Bravery and protection, eh? Well, talk about ironic given the less popular translation of Alastor's name...

"I do, actually," Alastor said. "I know you wouldn't think so for looking at me -- " He waved a clawed hand for emphasis after carefully tucking the pot into the crook of his other arm. " -- but I have an interest in plants. A lot of the spellwork I've used since I was alive required rituals cast using plants for starters."