Clematis viticella 'Alba Luxurians' has four undulating tepals variably tipped with green.

Clematis x cartmanii 'Early Sensation' produces masses of white flowers with golden yellow centres on non-clinging plants.

Clematis x fargesioides has masses of fragrant, silver dollar-sized, white flowers throughout the summer.

Clematis x triternata 'Rubromarginata' has highly scented, small 1-2 (3-5cm) white magenta edged flowers.

Clematis 'Bees Jubilee' has large, soft, white to mauve pink flowers with bright carmine bars.

Clematis 'Duchess of Edinburgh' offers beautiful double white blooms with greenish centres

Clematis Evison 'Corinne' has ruffled white flowers with subtle violet pink stripes and pink and white anthers.

Clematis Evison 'Corinne' has ruffled white flowers with subtle violet pink stripes and pink and white anthers.

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

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 'Kitty' is a powerhouse bloomer said to put on a flower show for up to six months a year!

Clematis Evison 'Kitty' is a powerhouse bloomer said to put on a flower show for up to six months a year!

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

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.

Clematis Evison 'The Countess of Wessex' has large, ruffled, white flowers with pink stripes and deep red stamens on plants just 4 feet tall.

Clematis Evison ‘Tsukiko’ has stunning ivory white flowers and dark purple stamens. It is extremely free flowering.

Clematis 'Vienetta' is an incredible double cultivar centred with tiny white and purple petals atop large white petals flushed green.

Clematis 'Fair Rosamund' is one of the few large flowering hybrids with a fragrance. Bluish white with pink bar and purple stamens.

Clematis 'Fuyu-no-tabi' is a Japanese cultivar with large, single, white flowers with red stamens. Re-bloomer.

Clematis 'Gillian Blades' is a stunning white cultivar with ruffled edges set against the central yellow stamens.

Clematis 'Guernsey Cream' has elegant creamy white flowers. One of the earliest to bloom of the large-flowered cultivars.

Clematis 'Halina Noll' has very large white flowers tinged with pink tips around dark stamens.

Clematis 'Henryi' is a historic cultivar that is more than 150 years old that produces masses of pure white flowers.