| Arisaema | consanguineum | |||
| Astrantia | Dark Desire | |||
| Astrantia | Jumble Hole | |||
| Astrantia | Shaggy | |||
| Astrantia | Supernova | |||
| Astrantia | Superstar | |||
| Baptisia | Dark Chocolate | |||
| Baptisia | Vanilla Cream | |||
| Begonia | nigrescens | |||
| Begonia | Black Knight | |||
| Bergenia | ciliata | Wilton | ||
| Betonica | hummelo | |||
| Bouteloua | gracilis | Blonde Ambition | ||
| Briza | media | |||
| Bupleurum | falcatum | |||
| Bupleurum | rotundiflorum | Copper | ||
| Calamargrostis | Avalanche | |||
| Calamargrostis | brachytricha | |||
| Calamargrostis | Karl Foerster | |||
| Calamargrostis | Overdam | |||
| Calendula | Indian Prince | |||
| Camassia | Alba | |||
| Camassia | Sacajawea | |||
| Carex | buchannii | |||
| Carex | elata | aurea | ||
| Carex | testacea | Prairie Fire | ||
| Carex | Ice Dance | |||
| Cenolophium | denudatum | |||
| Centaurea | Black Ball | |||
| Centaurea | Snowman | |||
| Cerinthe | major var. purpurascens | |||
| Chamerion | angustifolium | ‘Album’ | ||
| Chasmanthium | latifolium | |||
| Chionochloa | rubra | |||
| Coreopsis | tripteris | gold standard | ||
| Coreopsis | verticilliata | Moonbeam | ||
| Corydalis | calycosa | |||
| Corydalis | omeiensis | |||
| Corydalis | temulifolia | Chocolate Stars | ||
| Corydalis | Blackberry Wine | |||
| Corydalis | Canary Feathers | |||
| Corydalis | Korn’s Purple | |||
| Corydalis | Purple Bird | |||
| Cosmos | atrosanguieneus | |||
| Crocosmia | Emily Mackenzie | |||
| Crocosmia | Okavango | |||
| Crocosmia | Twilight Fairy Crimson |
