Caltha palustris ,

Campanula punctata  'Beetroot'

Carex buchananii ( AGM)

Carex commans 'Bronze Form'

Carex sylvatica

Carex testacea 'Prairie Fire'

Carex 'The Beatles'

Caryopteris x clandonensis 'Thetis' Caryopteris x clandonensis 'Thetis'

Cerinthe major 'Purpurascens'  Cerinthe major 'Purpurascens'

Centaurea atropurpurea  Centaurea atropurpurea

Centaurea 'Black Ball'

Centaurea  'John Coutts'

Centaurea montana 

Centaurea montana 'Violetta' 

Centaurea macrocephalum Centaurea macrocephala

Chionodoxa forbesii 'Pink Giant  Chionodoxa forbesii 'Pink Giant'

Chrysanthemum 'Dernier Soleil' Chrysanthemum ' Dernier soleil'

chrysosplenium macrophyllum  Chrysosplenium macrophyllum

Cirsium rivulare 'Atropurpureum'  Cirsium rivulare 'Atropurpureum'

Clematis 'Artic Queen' Clematis 'Artic Queen'

Clematis Blue Pirouette = 'Zobluepi' (PBR) 

Clematis ' Hagley Hybrid' 

Clematis ' Kiev' Clematis 'Kiev'

Clematis tangutica ' Last Dance' Clematis 'Last Dance' (Tangutica-Group)

Clematis mandshurica 

Clematis 'Multi Blue'  

Clematis 'Purpurea Plena Elegans'  Clematis 'Purpurea Plena Elegans' ( Viticella-Group) AGM

clematis jack 'Rhapsody' Clematis 'Rhapsody' ( Jackmanii Group)

Clematis recta 'Purpurea' ,

Clethra alnifolia 'Pink Spire'  Clethra alnifolia 'Pink Spires'

Corydalis ochroleuca 

Crocosmia ' Lucifer'  Crocosmia 'Lucifer'

Crocosmia 'Twilight Fairy Crimson' 

Crocus 'Ruby Giant'  Crocus 'Ruby Giant'

Daphne x burkwoodii 'Golden Treasure   Daphne x burkwoodii 'Golden Treasure'

Daphne tangutica ( AGM)

Delphinium 'Alice Artindale' 

Delphinium x bellamosum 1 Delphinium x bellamosum

Deutzia × hybrida 'Strawberry Fields' ( AGM) 

Dianthus carthusianorum  Dianthus carthusianorum

         

 

Dianthus knappii  Dianthus knappii

Dicentra formosa 'Langtrees'  Dicentra formosa 'Langtrees'

Digitalis purpurea