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This award winning variety boasts large, deep-pink flowerheads with cream anthers and will burst into colour throughout the summer. Clematis 'Ernest Markham' is a vigorous hardy perennial which is ideal for growing up a trellis or sunny wall and is simple to take care of as it can be cut back to near enough ground level every year. For maximum blooms, plant in full sun. Height: 4m (12'). Spread: 1.5m (5) Pruning group: 3.