2025 Epimedium
2024 Helleborus
2023 Peach tree
2022 Anemone
2021 Penstemon
2020 Amsonia
2019 Baptisia
2018 Astrantia
2017 Geranium
2016 Veronicastrum
2015 phlox
2014 Salvia
2013 Aster
2012 Nepeta
2011 Campanula
2010 I Helenice
2009 Echinacea
2008 Scaly
2007 Veronica
Species, groups or families of perennials