O'Hara | Black
Have you really never heard of Queen Victoria? I suppose it is because you are an American. Naturally there are things my father doesn't know, but children ought to trust and obey their parents.
Let me put it this way. I think you are a decent fellow and you want to help sick people. I also know, with certainty, that muggles exist who would take that information you are collecting and use it to hurt magical people, or to kill them before their magic had even manifested itself. Your work would make theirs a lot easier, wouldn't it?
No, I think it's a splendid idea to catalogue the plants. That won't harm anybody. I am going to be planting some soon, to teach Sirius about how they grow.