Good job making this, I enjoyed playing it! I think the graphics are good. The little alien creature is cute, and the plants have enough variety to feel interesting. The music might be a little repetitive, but for the short duration it took to finish the jam version it was no issue.
I think the plant mechanics works, but could be expanded. Maybe the orders could have a variety of traits they're looking for in the plants, like 4 heal + 2 aesthetic to make trimming and splicing feel more worth doing.
Hope you had fun making the game :)