Varieties
Acanthus
Achillea
Aconitum
Actaea
Agapanthus
Alchemilla
Allium
Alstroemeria
Anchusa
Anemone
Aquilegia
Aruncus
Asclepias
Astilbe
Astrantia
Bergenia
Bletilla
Brunnera
Calla
Campanula
Canna
Chelone
Clematis
Convallaria
Coreopsis
Crocosmia
Dahlia
Darmera
Dicentra
Dodecatheon
Echinacea
Echinops
Epimedium
Eremurus
Eryngium
Eucomis
Eupatorium
Ferns
Filipendula
Geranium
Gillenia
Gypsophila
Helenium
Helianthus
Heliopsis
Helleborus
Hemerocallis
Hosta
Incarvillea
Iris
Kirengeshoma
Kniphofia
Liatris
Ligularia
Lilies
Monarda
Mukdenia
Paeonia
Papaver Orientale (Poppy)
Penstemon
Persicaria
Phlox
Polygonatum
Potentilla
Pulmonaria
Rheum
Rodgersia
Rudbeckia
Salvia
Sanguisorba
Sedum
Sidalcea
Thalictrum
Tradescantia
Tricyrtis
Trollius
Uvularia
Veronica
Veronicastrum
