I read all the Beatrix Potter books as a kid in the early 1990s... I re-read them many times.
Soporific. But in this specific case, it's a compliment.__________________________________________I must share with you this wonderful passage from John Evelyn's Acetaria: A Discourse of Sallets (1699), quoted in McGee's On Food and Cooking:... by reason of its soporifous qualities, lettuce ever was...