Lovely artstyle, and idea with seasons affecting a seed is simple yet very well explored :D With some polishing could as well serve as cute little full title :D
I'd love to have some easier difficulty loop that teaches you what season does what, because I had to go back and forth to tutorial, to read what happens and didn't realize that I have to hold J to teleport back to spring seed. I think delivering all this information gradually during levels, not with wall of text would make it much easier to grasp. And I also had a bug and wasn't always able to plant a seed.
But overall I enjoyed it, well done <3