These trials are for exhibition dahlias. Cultivars are grown with some under covers and others in the open to best assess how they perform in differing conditions. Awards are given after a season’s judging, the overall best cultivar receiving the Harry Howarth Memorial Medal.
For more details or to submit cultivars for future trials, please contact Trials Co-ordinator: Mike Cunningham, 8 Wheathead Crescent, Keighley, West Yorkshire, BD22 6LX. e-mail: mhlc@blueyonder.co.uk
Trial Results 2018
| Gold Award |  | Aggie White (G.D.) a sport from Bryn Terfel, secured by Christopher White of Naul near Dublin |
| Silver Award |  | Clearview Cameron (M.S.C.) Raiser: Richard and Danielle Parshall of Washington State |
| Bronze Award |  | Westerton Ella Grace (Min.D.) Raiser: Gordon Hodgson |
| Bronze Award |  | Normandie Delight (M.Fim) Raiser: John Willott |
| Bronze Award |  | Westerton Sunset (S.D.) Raiser: Gordon Hodgson |
| Certificate of Exhibition Merit |  | Mary Margaret Row (M.D.) Raiser: Roger Day |
| Certificate of Exhibition Merit |  | Eastwood Bard (L.S.C.) Raiser: John Sharpe |
Previous winners of the Harry Howarth Memorial Medal are shown below:
| Year | Winning Variety | Type |
|---|---|---|
| 1985 | WHITE MOONLIGHT | M.S.C. |
| 1986 | CANDY BEAUTY | S.C. |
| 1987 | LADY KERKRADE | S.C. |
| 1988 | GRENIDOR PASTELLE | M.S.C. |
| 1989 | MARTIN TURNER | L.S.C. |
| 1990 | HILLCREST ALBINO | M.S.C. |
| 1991 | CRYFIELD KEENE | L.S.C. |
| 1992 | ANGLIAN WATER | Min. D. |
| 1993 | KENORA CHALLENGER | L.S.C. |
| 1994 | JEAN McMILLAN | S.C. |
| 1995 | AMGARD DELICATE | L.D. |
| 1996 | CARSTONE RUBY | S/Min. D. |
| 1997 | JOMANDA | S/Min. Ba. |
| 1998 | KELSEA CARLA | S.C. |
| 1999 | JANAL AMY | G.S.C. |
| 2000 | HILLCREST KISMET | M.D. |
| 2001 | PRIMROSE PASTELLE | M.S.C. |
| 2002 | MARYS JOMANDA | Min. Ba. |
| 2003 | SASCHA | S.W.L. |
| 2004 | ADAM CLARKSON | S.S.C. |
| 2005 | LAKELAND SUNSET | S.S.C. |
| 2006 | SHEP'S MEMORY | S.W.L. |
| 2007 | SUSAN GILLIOT | M.S.C. |
| 2008 | CARSTONE VALIANT | S. Ba. |
| 2009 | JEAN SHAW | G. D. |
| 2010 | WESTON STARDUST | Min. S.C. |
| 2011 | JOHN HILL | DG |
| 2012 | KILBURN GLOW | WL |
| 2013 | MS KENNEDY | LPom |
| 2014 | BLYTON VALENTINE | Min D. |
| 2015 | ASKWITH JOSEPHINE | M. D. |
| 2016 | GAVIN'S CHOICE | Small Dec |
| 2017 | JOSUDI AURORA | Min C. |
| 2018 | AGGIE WHITE | G. D. |