Responses
Umm... Is it this one
http://www.mangago.me/read-manga/glow/
Does the protagonist have bad luck? If so, then I believe the name of the manga is Glow!
The MC was blackmailed to join this shady club that's owned by two other guys, who are really good looking and use the clubs as an excuse to hang out. But the MC had a grandma who taught him gardening before he died, and so he has a love/hate for gardening. Slowly he starts to change the the club and grows close to one of the 2 guys.....that's all I remember.