Clematis jackmanii 'Superba'
Clematis jackmanii 'Superba'
One of the most popular Clematis with large, purple flowers in summer. It grows best in a sunny spot with the roots in a cool spot and shaded from the heat of the sun. Grow it in the garden or a large pot. Equally effective if allowed to grow through larger shrubs for support. Group 3.
Contributed by @karolk
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Full sun
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Occasional watering
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Full Frost Hardy: 5F (-15°C)
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Moist and free draining
Common name
Clematis jackmanii 'Superba'
Latin name
Clematis jackmanii 'Superba'
type
Climber
family
Ranunculaceae
ph
7.0 - 8.5 Acid - Neutral
Plant & bloom calendar
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Best time to plant
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When the plant will bloom
full grown dimensions
Clematis jackmanii 'Superba'
One of the most popular Clematis with large, purple flowers in summer. It grows best in a sunny spot with the roots in a cool spot and shaded from the heat of the sun. Grow it in the garden or a large pot. Equally effective if allowed to grow through larger shrubs for support. Group 3.
Flowering Season
From Mid Summer TO Early Winter
Group 3 clematis includes the varieties that start their flowering after mid-summer and continue well into Autumn or even into early winter, if it's mild. So-called herbaceous clematis are also included in this group.
Planting Outdoors Spring
From Early Spring TO Late Spring
Put container grown plants into a sheltered and sunny site. The roots should be kept cool either by planting them on the North side or covering the roots with stones or similar.
Propagation by layering
From Early Spring TO Early Spring
Propagation can be done by layering, choose soft pliable stems that will reach the ground and allow the end of the shoot to be about a 1ft above the ground. On either side of a leaf joint, carefully slice the bark along it before securing it into the ground with wire hooks or similar each side of the slice. a hormone rooting powder can be used to help with the rooting. Tie the end of the shoot up carefully so that it grows vertically.
Propagation by cuttings
From Late Summer TO Mid Autumn
Semi hard wood cuttings are taken from the current years growth from late summer to mid autumn the bottom of the cuttings is hard and soft on the top. With a sharp knife take a cutting of about 14cms, remove lowest leaves, dip end into rooting hormone, and place round the edge of a pot filled with a suitable compost, water well, they must remain moist till rooted, place under glass but in semi shade.