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Award Winners

Here are all the clematis we stock which have achieved theRHS AGM Logo Royal Horticultural Society's 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.

Other Awards.
We also now list those plants that have received awards in the horticulture industry more widely including from Top Gardening magazines.
Sometimes the name of publications or their specific endorsement, can't be mentioned for legal reasons and we apologies for this inconvenience.

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  1. 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.
    Received a Top Award in a Popular Garden Magazine Dec 2020.

    Learn More
  2. 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
  3. 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.
    Received a Top Award in a Popular Garden Magazine Dec 2020.

    Learn More
  4. 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.
    'Recommended' by a Popular Garden Magazine Dec 2020.

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  5. Clematis viticella 'Prince Charles'
    £14.50
    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
  6. 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.
    'Recommended' by a Popular Garden Magazine Dec 2020.

    Learn More
  7. 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.
    'Recommended' by a Popular Garden Magazine Dec 2020.

    Learn More
  8. Clematis viticella 'Walenburg'
    £13.50
    The semi-nodding deep purply-red flowers have a creamy-white centre and contrasting purply-red anthers. When in full bloom this clematis makes a breathtaking sight. Absolutely lovely! Awarded the RHS Award of Garden Merit. Learn More
  9. AVANT-GARDE™ 'Evipo033'
    £15.00

    These unusual deep pinky-red flowers have a pale pink pom-pom like centre and strongly recurved tips to the tepals.
    'Recommended' by a Popular Garden Magazine Dec 2020.

    Learn More
  10. SEA BREEZE 'Zo09063'
    £13.50

    A huge abundance of flowers that have a fresh pale violet-blue colour become almost white at the centre of the tepal and surround a dark 'eye' of anthers in the middle.
    Received a Top Award in a Popular Garden Magazine Dec 2020.

    Learn More
  11. Clematis 'Joe'
    £13.50
    The white 'male' flowers have pale yellow stamens. An evergreen with prostrate growing habit or can be trained vertically if desired, requiring free draining soil. Learn More
  12. Durandii
    £12.50
    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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