[She understands the whole Transfiguration thing and she's totally willing. Hermione is always willing to help. Wouldn't be Hermione if she wasn't. So she nods.]

That sounds like a good start. I can try to find a book on Muggle plants at the library if you'd like. It might help you figure out which plants would work best to turn into wizarding ones.

[And failing that, she'll write one up herself!]