The Thurso Shield is awarded for the Best Exhibit in Section 1 Pot Plants at the Annual Garden Show.
Winners of the Thurso Shield are listed below from 1997 onwards.
| Year | Thurso Shield |
| 2026 | Rowland Shallcross |
| 2025 | John Bingham |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | ~ no Garden Show ~ |
| 2020 | ~ no Garden Show ~ |
| 2019 | Amy Walker |
| 2018 | Angus Wares |
| 2017 | Ruth Shallcross |
| 2016 | J Mackenzie |
| 2015 | Cathy Stewart |
| 2014 | R Shallcross |
| 2013 | M Sutherland |
| 2012 | D Cameron |
| 2011 | Cathy Stewart |
| 2010 | Jenny Allan |
| 2009 | Jenny Allan |
| 2008 | Jenny Allan |
| 2007 | S Bruce |
| 2006 | Jenny Allan |
| 2005 | Jenny Allan |
| 2004 | Jenny Allan |
| 2003 | M Mathieson |
| 2002 | S Bruce |
| 2001 | V Bradford |
| 2000 | P Mackay |
| 1999 | P M Mackay |
| 1998 | S Bruce |
| 1997 | S Bruce |