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RHS Award of Garden Merit Clematis

Here are all the clematis we stock which have achieved theRHS AGM Logo
Royal Horticultural Societies Award of Garden Merit.
This award is given to plants that have been submitted to the RHS for trial and proven to be particularly good garden worthy plants under a number of factors, including flowering ability, strength, disease & pest resistance. At Thorncroft we would only select and indeed sell clematis that we believe have these qualities but the AGM is a helpful guide to selecting excellent plants.

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  1. Clematis 'Ascotiensis'
    £11.25
    Clematis Ascotiensis is a wonderful old cultivar, introduced in the late 1800's is still one of the best and easiest mid mauvey-blue clematis for the garden. Learn More
  2. Comtesse de Bouchaud
    £11.25
    The mid pink flowers of this wonderful old clematis have a pretty satin sheen. The clarity of colour and simplicity of shape are what gives it such charm. Awarded the RHS Award of Garden Merit.

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  3. Clematis 'Jackmanii'
    £11.25
    A quintessential 'cottage garden' flower, whose gently nodding bluish-purple blooms look amazing when combined with climbing roses, or clambering over a porch or arch. Awarded the RHS Award of Garden Merit. Learn More
  4. John Huxtable at RHS Wisley Trials grounds
    £11.25
    The pretty white flowers are deeply textured and have a wonderful satin sheen. This popular clematis is perfect to brighten any dull spot in your garden. Awarded the RHS Award of Garden Merit. Learn More
  5. Clematis 'Ken Donson'
    £11.25
    Elegant flowers of mid-blue have bright yellow anthers in the centre and make the flower really stand out in the garden. A classic family favourite. Learn More
  6. Marie Boisselot
    £11.25
    The beautiful upward-facing blooms open creamy-white, turning to pure white as they mature and have golden stamens. A beautiful old cultivar from the early 1900’s. If hard pruned can be grown in a patio container. Awarded the RHS Award of Garden Merit. Learn More
  7. Mrs Cholmondeley
    £11.25
    The wonderful light mauvy-blue flowers have pale coffee-coloured anthers. A fabulous old cultivar which, if hard pruned, can be grown in a patio container. Cholmondeley is pronounced Chumley. Awarded the RHS Award of Garden Merit. Learn More
  8. Clematis 'Warszawska Nike'
    £11.25
    (syn. 'Warsaw Nike') The wonderful rich reddy-purple blooms mature to bluey-purple and have beautifully contrasting yellow stamens. Pronounced Var-sharv-ska Nee-ka. Awarded the RHS Award of Garden Merit. Learn More
  9. ARCTIC QUEEN™ 'Evitwo'
    £16.00

    These magnificent pure white blooms are fully double in early summer, whereas later in the summer they are semi-double. 

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  10. Clematis heracleifolia 'Praecox'
    £11.25
    (syn. x jouiniana 'Praecox'). The clusters of white star-shaped flowers have deep bluey-mauve tips. A clump-forming, vigorous, scrambler that also looks fabulous when trained against a wall. Awarded the RHS Award of Garden Merit. Learn More
  11. Clematis tangutica GOLDEN TIARA® 'Kugotia'
    £12.50
    Attractive bright golden-yellow nodding lantern-shaped flowers have distinctive contrasting reddish-purple stamens and leave silky seedheads. Requires free draining soil. Awarded the RHS Award of Garden Merit. Unlicensed Propagation Prohibited. Learn More
  12. Clematis viticella 'Abundance'
    £11.25
    The pretty semi-nodding pinky-red flowers have a deeply textured surface and crimped margins. Aptly named, the blooms are indeed produced in great abundance. Learn More
  13. Clematis viticella 'Blekitny Aniol' (BLUE ANGEL)
    £11.25

    The gorgeous pale, mauvy-blue flowers have a pretty satin sheen across their deeply textured surface. Its crimped and wavy margins taper to pointed tips. At dusk the flowers become almost luminous. Beautiful! Awarded the RHS Award of Garden Merit.

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  14. Clematis viticella 'Étoile Violette'
    £11.25
    The dark bluey-purple flowers have beautifully contrasting pale yellow stamens. An outstanding performer that adorns gardens across the world. Awarded the RHS Award of Garden Merit. Learn More
  15. Clematis viticella 'Kermesina'
    £11.25
    The silvery-pink buds open to glorious deep crimson flowers and have a white spot at the base of each tepal with contrasting dark brown stamens. Awarded the RHS Award of Garden Merit. Learn More
  16. Clematis viticella 'Madame Julia Correvon'
    £11.25

    The glorious vibrant red flowers have a textured surface and gently recurved, twisted tips. Their distinctive crown of contrasting yellow stamens adds to the attraction of this outstanding performer. Awarded the RHS Award of Garden Merit.

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  17. Clematis viticella 'Polish Spirit'
    £11.25
    The dark purple flowers have a slight reddish-purple bar which fades to bluey-purple as the blooms mature. An excellent choice to give later flowers in your garden. Awarded the RHS Award of Garden Merit. Learn More
  18. Clematis viticella 'Prince Charles'
    £11.25
    This gorgeous blue clematis opens light azure blue with a hint of pink along the central bar. As the blooms mature they become more mauve-blue, losing the pink tint. An outstanding performer! Awarded the RHS Award of Garden Merit. Learn More
  19. Clematis viticella 'Purpurea Plena Elegans'
    £12.50
    This lovely clematis has double dusky-magenta rosette shaped flowers and makes a wonderful sight when in full bloom. These elegant blooms are excellent as cut flowers. Awarded the RHS Award of Garden Merit. Learn More
  20. Clematis viticella 'Venosa Violacea'
    £12.50
    The eye-catching flowers have broad deep purple margins that merge towards a white bar which has rosy-purple veins running through it. A lovely crown of stamens further enhance the striking effect of these blooms. Awarded RHS Award of Garden Merit. Learn More

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