It was a simple enough reason. Neither Ophelia nor Laertes wanted to split up just yet, and since he had no need to get a real job, he stayed on here so she would have him nearby. On top of that- though she wouldn't discuss this bit- he was seeking to find her a match so she could get free of her engagement. The whole thing was uncomfortable, though at least there was no visible sign of it on her. She had no desire for a ring or anything like that. This wasn't a wanted marriage, after all.
A nod as she followed to the last greenhouse, pensive. This ingredient was much more sensitive and she would have to take a great deal of care with it. She knew it was typically used in poisons, but when one had blood that would not properly clot, it actually had the opposite effect and helped in healing, as it promoted the production of clotting factors.