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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. Daniel Deronda
    £11.25
    The lovely rich bluey-purple flowers have paler, almost mauve bars. The early flowers are occasionally semi-double. Awarded the RHS Award of Garden Merit. Learn More
  2. Clematis 'Fujimusume'
    £12.50
    The purest, clearest 'true blue' clematis there is, its glorious flowers have contrasting pale yellow stamens. A very compact, free-flowering climber, perfect for pots and an extremely good candidate for a north wall. Awarded the RHS Award of Garden Merit. Learn More
  3. Clematis 'Gillian Blades'
    £11.25
    The elegant white star-shaped blooms have the palest bluey-mauve very ruffled margins. Absolutely gorgeous! Awarded the RHS Award of Garden Merit. Learn More
  4. 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
  5. 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
  6. 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
  7. 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
  8. Clematis 'The President'
    £11.25
    This handsome old clematis has deep purply-blue star-shaped flowers with slightly paler bars and attractive beetroot-red stamens. Try growing this with 'The First Lady' as they make a charming colour combination! Learn More
  9. 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
  10. Clematis alpina 'Constance'
    £11.25
    The semi-double nodding, bell-shaped flowers are deep reddish-pink. Awarded the RHS Award of Garden Merit. Deciduous climber. Requires free draining soil. Learn More
  11. Clematis alpina 'Frances Rivis'
    £11.25
    The deep, rich blue nodding bell-shaped flowers have a white inner skirt. Awarded the RHS Award of Garden Merit. Deciduous climber. Requires free draining soil. Learn More
  12. Clematis alpina 'Frankie'
    £11.25
    Deep mauve-blue single nodding bell-shaped flowers with a creamy-white inner skirt. Awarded the RHS Award of Garden Merit. Requires free draining soil. Learn More
  13. Clematis alpina 'Helsingborg'
    £11.25
    The single nodding bell-shaped flowers are deep bluey-purple. Awarded the RHS Award of Garden Merit. Requires free draining soil. Learn More
  14. 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. 

    Learn More
  15. Clematis macropetela 'Lagoon'
    £11.25
    The deep, slightly greyish, blue semi-double nodding bell-shaped flowers have occasional white markings. Awarded the RHS Award of Garden Merit. Requires free draining soil. Learn More
  16. Clematis macropetela 'Markhams Pink'
    £11.25
    (syn. macropetala 'Markham's Pink'). Light to mid pink semi-double nodding, bell-shaped flowers. Awarded the RHS Award of Garden Merit. Requires free draining soil. Learn More
  17. Clematis macropetela 'Wesselton'
    £11.25
    (syn. macropetala 'Wesselton'). The light to mid blue semi-double nodding, bell-shaped flowers are larger than macropetala species. Awarded the RHS Award of Garden Merit. Requires free draining soil. Learn More
  18. Clematis montana 'Broughton Star'
    £11.25
    montana 'Broughton Star' has semi-double flowers of very deep plummy-pink, almost red, and a purply-bronze foliage as the plant matures - grow in a sunny position to enhance the colour of flowers and foliage. Awarded the RHS Award of Garden Merit. Learn More
  19. Clematis montana 'Elizabeth'
    £11.25
    The pale pink flowers have a pretty satin sheen and a lovely vanilla perfume. Over the years this has proven to be one of the most popular montana's. Grow in a sunny position to enhance the perfume. Learn More
  20. Clematis montana 'Freda'
    £11.25
    (syn. montana var. rubens 'Freda'). The deep cherry-pink blooms have paler pink bars and beautiful purply-bronze foliage. An enchanting, 'lady-like' montana. Grow in a sunny positon to enhance the colour of flowers and foliage. Awarded the RHS Award of Garden Merit. Learn More

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