Clematis Evison ‘Zara’ produces lovely light blue flowers with central yellow stamens from spring to fall on stems 5-6 feet high.

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

Clematis 'Fireflame' has large double flowers of magenta-red with yellow centres on old wood, single on new. Re-bloomer.

Clematis 'Fuchsia Flash' has large single flowers of reddish-pink with cream centres and maroon tipped anthers. Rebloomer. Hardy to zone 3.

Clematis 'Fuji Musume' is a beautiful Japanese cultivar with 6-8 inch wide mid blue flowers

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

Clematis 'General Sikorski' produces huge 8-10 inch wide flowers in shades of mid-blue to purple-blue.

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 'Gypsy Queen' has stunning velvety plum purple flowers with pronounced raised mid ribs.

Clematis 'H.F. Young' is one of the most popular blue-flowering cultivars with mid blue tepals with lighter central bands.

Clematis 'Hagley Hybrid' offers delicate shell pink flowers with white and purple stamens. It is hardy to zone 3.

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

Clematis 'Hania' is a striking Polish cultivar with magenta-red, multi-tepaled flowers with lighter pink edges.

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

Clematis 'Horn of Plenty' has huge flowers 8-10 inches wide in shades of rosy purple with reddish purple veins.

'Jackmanii' has deep purple four to six inch wide flowers in profusion. It is the classic purple in the Clematis world.

Clematis 'Joan Picton' is a free flowering variety with glowing lilac-purple blooms with broad light lavender to white central bands.

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

Clematis 'Julka' has large, bold purple flowers with a bright red bar on each tepal.

Clematis 'Kardinal Wyszynski' is a striking Polish cultivar with glowing carmine red flowers with darker central bands.

Clematis 'Kathleen Dunford' has blue jeans purple, semi-double flowers with stamens all the same length.

Clematis 'Kilian Donahue' opens fuchsia pink with a magenta-red bar and slowly fades to pinkish lavender with a darker pink bar.

Clematis 'Kimi'idera' has medium-large, star-shaped single flowers of lavender with white bars and red anthers.

Clematis 'Kiri Te Kanawa' has early 6-9" (12-15cm) flowers that are deep blue with cream stamens and slightly smaller and paler later.