Didn't expect to see a puzzle game this thorough in a game jam, well done! The mechanics are pretty interesting and I think you've visualized them well, also good job on guiding the player's hand through the first few levels. I got to the last level ( that was pretty challenging since I'm don't play puzzle games often) but unfortunately the game crashed lol, that happened in the web build. Either way, it was interesting to experiment with the seed placement and see what happens until you find the solution. Personally I wouldn't restart the whole level if the player made a mistake and maybe would add an undo button but limit it to some amount. Having to restart every time I made the wrong move kind of made me start memorizing the steps I take which may or may be not what you wanted from the player. Maybe this would make it too easy, so I'm not sure. I felt that reasoning about each seeds possible interaction with other seeds was pretty hard so sometimes it paid to just place seeds randomly until a solution kind of takes shape? Maybe I'm just impatient.
Either way, good game, smart design!