Possible Clues:

• Citrus source
• Citrus grove sight
• Grove planting
• Plant in a 2-Down grove
• Plant in a citrus grove
• Iodine found in chopped up elm, chestnut and linden
• Are still taking pulse, for example of Flora
• Approximately 167ft European plant
• Bearer of green fruit
• Where you might pick fruit while it's still green