it was a bl manga where one of the characters had flowers growing on his body?

it's called Hanahaki Disease
http://www.mangago.me/tag/Hanahaki%20Disease/

Yep probably this http://www.mangago.me/read-manga/tsubanakasu_haru/

yup i found it from there, thank you so much!!!

yup it’s that one, thank you very much (●'◡'●)ﾉ