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Prior to the introduction of 'Jackmanii', the disease clematis wilt was little known and not widespread. [6] However, because 'Jackmanii' was bred from C. lanuginosa (a species which is susceptible to the pathogen which causes the disease), and because 'Jackmanii' led to a series of similar hybrids and the popularisation of the genus, clematis wilt soon became a serious problem for the new ...
Over 70 species and cultivars of clematis currently (2016) [1] possess the Royal Horticultural Society's Award of Garden Merit, reflecting this plant's continued popularity in gardens in the United Kingdom. Clematis is a genus of woody based perennials, mostly climbers with a twining habit, though some are grown as groundcover or as herbaceous ...
Clematis is a genus of about 380 species [2] [3] within the buttercup family, Ranunculaceae. [4] Their garden hybrids and cultivars have been popular among gardeners, [5] beginning with Clematis 'Jackmanii', a garden staple since 1862; more cultivars are being produced constantly. They are mainly of Chinese and Japanese origin.
The following species in the flowering plant genus Clematis are accepted by Plants of the World Online. [1] Although the genus is currently most diverse in warm temperate regions and mountainous habitats, molecular evidence suggests that this is of recent origin, and earlier diversification occurred in more tropical climes.
George Junior and his father started to hybridise Clematis in July 1858. [1] Clematis 'Jackmanii' resulted from the first batch, and was awarded the Royal horticultural Society's First Class Certificate in August 1863. [1] With Thomas Moore, he co-authored The Clematis as a Garden Flower (1872; revised 1877). Jackman's papers are in Surrey ...
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The garden is roughly 1-acre (0.40 ha) in size and is home to the Rogerson Clematis Collection, a Nationally Accredited Plant Collection consisting of more than 2,000 individual clematis plants. It represents nearly 900 distinct species or cultivars from around the world, including rare and historic hybrids , American species, and recent ...
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