Species, groups or families of perennials
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
