Common Name: Tangutica Group clematis
Cultivar: 'Bill MacKenzie'
Skill Level: Experienced
Exposure: Full sun, Partial shade
Soil type: Well-drained/light, Clay/heavy, Chalky/alkaline
Flowering period: June to November
This cultivar is one of the best of the orientalis types and a vigorous climber, growing to about 7m (22ft) in height with a 4m (12ft) spread. It has dark-green leaves and huge mustard-yellow, lantern-shaped flowers, which are followed by whiskery seed-heads. This plant may be grown in partial shade or full sun, but prefers rich, well-drained soil with the roots shaded. As with all the late-flowering clematis, pruning is easy. Simply cut back the stems to a pair of strong buds 15cm to 20cm (6in to 8in) above ground level before growth begins in early spring.
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