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The President is one of the large flowered hybrid clematis. A strong growing plant of medium size it produces sumptuous, rich violet, purple, blue flowers with pink stamens at the centre, twice a year, first in late spring early summer, and then again in late summer and early autumn. Can get to as much as 2.5m by 1.5m, but can be kept in check by regular pruning in late winter, early spring. Newly planted this variety should be cut back hard to a pair of strong buds approximately one foot from the ground after it's first full year, and thereafter it needs to kept to a woody framework consistent with the size of the space, just cutting back untidy and excess growth to a good pair of buds on each stem.