Nice theory!
Or maybe because Hoban said he liked plants?
(⊙…⊙ )omg...........
i don't think he would do a nice thing since he seems to be a vengeful person who doesn't wants yohan to be happy with other people; and it would be a twisted thing to do since he hit it with a plant, don't you think? ... but who knows! maybe the author will say something about it in the next chapter? sure he is a strange character!
so could it be that he's sending yohan plants to keep him remembering what he did? because he wants yohan to feel guilt about what happened between the two of them?