The Horticultural Society has some wonderful pocket-sized books on clematis, I thought I would share some of their info. I bought this 10 years ago, so the names are from what was available then. I'll post for each group. I hope your lovely vines benefit from the info. I learn something new each time I pick up the book and apply it to one of my pretties.

Pruning Group 2

Group composed entirely of early, large-flowered hybrids, including double flowers, whose second flush later in summer produces only single blooms.

Can be left unpruned, flowers are larger and foliage healthier on well-pruned plants.

Require light pruning in late winter or early spring to thin and create framework of well-spaced one or two year old stems.

Fat Leaf axil buds appear in early spring produce first batch of flowers. You can prolong the flowering season if you stagger the pruning by cutting back some shoots to healthy buds later than others. Less flowering on main flush, but flowering period will be longer overall.

Alternatively, Group 2 clematis can be grown with minimal pruning and cut back hard every three or four years. The first flush of flowers is lost after hard pruning, but second flush has larger, more plentiful blooms.

1 Cut any weak or damaged growth back to it's point of origin or down to ground.

2 Cut back remaining stems to a pair of healthy buds, leaving an evenly spaced framework of strong growth. The pruned stems will produce flowering shoots.

Clematis patens

Andromeda - Arctic Queen - Asao - Barbara Dibley - Barbara Jackman

- Beauty of Worcester - Bees' Jubilee - Belle Nantaise

- Belle of Woking - Blue Ravine - Bracebridge Star - Burma Star -

Chalcedony - Cardinal Wyszynski - Carnaby - Carnival Queen

- Charissima - Corona - Countess of Lovelace - Crimson King

Daniel Deronda - Dawn - Doctor Ruppel - Duchess of Edinburgh - Duchess of Sutherland

Edith - Edouard Desfosse - Elsa Spath - Empress of India

Etoile de Malicorne - Etoile de Paris - Fair Rosamond - Fair Queen - Fireworks - Fuji musume - Gernal Sikorski

Gillian Blades - Glynderek - Guernsey Cream - Haku okan - H.F. Young

Henryi - Horn of Plenty - Jackmanii Alba - Jackmanii Rubra

James Mason - Joan Picton - John Paul II (Jan Pawell II)

John Warren - Kathleen Dunford - Kathleen Wheeler - Keith Richardson

Kiri Te Kanawa - Lady Caroline Nevill - Lady Londesborough

Lady Northcliffe - Lasurstern - Liberation - Lincoln Star

Lord Nevill - Louise Rowe - Marcell Moser - Marie Boisselot - Masquerade (Maskarad) - Maureen - Miss Bateman

Miss Crawshay - Monte Cassino - Moonlight - Mrs. Bush - Mrs. Cholmondeley

Mrs. George Jackman - Mrs. Hope - Mrs. James Mason - Mrs. N. Thompson

Mrs. P. B. Truax, Mrs. Spencer Castle - Multi Blue - Myojo

Nelly Moser - Niobe - Peveril Pearl - Pink Fantasy - Pohjanael

Prins Hendrik - Proteus - Ramona - Richard Pennell - Rouge Cardinal

Royal Velvet - Royalty - Ruby Glow - Scartho Gem - Sealand Gem

Serenata - Silver Moon - Snow Queen - Sugar Candy - Sunset

Sylvia Denny - The President - The Vagabond - Twilight

Wada's Primrose - Warszawaska Nike - W.E. Gladstone - Will Goodwin

William Kennett - Victoria - Vino - Violet Elizabeth - Vyvyan Pennell