Avalanche Clematis Plants

Shade Partial Shade
Area Coastal Areas, Frost Pockets, Scotland & The North
Soil Good, Well Drained, Alkaline/Chalky, Poor/Dry
Colour White/Cream
Type Climber or Rambler, Evergreen, Pot Grown
Flowering Mar, Apr

Clematis x cartmanii Avalanche

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  Buy 3 or more potted plants and save

SIZES 1-2 3+
  Prices include VAT(where applicable)



Avalanche Clematis, Climbing Plants, 3L Pots

With its profusion of pure white flowers sporting striking yellow stamens, Clematis Avalanche is a beautiful addition to any spring border. This evergreen climber has delicately dissected foliage that creates interest along fences and walls, or even scrambling over the ground, after the flowers have faded. See our full range of climbing plants for more spring-flowering clematis.


  • Size: 3m x 2.5m
  • Colour: Pure white
  • Shape: Large, open flowers to 4cm
  • Scent: None
  • Flowering: March to April
  • Evergreen foliage
  • Type: Forsteri
  • Habit: Climber
  • Pruning group 1

Growing Avalanche

Ideal grown up a fence, wall or over an arbour, where its spectacular white flowers create real impact in the spring. It does not naturally attach itself to supports, so will need to be tied onto a trellis or wires. With its evergreen foliage providing year-round interest, it is also excellent trailing through deciduous trees and shrubs or as a ground cover plant. It is well suited for growing in a large container providing it is kept well watered and fed.

Planting Companions

Spring-flowering clematis pair well with climbers that flower later in the season such as honeysuckle and jasmine. Avalanche makes a great backdrop for a white garden, complementing daffodils like Thalia and Toto and other spring flowers such as Hyacinth White Pearl and Anemone White Splendour.

Did You Know?

Named after botanist Joe Cartman who raised it, C. x cartmanii was bred from the New Zealand clematis species: C. marmoraria and C. paniculata. This cultivar was bred at Blackthorn Nursery in Leighton Buzzard by Robin White, and originally registered under the code BLAaval.

  • Small Box

    Small boxes

    (Orders containing seedlings or rooted cuttings)


    including VAT per order

  • Small box

    (All barerooted plants under 1.2 metres in height. Please note: all trees are charged at the trees and hedging rate.)


    including VAT per order

  • Medium box

    (Any pots up to
    and incl. 7.5L)


    including VAT per order

  • Trees & Hedging

    (For all orders of trees of any size, and all bareroot plants 1.2 metres and over in height)


    including VAT per order

  • Pallets

    (For all orders of root balls,
    and large orders, a pallet
    price will be automatically
    applied at checkout)


    including VAT per order

*Delivery to mainland Britain & the Isle of Wight ONLY. Surcharges to the Isle of Wight and some areas of Scotland apply.

Bareroot planting is best done between November and April
Bareroot and potted - what's the difference?

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