Clematis 'Jackmanii'
late large flowered clematis (group 3)
Sumptuous, large, deep purple flowers with greenish centres from mid-summer to early autumn. This large-flowered clematis can be relied upon to produce a mass of velvety blooms with either 4, 5 or 6 petals from June to September. Ideal for growing in a large container, supported by trellis or garden canes, it copes well in a north-facing site.
How to care for Clematis Jackmanii:
To avoid dry conditions, and to ensure good soil contact around the rootball, we advise planting climbers at least 30cm (12in), and preferably 45-60cm (18-24in) away from the base of a wall or fence. An even larger distance should be maintained when planting climbers beside an existing tree or shrub.
Choose a spot with well-drained, fertile soil and ensure the location receives plenty of sunlight—at least 6 hours a day—for optimal flowering.
However, they prefer their roots to be cool and shaded, so plant low-growing plants or add a layer of mulch of well-rotted compost around the base, avoiding the immediate crown.
In early spring cut back the previous year's stems to a pair of strong buds about 15-20cm (6-8in) above ground-level and apply a slow-release balanced fertiliser.
Choose a spot with well-drained, fertile soil and ensure the location receives plenty of sunlight—at least 6 hours a day—for optimal flowering.
However, they prefer their roots to be cool and shaded, so plant low-growing plants or add a layer of mulch of well-rotted compost around the base, avoiding the immediate crown.
In early spring cut back the previous year's stems to a pair of strong buds about 15-20cm (6-8in) above ground-level and apply a slow-release balanced fertiliser.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
3m
Eventual spread:
1m
Position:
Full sun / light shade
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Fully hardy
-
This climber is deciduous so it will lose all its leaves in autumn, then fresh new foliage appears again each spring.
-
Humans: Skin irritant; Pets: Harmful if eaten
3 litre pot | 60cm cane
£20.95
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(shipped within 2-3 working days)
9cm pot | 30cm cane
£14.99
available to order from autumn
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2 + 1 FREE 9cm pots
£29.98
£9.99 each
available to order from autumn
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