Possible Clues:

• St John's wort genus of plants
• The St John’s wort genus
• St John’s wort
• Yellow-flowered plant of genus that includes St John's wort
• Yellow-flowered plant of a genus that includes the St John's wort
• St John's wort genus
• Energetic copper in the middle of the motorway doing U-turn with the Korean Rose
• Highly excited, I am netting copper in shrub
• Plant Eric put in humpy ground
• My hip cure involved St John's wort