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.

Clematis 'John Warren' offers stunning large white flowers with central bands and edges of carmine pink around red stamens.

Clematis 'Louise Rowe' offers lovely single and double flowers in softest mauve and pink.

Clematis 'Miss Bateman' is an heirloom with gorgeous creamy white flowers with pale green central bands.

Clematis 'Mme Le Coultre' has been a classic for more than 100 years with its pure white flowers and yellow stamens.

Clematis 'Moonlight' produces creamy white flowers embossed with yellow stamens and a palest yellow midrib.

Clematis 'Pernille' is a cold-hardy climber with single white flowers, purple margins and veining and yellow stamens.

Clematis 'Snow Queen' is an introduction from New Zealand with lovely white flowers.

Clematis 'The First Lady' offers very large flowers in silvery blue to white with light greenish bands and pretty purple stamens.

Clematis 'Toki' is an elegant Japanese cultivar with pure white 5-7 inch wide flowers and yellow stamens.

Clematis Vancouver 'Fragant Star' has a vanilla fragrance that is quite unique for a large, white flowered clematis.

Clematis Vancouver 'Morning Mist' has large soft pink flowers with a frilled pink edge and striking yellow stamens.

Clematis 'Veronica's Choice' is a stunning confection with fully double flowers of white, French gray, and palest blue.

Clethra alnifolia 'Hummingbird' is a compact shrub with white bottlebrush flowers that are fragrant and nectar-rich.