Clematis Evison 'Giselle' is a stunning cultivar with narrow, pointed petals in shades of light to mid pink.

Clematis Evison 'Giselle' is a stunning cultivar with narrow, pointed petals in shades of light to mid pink.

Clematis ‘Guiding Promise’ has rich grape purple flowers with hints of raspberry at the edges around purple anthers.

Clematis Evison 'Hyde Hall' has large 5-7 inch single flowers of white with a pale green bar.

Clematis Evison 'Ines' is a short, repeat bloomer with large 3-5 inch wide single lavender flowers.

Clematis Evison 'Issey' is a compact cultivars with waves of magenta to red flowers from early summer to late autumn.

Clematis 'Josephine' has big double pink flowers with with lilac pink petals centred with a magenta midrib.

Clematis 'Josephine' has big double pink flowers with with lilac pink petals centred with a magenta midrib.

Clematis Evison 'Lindsay' is a 6-8 foot tall, repeat-blooming vine with large 6-7 inch wide blue-purple flowers.

Clematis Evison 'Mirabelle' offers delicate tones of pink, rose pink, and dusky rose with highlights of white.

Clematis Evison 'Neva' produces smaller 4-5 inch wide flowers in great numbers from early summer through fall.

Clematis Evison 'Nubia' has large, deep red blooms with red stripes and dark red anthers.

Clematis Evison 'Olympia' has single to semi-double lavender blue flowers with lemon yellow centres.

Clematis Evison 'Olympia' has single to semi-double lavender blue flowers with lemon yellow centres.

Clematis Evison 'Parisienne' has large 6 inch wide, single, mauve flowers with purple anthers on 3-4 foot tall vines.

Clematis Evison 'Parisienne' has large 6 inch wide, single, mauve flowers with purple anthers on 3-4 foot tall vines.

Clematis Evison 'Paulie' has large 4-6 inch wide single flowers of lavender-blue with red bars on 4-6 foot tall vines.

Clematis Evison 'Picardy' produces large, single flowers of red and purple with deep red bars on vines just 3-4 feet tall.

Clematis Evison 'Poseidon' is a short, repeat bloomer with 4-5 inch wide single flowers of pink and magenta.

Clematis Evison 'Reflections' is very floriferous with semi-double flowers in palest lilac-blue maturing to near white.

Clematis Evison 'Rosemoor' offers rich fuchsia-red flowers with lavender-red central bands.

Clematis Evison 'Rosemoor' offers rich fuchsia-red flowers with lavender-red central bands.

Clematis Evison 'Samaritan Jo' has pointed petals in silvery pink with purple edging and dark purple and yellow centres.

Clematis Evison 'Samaritan Jo' has pointed petals in silvery pink with purple edging and dark purple and yellow centres.