Korrin doesn't normally need much in the way of herbal supplies, but after offering people strong liquor and getting Chaya's recipe for a hangover cure, she's making an exception. There might not be enough to go around, and she doesn't want to overtax Chaya's generosity. It's as much for herself as it is for anyone who doesn't take her advice, of which she's sure will be plenty. So she'll send word to the garden and be waiting on the second floor of the tavern while writing letters. Might as well get those out of the way before her scouting mission in Emprise du Lion.