Perennial Plant Association

2012 :: Brunnera macrophylla "Jack Frost" (Jack Frost Brunnera)

2011 :: Amsonia hubrichtii (Willow Blue Star)

2010 :: Baptisa australis (False Indigo)

2009 :: Hakonechloa m. "Aureola' (Japanese Forest Grass)

2008 :: Geranium 'Rozanne' (Hardy Geranium)

2007 :: Nepeta 'Walker's Low' (Catmint)

2006 ::Dianthus 'Firewitch' (Pinks)

2005 :: Helleborus x hybridus (Lenton Rose)

2004 :: Athyrium 'Pictum' (Fern)

2003 :: Leucanthemum 'Becky' (Shasta Daisy)

2002 :: Phlox 'David' (Garden Phlox)

2001 :: Calamgrostis 'Karl Foerster' (Reed Grass)

2000 :: Scabiosa 'Butterfly Blue' (Pincushion)

1999 :: Rudbeckia 'Goldstrum' (Black-Eyed Susan)

1998 :: Echinacea 'Magnus' (Coneflower)

1997 :: Salvia 'May Night' (Perennial Salvia)

1996 :: Penstemon 'Husker Red' (Beardtongue)

1995 :: Perovskia (Russian Sage)

1994 :: Astilbe 'Sprite (False Spirea)

1993 :: Veronica 'Sunny Border Blue' (Speedwell)

1992 :: Coreopsis 'Moonbeam' (Tickseed)

1991 :: Huechera 'Palace Purple' (Coral Bell)