the enemy will do kinda just means you're often blindly throwing seeds in hopes it'll work. I tried a corpse flower + weeds strategy once to try and barricade the enemies into throwing away their plants, but because the corpse flower takes so long to set up they end up just plowing through anyways, especially since you can't deal any damage with it (which also makes the 20-turn limit a lot more threatening). I think if you at least showed like a thought bubble of all of the enemy's possible moves it could help with strategy a bit more. Again could just be skill issue.
Great art as usual and a super cool idea, will definitely come back later to try and not suck. Great job for a first GMTK!