Possible Clues:

• Hogwarts professor Remus, who’s a werewolf
• Flower of Wolves cut
• Hogwarts professor who was secretly a werewolf
• Fictional sleuth Arsène
• Spiky flower
• Flower, first of lilacs, out of bed at home
• Flowering fodder plant
• Plant, not in a bed, swamped by endless heather
• Left university with tot to raise -- one's usually found in bed
• Duck upset about erect garden plant