Clematis 'Jackmanii'
"Jackman's clematis"
Orders placed before 1 March 2025
You can expect your order in February/March 2025
Orders placed 1 March - 15 April 2025
You can expect your order in March/April 2025
Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days
UK orders over £50
Free shipping
UK orders under £50
£4.99
Northern Ireland orders under £50
£5.99
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Description
Clematis 'Jackmanii', or Jackman's clematis, is a true classic, gracing gardens with its deep, velvety violet-purple blooms since the 19th century. Its large, open flowers, reaching up to 12cm across, create a stunning contrast against their backdrop of lush green foliage. The delicate greenish-cream anthers add a refined touch, making each bloom a masterpiece in itself. Flowering generously from midsummer to early autumn, Clematis 'Jackmanii' is perfect for adding a long-lasting splash of colour to trellises, fences, and pergolas. Whether climbing up an old tree or weaving through a rose bush, it never fails to impress.
Despite its regal appearance, