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Calophoma clematidina is a fungal plant pathogen and the most common cause of the disease clematis wilt affecting large-flowered varieties of Clematis. Symptoms of infection include leaf spotting, wilting of leaves, stems or the whole plant and internal blackening of the stem, often at soil level.
There is one that blooms early in the season, some are evergreen and the rest are deciduous. One of the other flowering clematis is a mid-season bloomer. The third sister is a late-flowering bloomer.
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 ...
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.
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These woody-stemmed plants can be pruned in fall or early spring to within a couple of feet of the ground, and will vine up fence, trellis, arbors (or other plants) to heights of 10 to 30 feet. Clematis ternifolia can also be allowed to sprawl along the ground as a dense ground cover. Blooms on new growth. No serious insect or disease problems.
Clematis aristata is a popular hardy garden plant. It prefers a semi-shaded or shaded position and cool deep soils and will withstand heavy pruning. [5] It is a vigorous climber and may become a problem by smothering other plants. Propagation can be carried out from fresh seed and from cuttings of semi-hardened stems. [5]
Clematis virginiana (also known as devil's darning needles, devil's hair, love vine, traveller's joy, virgin's bower, Virginia virgin's bower, wild hops, and ...