| 2026-06-08 | Something green in a greenhouse |
| 2025-02-05 | Audience member who might be in on the trick |
| 2023-08-06 | Nursery purchase |
| 2021-05-16 | - |
| 2020-01-05 | Confederate in an audience |
| 2019-03-26 | Nursery buy |
| 2018-05-02 | Purposely placed evidence |
| 2018-02-12 | Sow, as seeds |
| 2015-01-15 | Deliver, as a big kiss |
| 2014-10-09 | - |
| 2013-08-20 | Magician's assistant in an audience, say |
| 2011-04-06 | Place secretly |
| 2010-10-27 | Mole, e.g. |
| 2010-06-04 | One that shoots |
| 2010-01-26 | Factory |
| 2009-12-22 | Botanist's study |
| 2009-08-11 | Nursery purchase |
| 2009-07-06 | Factory |
| 2008-09-17 | Carnival shill, e.g. |
| 2006-03-30 | Undercover agent |
| 2005-11-04 | Mole |
| 2004-07-09 | Annual, e.g. |
| 2001-01-24 | Mole, maybe |
| 2000-12-23 | Many a housewarming gift |
| 1999-12-14 | Factory |
| 1999-07-16 | 4-Down, for one |
| 1998-08-30 | Not legitimate evidence |
| 1998-05-20 | Infiltrator, perhaps |
| 1996-06-24 | Manufacturing___ |
| 1995-04-16 | Insider of a sort |
| 1994-10-21 | Kind of kingdom |
| 1994-08-12 | Spy of a sort |
| 1994-02-20 | C.I.A. mole, perhaps |