The National Collections at Sheffield Botanical Gardens

Sheffield Botanical Gardens is the home of the National Collections of Weigela, Diervilla and Sarcococca as designated by Plant Heritage (NCCPG).

Collaborative research with The University of Sheffield

A research project between Sheffield Botanic Gardens, FOBS and the Department of Animal and Plant Sciences at The University of Sheffield has been put on hold for the time being. Plant material already collected for the study will be stored at the Department. We are very hopeful that the project will continue at some stage so that by DNA sequencing of sections of the genome of the Weigela & Diervilla species in the National Collections at the Gardens, it will be possible to identify similarities and differences within and between species, the degree to which Weigela & Diervilla are genetically related and to draw up a relationship tree.

Sarcococca (Buxaceae)

Link to separate website www.sarcococca.org.uk

Weigela (Caprifoliaceae)

See Weigela below

Diervilla (Caprifoliaceae)

The genus was named after a Dr. Dierville, a French surgeon who travelled in North America in the early 18th century. This is a small genus of 3 species of hardy, deciduous suckering shrubs native to North America. Previously grouped with plants now known as Weigela, the two genera are easily distinguished from each other. In Diervilla the flowers are two-lipped, invariably yellow, and borne on the current season's growth, whereas in Weigela the corolla is regular, (not two-lipped) and the flowers are borne on short lateral twigs on the growth of the previous year.
CULTIVATION
Diervillas will grow in full sun or part shade in fertile soil. They should be pruned back in spring before growth commences, when they send up a dense mass of shoots that will blossom during summer.

Diervilla lonicara - R. Eggelstone
Diervilla lonicera
命. Egglestone
Diervilla lonicara 'Dilon' - R. Eggelstone
Diervilla lonicera 'Dilon'
命. Egglestone
Diervilla rivularis - R. Egglestone
Diervilla rivularis
命. Egglestone
Diervilla rivularis 'Troja Black' - R. Egglestone
Diervilla rivularis 'Troja Black'
命. Egglestone
Diervilla sessilifolia - R. Egglestone
Diervilla sessilifolia
命. Egglestone
Diervilla sessilifolia 'Butterfly' - R. Egglestone
Diervilla sessilifolia 'Butterfly'
命. Egglestone
Diervilla sessilifolia 'Cool Splash' - R. Egglestone
Diervilla sessilifolia 'Cool Splash'
命. Egglestone
Diervilla sessilifolia 'Dise' - R. Egglestone
Diervilla sessilifolia 'Dise'
命. Egglestone
Diervilla x splendens - R. Egglestone
Diervilla x splendens
命. Egglestone

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Weigela (Caprifoliaceae)

The genus is named after C.E. von Weigel (1748-1831). a German botany Professor. It contains 10 species which come from Japan, China and Manchuria. In 1929 Bailey separated the plants which are now known as Weigela from the Diervilla group. the genus Weigela was named after the German botanist Christian von Weigel. There are over 200 cultivar names recorded but probably less are in cultivation. Weigela florida was the first species to be introduced - by Robert Fortune in 1845 - and was widely cultivated in the mid 19th century. Other species followed. Since 1867 hybridisers have been working to produce good cultivars to meet the needs of gardeners. The 19th century cultivars were raised largely in France and Holland and are large shrubs with long arching growths. In contrast most of the modern weigelas are cultivars from Canada, and have coloured foliage and dwarf habit. They are all hardy, long flowered, easy going, trouble-free ornamental shrubs which make good garden plants.
CULTIVATION
Weigelas prefer full sun or light shade; the golden leaved forms require some shade to prevent leaf scorch. They all need a damp fertile soil, which does not dry out in summer, and feeding in spring. Pruning involves removal of the flowered stems after flowering, with a third of the old stems being removed completely to ground level.

Originally planted in what is now the 'Prairie Garden' during the 1970s, the collection had to be totally re-propagated and renewed in the first years of the 21st century due to an infection by honey fungus (Armillaria mellea). This work was undertaken by John Stirling, a FOBS volunteer and National Collections Manager for the Gardens. The collection was then replanted at the southern end of the 'East Lawn' in 2004/2005 and new cultivars have been added since.

Thumbnail images edited from original photographs - 命. Egglestone, 2013 (except where otherwise noted)

Weigela species

Weigela coraeensis - R Egglestone
W. coraeensis
Weigela decora - R Egglestone
W. decora
Weigela hortensis - R Egglestone
W. hortensis
Weigela floribunda - R Egglestone
W. floribunda
Weigela florida - R Egglestone
W. florida
Weigela japonica - R Egglestone
W. japonica
Weigela maximowiczii - R Egglestone
W. maximowiczii
Weigela middendorffiana - R Egglestone
W. middendorffiana
Weigela praecox - R Egglestone
W. praecox
Weigela subsessilis - R Egglestone
W. subsessilis

Weigela Hybrid Groups

The guide lines for a simplified classification of the cultivars into 8 Groups - based on size of plant, leaf colour and colour of flower - was proposed by M.H.A. Hoffman in 2008. (In: Proceedings Vth IS on Taxonomy of Cultivated Plants. Eds: N. Groendijk-Wilders et al. Acta Hort. 799. ISHS 2008)

Key

Group 1 - Purpurea

Dwarf or semi-dwarf (0.5 - 1.5 m) plants with reddish-brown or reddish-purple leaves. Flowers usually purple or red.

