Zoro had split from them at the last island and gotten into those flowers Breathing in its spores is really deadly under certain conditions those conditions being ‘unrequited love’. two months later zoro was coughing up white flowers with blood and while he was hanging his head over the ship railing coughing

Zoro: “These damned flowers!” he cursed as he wiped the blood off his mouth with the back of his hand and leaned against the railing as he drank his sake