Roscoea

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Trial of Roscoea 2008-2011 Entries receiving The Award of Garden Merit (H4) R. auriculata AGM (H4) 2011 [trial entries: 17, 18, 19, 20, 21, 22, 34, 92, 96] Entered by: R Zijerveld, RBG Kew, Avon Bulbs, Beeches Nursery, Bressingham Gardens and Hugh Nunn Foliage: Mid green (137A); Leaf features: Sheaths green, heavily vertically corrugated; Peduncle: Hidden in bracts; Flower colour: Lips purple (N82A), hood and lateral petals slightly paler, staminodes white mottled purple; Floral bract colour: Green, calyx white flushed purplish red toward tip, pale yellow green on edges to tip. The variation between these plants was small and within the group there were no poor plants. Good value plants that are vigorous and produce plenty of flowers over a long period. Roscoea Trial No. 1436 2
R. auriculata ‘Summer Deep Purple’ AGM (H4) 2011 [trial entry: 92 & 96] Entered by: Bressingham Gardens and Hugh Nunn Lots of lush growth and tall for an R. auriculata. Vigorous and bulks up quickly and could need fairly regular division, to prevent the plant keeling over when it gets overcrowded. Produced a lot of flower over a long period. A great garden plant. R. x beesiana AGM (H4) 2011 [trial entries: 28, 29, 30, 31, 32, 33] Foliage: Mid Green (N137A), thin dark red hyaline edge, especially to lower half of leaves and ligule; Leaf features: Sheaths green with red hyaline seam along back, heavily vertically corrugated; Peduncle: Green, glabrous; Flower colour: Very pale yellow, (paler than 1D), some flowers almost white with dull purple (N79D) splashing, this darkest on lips, yellower flowers with just a hint of purple in places; Floral bract colour: Green, red edged and tipped, calyx dull yellow flushed red, strongest at base and tips. The flower colour can vary from season to season and between clones. It will be covered in flower for a long time. The plants will bulk up well. Will continue to look good even in hotter periods when other Roscoea are starting to suffer. R. cautleyoides 'Himalaya' AGM (H4) 2011 [trial entry: 43] Entered by: R Zijerveld Foliage: Yellowish green, bit darker than 146A on lower leaves; Leaf features Sheaths green, glaucescent on lower leaf undersides and sheaths; Peduncle: Green, glaucescent; Flower colour: Pale Yellow (2D), veins and throat slightly darker (2C); Floral bract colour: Bracts and calyx green. Produces a substantial amount of flowers which are slightly paler than other types of R. cautleyoides. Roscoea Trial No. 1436 3
Page 4 and 5: R. cautleyoides 'Jeffrey Thomas' AG
Page 7 and 8: AGM’s to be reconfirmed: R. 'Kew
Page 9 and 10: R. purpurea f. rubra (syn. 'Red Gur
Page 11 and 12: Honourable mentions: The following
Page 13 and 14: The best time to move Roscoea is in
Page 15 and 16: suffer and produce few flowers. The
Page 17 and 18: Flowering times: Picture: These are
Page 19 and 20: Trial No. Award Plant Name Sender 4
Page 21: Source: Trials Office, The Royal Ho

Roscoea

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