Every species and variety we hold, by botanical name — with the family, the growing conditions and the UK hardiness rating for each.
Cichorium intybus f. albumCommon ChicoryAsteraceaeH7- Cineraria saxifragaAsteraceaeH3
Cirsium altissimumTall thistleAsteraceaeH7
Cirsium botryodesAsteraceae
Cirsium eriophorumwoolly thistleAsteraceaeH7
Cirsium japonicum 'Pink Beauty'Japanese ThistleAsteraceaeH7
Cirsium pendulumAsteraceae
Cirsium rivulareAsteraceaeH7- Cirsium rivulare 'Atropurpureum'plume thistle 'Atropurpureum'AsteraceaeH7
Cirsium rivulare 'Trevors Blue Wonder'Trevors Blue WonderAsteraceaeH7
Cirsium tuberosumAsteraceaeH7
Cirsium velenowskyiAsteraceae
Commidendrum robustumAsteraceaeH1a
ConocliniumAsteraceaeH4
CoreopsistickseedAsteraceaeH5- Coreopsis 'Butterfly Flame'AsteraceaeH5
- Coreopsis 'Limerock Ruby'PBRAsteraceaeH3-H6
- Coreopsis 'Razzle Dazzle' (Satin & Lace Series)AsteraceaeH5
- Coreopsis 'Sangria'PBRAsteraceaeH5
Coreopsis auriculata 'Superba'Lobed TickseedAsteraceaeH7
Coreopsis grandifloralarge-flowered tickseedAsteraceaeH7- Coreopsis grandiflora 'Badengold'Large-Flowered TickseedAsteraceae
Coreopsis grandiflora 'Early Sunrise'Early Sunrise TickseedAsteraceaeH5- Coreopsis grandiflora 'Goldfink'Large-Flowered TickseedAsteraceae
- Coreopsis grandiflora 'Mayfield Giant'large-flowered tickseed 'Mayfield Giant'AsteraceaeH7
- Coreopsis grandiflora 'Mayfield Giants'Large-flowered TickseedAsteraceaeH5
- Coreopsis grandiflora 'Sunburst'Sunburst tickseedAsteraceaeH7
Coreopsis maritimamidwinter sunflowerAsteraceaeH5
Coreopsis rosea 'Pink Lemonade'PBRAsteraceaeH5- Coreopsis rosea Twinklebells Sunrise ('P16132')Pink TickseedAsteraceaeH5
Coreopsis tinctoriadyer's tickseedAsteraceaeH5
Coreopsis tripterisAsteraceaeH5- Coreopsis tripteris 'Flower Tower'AsteraceaeH5
Coreopsis verticillatawhorled tickseedAsteraceaeH7- Coreopsis verticillata 'Grandiflora' ('Golden Showers')Golden Showers CoreopsisAsteraceaeH7
Coreopsis verticillata 'Moonbeam'tickseed 'Moonbeam'AsteraceaeH5- Coreopsis verticillata 'Ruby Red'Whorled TickseedAsteraceaeH5
Cosmos 'Rubenza'Asteraceae
Cosmos atrosanguineuschocolate cosmosAsteraceaeH4
Cosmos atrosanguineus 'Chocamocha'Chocolate CosmosAsteraceaeH4
Cosmos bipinnatus 'Diablo' (d)cosmea 'Diablo'AsteraceaeH3
Cosmos bipinnatus 'Lemonade'Garden CosmosAsteraceaeH4
Cosmos sulphureusSulphur cosmosAsteraceaeH3
Craspedia globosadrumsticksAsteraceaeH4- Cremanthodium brunneopilosumAsteraceaeH5
- Cremanthodium discoideumAsteraceaeH5
- Cremanthodium lineareAsteraceaeH5
- Cremanthodium nanumAsteraceaeH5