Weigela 'Black and White' - R Egglestone
W. 'Black and White'

Weigela 'Bokrashine' - R Egglestone
W. 'Bokrashine'
=Naomi Campbell
Weigela 'Coffee Black' - R Egglestone
W. 'Coffee Black'

Weigela 'Dark Horse' - R Egglestone
W. 'Dark Horse'

Weigela 'Davnik' - R Egglestone
W. 'Davnik'

Weigela 'Ebony & Ivory' - J. Stirling
W. 'Ebony & Ivory'
咐. Stirling, 2015
Weigela 'Alexandra' - R Egglestone
W. florida 'Alexandra'
=Wine & Roses
Weigela 'Anika' - R Egglestone
W. florida 'Anika'

Weigela 'Elvera' - R Egglestone
W. florida 'Elvera'
=Midnight Wine
Weigela 'Foliis Purpureis' - R Egglestone
W. florida
'Foliis Purpureis'
Weigela 'Grethe' - R Egglestone
W. florida 'Grethe'

Weigela 'Nana Purpurea' - R Egglestone
W. florida
'Nana Purpurea'
Weigela 'Samabor' - R Egglestone
W. florida 'Samabor'

Weigela 'Samba' - R Egglestone
W. florida 'Samba'

Weigela 'Tango' - R Egglestone
W. florida 'Tango'

Weigela 'Verweig 3' - R Egglestone
W. florida 'Verweig 3'
=Minor Black
Weigela 'Ruby King' - R Egglestone
W. 'Ruby King'

Weigela 'Victoria' - R Egglestone
W. 'Victoria'

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Group 2 - Dwarf

Usually less than 1 m tall & wide, leaves green, variegated or yellow. Flowers of various colours.

Weigela 'Courtanin' - R Egglestone
W. 'Courtanin'
=Nain Rouge
Weigela 'Cappuccino' - R Egglestone
W. florida 'Verweig 2'
=Cappuccino
Weigela 'Monet' - R Egglestone
W. florida 'Verweig'
=Monet
Weigela 'Minuet' - R Egglestone
W. 'Minuet'

Weigela 'Plangen' - R Egglestone
W. 'Plangen'=
Pink Poppet
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Group 3 - Variegata

Plants usually taller and wider than 1 m with variegated leaves. Flowers of various colours.

Weigela 'Courtatom' - R Egglestone
W. 'Courtatom'

Weigela 'Emerald Edge' - R Egglestone
W. 'Emerald Edge'

Weigela 'Albo Variegata' - R Egglestone
W. florida
'Albo Variegata'
Weigela 'Brigela' - R Egglestone
W. florida
'Brigela'
Weigela 'Caricature' - R Egglestone
W. florida
'Caricature'
Weigela 'Korea' - R Egglestone
W. florida
'Korea'
Weigela 'Sunny Princess' - R Egglestone
W. florida
'Sunny Princess'
Weigela 'Suzanne' - R Egglestone
W. florida
'Suzanne'
Weigela 'Florida Variegata' - R Egglestone
W. 'Florida Variegata'

Weigela 'Gold Rush' - R Egglestone
W. 'Gold Rush'

Weigela 'Hulsdonk' - R Egglestone
W. 'Hulsdonk'

Weigela 'Kosteriana Variegata' - R Egglestone
W. 'Kosteriana
Variegata'
Weigela 'Milk & Honey' - R Egglestone
W. 'Milk & Honey'

Weigela 'Mrs England' - R Egglestone
W. 'Mrs England'

Weigela 'Nana Variegata' - R Egglestone
W. 'Nana Variegata'

Weigela 'Praecox Variegata' - R Egglestone
W. 'Praecox
Variegata'
Weigela 'Siebold Variegata' - R Egglestone
W. 'Siebold Variegata'

Weigela 'Stelzneri' - R Egglestone
W. 'Stelzneri'

Weigela 'Wessex Gold' - R Egglestone
W. 'Wessex Gold'

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Group 4 - Aurea

Plants usually taller and wider than 1 m with greenish-yellow leaves. Flowers of various colours.

Weigela 'Rubies n' Gold' - R Egglestone
W. 'Conanu'
=Rubies n' Gold
Weigela 'Jean's Gold' - R Egglestone
W. 'Jean's Gold'

Weigela 'Looymansii Aurea' - R Egglestone
W. 'Looymansii Aurea'

Weigela 'Olympiade' - R Egglestone
W. 'Olympiade'
=Briant Rubidor
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Group 5 - White-flowered

Plants usually taller and wider than 1 m with green leaves. Flowers white or almost white.

