That was my initial reaction too, but then I thought about it... Spike talks to cacti, after all, which is somewhat thematically similar to Yuuka treating her sunflowers like people. It actually makes some small degree of sense, which is frightening.
They all think I have no friends and live alone in the wilderness...But I have lots of friends! I'm sure everyone will be surprised to know I do.Don't you agree, my tall, thin friend?Everyone calls me the "Youkai with the Lowest Human Friendship Level"* and the "Ultimate Sadistic Creature". *See Yuuka's article from Perfect Memento in Strict Sense.