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ROSCOEA



Archive entry 28.05.06

Roscoea is a large genus of around 18 species, ocurring along the Himalaya, Western China and into North Vietnam. They are all dormant during the winter, and are often late coming into growth in the spring. In common with many plants from continental climates (hot summers, cold winters) they wait until temperatures are consisently high before starting into growth. The latest of them do not appear above the ground until late May, or even June. They grow vigorously during the warm season, if they are kept moist, and then die back suddenly in autumn to a short resting rhizome with fleshy roots. They are all cold hardy in the UK during winter, but they are susceptible to excess water in winter when dormant.

There is a certain amount of confusion surrounding them in cultivation. I have been growing all those I can obtain in the hope that things will become clearer. Sadly, that has yet to happen. I present here the names and plants as I grow them, and welcome comments on their identities.

31st July 2007
Identification problems have been eased by the publication of 'The Genus Roscoea' by Jill Cowley, The Royal Botanic Gardens, Kew. My copy has just arrived, and I will update identifications and names as I get a chance.

  • Roscoea alpina
  • Roscoea alpina CC1820
  • Roscoea alpina 'Leaping Salmon'
  • Roscoea auriculata
  • Roscoea auriculata 'Bressingham Form'
  • Roscoea auriculata 'Favourite'
  • Roscoea auriculata 'Floriade '
  • Roscoea auriculata 'Good Purple'
  • Roscoea auriculata 'White Cap '
  • Roscoea auriculata x thibetica
  • Roscoea australis
  • Roscoea australis Good Purple
  • Roscoea australis KW22124
  • Roscoea x beesiana
  • Roscoea x beesiana 'Alba '
  • Roscoea x beesiana Dark Form
  • Roscoea x beesiana 'Monique'
  • Roscoea x beesiana 'Pale Form'
  • Roscoea blanda T154
  • Roscoea brandisii
  • Roscoea brandisii Pale Form
  • Roscoea brandisii 'Purple Giant'
  • Roscoea capitata
  • Roscoea cautleyoides
  • Roscoea cautleyoides 'Blackthorn Strain'
  • Roscoea cautleyoides 'China White'
  • Roscoea cautleyoides 'Early Purple'
  • Roscoea cautleyoides 'Early Yellow '
  • Roscoea cautleyoides 'Himalaya'
  • Roscoea cautleyoides 'Jeffrey Thomas'
  • Roscoea cautleyoides 'Kew Beauty'
  • Roscoea cautleyoides 'Last Emperor'
  • Roscoea cautleyoides 'Mauve Form'
  • Roscoea cautleyoides 'Purple Giant'
  • Roscoea cautleyoides 'Purple King'
  • Roscoea cautleyoides 'Reinier'
  • Roscoea cautleyoides f tyrium
  • Roscoea cautleyoides 'Vanilla '
  • Roscoea cautleyoides White Form
  • Roscoea cautleyoides 'Yeti'
  • Roscoea cautleyoides Yunnanensis White Flower
  • Roscoea cautleyoides x purpurea
  • Roscoea cautleyoides x tibetica
  • Roscoea Chen Yi T482
  • Roscoea debilis
  • Roscoea forrestii
  • Roscoea 'Harvington Raw Silk'
  • Roscoea 'Harvington Royale'
  • Roscoea humeana
  • Roscoea humeana 'Inkling '
  • Roscoea humeana 'Long Acre Sunrise'
  • Roscoea humeana 'Lutea'
  • Roscoea humeana 'Rosemoor Plum'
  • Roscoea humeana 'Snowy Owl Seedling'
  • Roscoea humeana T150
  • Roscoea humeana T153
  • Roscoea kunmingensis elongatobracteata
  • Roscoea kunmingensis kunmingensis
  • Roscoea nepalensis
  • Roscoea purpurea
  • Roscoea purpurea 'Brown Peacock'
  • Roscoea purpurea CC1757
  • Roscoea purpurea 'Dalai Lama'
  • Roscoea purpurea KW13755
  • Roscoea purpurea 'Nico '
  • Roscoea purpurea 'Niedrig'
  • Roscoea purpurea 'Peacock'
  • Roscoea purpurea 'Peacock Eye'
  • Roscoea purpurea Purple Leaf Red
  • Roscoea purpurea 'Purple Stem'
  • Roscoea purpurea 'Purple Streaker'
  • Roscoea purpurea 'Red Gurkha '
  • Roscoea purpurea 'Rosemoor Form'
  • Roscoea purpurea rubra Green Stem
  • Roscoea purpurea rubra Red Stem
  • Roscoea purpurea 'Short Form '
  • Roscoea purpurea 'Tall Form'
  • Roscoea purpurea 'Vincent'
  • Roscoea purpurea 'Wisley Amethyst'
  • Roscoea schneideriana
  • Roscoea scillifolia 'Black Form'
  • Roscoea scillifolia 'Pink Form'
  • Roscoea scillifolia Pink x purpurea Brown Peacock
  • Roscoea scillifolia Pink x tibetica Pink
  • Roscoea sinopurpurea
  • Roscoea tibetica
  • Roscoea tibetica Pale Pink
  • Roscoea tibetica T147
  • Roscoea tibetica "yunnanensis"
  • Roscoea tibetica x beesiana Pale Form
  • Roscoea tibetica x cautleyoides Last Emperor
  • Roscoea tibetica x purpurea Brown Peacock
  • Roscoea tumjensis
  • Roscoea wardii