Historical clue formulations

• Place for fast growth — 2021-09-24
• Breeding ground — 2005-08-20
• Place of rapid growth — 2004-02-17
• Greenhouse area — 2001-12-31
• Thermostat site, maybe — 2001-06-24
• Rapid growth area — 2000-12-10
• Greenhouse area — 2000-12-06
• Cousin of a terrarium — 1996-03-21
• Nursery — 1994-08-28