Weigela 'Bristol Snowflake' - R Egglestone
W. 'Bristol Snowflake'

Weigela 'Candida' - R Egglestone
W. 'Candida'

Weigela coraeensis f. alba - R Egglestone
W. coraeensis f. alba

Weigela florida f. alba - R Egglestone
W. florida f. alba

Weigela 'H廨oine' - R Egglestone
W. 'H廨oine'

Weigela 'Nivea' - R Egglestone
W.hortensis 'Nivea'

Weigela 'Mont Blanc' - R Egglestone
W. 'Mont Blanc'

Weigela 'Perle' - R Egglestone
W. 'Perle'

Weigela praecox 'Avalanche' - R Egglestone
W. praecox 'Avalanche'

Weigela 'White Knight' - R Egglestone
W. 'White Knight'

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Group 6 - Red-flowered

Plants usually taller and wider than 1 m with green leaves. Flowers red or purplish-red.

Weigela 'Bokrarob' - R Egglestone
W. 'Bokrarob'

Weigela 'Bristol Ruby' - R Egglestone
W. 'Bristol Ruby'

Weigela 'Courtared' - R Egglestone
W. 'Courtared'
=Lucifer
Weigela 'Courtavif' - R Egglestone
W. 'Courtavif'
=Rubivif
Weigela 'Eva Rathke' - R Egglestone
W. 'Eva Rathke'

Weigela 'Eva Supreme' - R Egglestone
W. 'Eva Supreme'

Weigela 'Evita' - R Egglestone
W. 'Evita'

Weigela 'Newport Red' - R Egglestone
W. 'Newport Red'
(Syn. W. 'Vanicek')
Weigela 'Red Prince' - R Egglestone
W. 'Red Prince'

Weigela 'Saturn' - R Egglestone
W. 'Saturn'

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Group 7 - Pink-flowered

Plants usually taller and wider than 1 m with green leaves. Flowers of pink or purple.

Weigela 'Abel Carri鋨e' - R Egglestone
W. 'Abel Carri鋨e'

Weigela 'Boskoop Glory' - R Egglestone
W. 'Boskoop Glory'

Weigela 'Boskoop Glory' - R Egglestone
W. 'Bouquet Rose'

Weigela 'Conqu皻e' - R Egglestone
W. 'Conqu皻e'

Weigela 'Dart's Overflow' - R Egglestone
W. 'Dart's Overflow'

Weigela 'F嶪rie' - R Egglestone
W. 'F嶪rie'

Weigela 'Fleur de Mai' - R Egglestone
W. 'Fleur de Mai'

Weigela 'Flor嶧l' - R Egglestone
W. 'Flor嶧l'

Weigela 'Aldenham Glow' - R Egglestone
W. floribunda 'Aldenham Glow'

Weigela 'Dropmore Pink' - R Egglestone
W. florida 'Dropmore Pink'

Weigela 'Pink Princess' - R Egglestone
W. florida 'Pink Princess'

Weigela 'Groenewegenii' - R Egglestone
W. 'Groenewegenii'

Weigela 'Gustave Malet' - R Egglestone
W. 'Gustave Malet'
(Photo 咐. Stirling)
Weigela 'Lavallei' - R Egglestone
W. 'Lavallei'

Weigela 'Mme le Couturier' - R Egglestone
W. 'Mme le Couturier'

Weigela 'Othello' - R Egglestone
W. 'Othello'

Weigela 'Polka' - R Egglestone
W. 'Polka'

Weigela 'President Duchartre' - R Egglestone
W. 'President Duchartre'

Weigela 'Rosabella' - R Egglestone
W. 'Rosabella'

Weigela 'Rosea' - R Egglestone
W. 'Rosea'

Weigela 'Rumba' - R Egglestone
W. 'Rumba'

Weigela 'Styriaca' - R Egglestone
W. 'Styriaca'

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Group 8 - Bicolour-flowered

Plants usually taller and wider than 1 m with green leaves. Flowers of two or more colours on the same plant at the same time.

Weigela 'Cam幨廩n' - R Egglestone
W. 'Cam幨廩n'

Weigela 'Courtalor' - R Egglestone
W. 'Courtalor'
=Carnaval
Weigela 'Bicolor' - R Egglestone
W. florida 'Bicolor'

Weigela 'Dart's Colourdream' - R Egglestone
W. japonica 'Intercol'
=Dart's Colourdream
Weigela 'Versicolor' - R Egglestone
W. 'Versicolor'

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Group 9 - Yellow-flowered

Plants usually taller and wider than 1 m with green leaves. Yellow Flowers.

Weigela 'Mango' - J Stirling
W. middendorffiana 'Mango'

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