Clematis Evison 'Diana's Delight' has large, 4-6 inch wide, single, lavender flowers with yellow anthers on 6-8 foot vines.

Clematis Evison 'Diana's Delight' has large, 4-6 inch wide, single, lavender flowers with yellow anthers on 6-8 foot vines.

Clematis Evison Boulevard 'Edda' has large semi-double flowers of deep purple with red bars on 3-4 foot long vines.

Clematis Evison Boulevard 'Edda' has large semi-double flowers of deep purple with red bars on 3-4 foot long vines.

Clematis Evison ‘Elodi’ is extremely compact with stems to just 1-2 feet long and dusky pink flowers.

Clematis Evison 'Filigree' is a dwarf clematis with single and semi-double, lightly ruffled lavender flowers.

Clematis Evison 'Fleuri' is a short, repeat bloomer with large 5 inch wide single flowers of violet-purple.

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 Evison ‘Juliane’ is from the Boulevard series and grows to just 3-4 feet tall with pure white flowers with burgundy stamens.

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 ‘Ninon’ is from the compact Boulevard series and grows to just 4-5 feet tall with lovely pure white flowers with burgundy stamens.

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

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 ‘Pistachio’ is a prolific bloomer producing beautiful white flowers tinged with green from late spring through summer.

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.