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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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19 Item(s)

  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. Clematis 'Gipsy Queen'
    £11.25
    This lovely old clematis has dark bluey-purple blooms with a hint of reddish-purple along the bar when first open. A wonderful companion for your climbing roses. Awarded the RHS Award of Garden Merit. Learn More
  3. Clematis 'Huldine'
    £11.25
    These elegant satin-white blooms have an almost transparent, pearly appearance, due to their attractive mauve reverse being an apparent feature. An excellent candidate to add interest to your garden in autumn. Awarded the RHS Award of Garden Merit. Learn More
  4. 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
  5. Clematis 'Lasurstern'
    £11.25
    The rich mid blue star-shaped flowers have wavy margins and contrasting yellow stamens. Awarded the RHS Award of Garden Merit. 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 'Mrs George Jackman'
    £11.25
    The classic pure white blooms have a satin sheen and crown of coffee-coloured stamens. The early blooms are occasionally semi-double. Awarded the RHS Award of Garden Merit. Learn More
  9. 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
  10. ALABAST™ 'Poulala'
    £11.25
    The newly opened flowers are pale primrose yellow with a deeper bar and satin sheen, they mature to soft creamy-white. Ideal for growing in the shade. Unlicensed Propagation Prohibited. Learn More
  11. 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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  12. Clematis montana 'Grandiflora'
    £11.25
    The eye-catching satin white flowers have rounded tips, lightly ruffled margins and contrasting bright yellow anthers. A really rampant grower! Awarded the RHS Award of Garden Merit. Deciduous climber. 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 '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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  16. 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
  17. 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
  18. 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
  19. Durandii
    £11.25
    The gorgeous rich indigo blue flowers are semi-nodding and have contrasting pale yellow anthers. Semi-herbaceous, non-clinging, semi-climber or scrambler. Awarded the RHS Award of Garden Merit. Learn More

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