Possible Clues:

• Environment promoting rapid development
• You no longer must wear breeches in sweaty place
• You must plug water source where heat encourages growth
• Steamy environment, with underwear inspiring you
• Plant-growing plant?
• Environment encouraging rapid growth
• It's not cold at home in the Botanic Gardens
• Environment aiding rapid growth or development
• Shout about garden around conservatory
• You invested in watering gear for part of garden