Well, they told me to patrol because SOMEONE had to and they didn't want to do it? Anyway from up high you can't tell. Even on the ground you need to be looking sharp to see there's Diviner's Mint planted in that field because it's mixed in with something more ordinary.

If Neville had ever come for a visit, and had gone flying, and hadn't been put off by the smell (it's right by the Tannery), HE might have noticed. I'm passable at Herbology but it helps a lot that in Herbology class they show you ONE plant to identify. You don't have to notice that there's something mixed in with the tomato plants that's not just weeds.