a bit more on wormwood (Artemisia)...
"In Harry Potter and the Philosopher's Stone, the first thing Snape asks Harry in Potions class is, "Potter! What would I get if I added powdered root of asphodel to an infusion of wormwood?"
According to the Victorian Language of Flowers, asphodel is a type of lily meaning "my regrets follow you to the grave," and wormwood symbolizes bitterness and sorrow. The entire question has a hidden meaning of "I bitterly regret Lily's death.""
