Clematis North Star

North Star clematis flower

Clematis 'North Star' is a sturdy variety with violet-blue flowers complimented by a reddish-purple stripe/shading making them particularly attractive from June to September.

This variety was raised by Frank Watkinson at Askern near Selby.

How to grow

This non-evergreen climber can be grown against a trellis, garden fence, wall, arches, pillars, pergolas, clambering over tree stumps and through large shrubs or planted in a container trained up bamboo canes or an obelisk.

North Star characteristics

Growing

  • Gardening skill: Beginner
  • Flowering duration: Long
  • Height after 10 years: 2.5m-3.5m / 8ft-12ft
  • Growth habit: Climbing
  • Spread after 10 years: Less than 1m / 3ft

Climate

  • Cold hardiness (RHS): H6 (to -20C)
  • Cold hardiness (USDA): Zone 6 (-23C)

Identification

  • Country of origin: United Kingdom
  • Flower colour: Blue
  • Flowering month: June July August September
  • Flower form: Single flower (5-8 petals)
  • Leaf colour: Green
  • Leaf colour - young: Green
  • Leaf colour - autumn: Yellow
  • Annual cycle: Deciduous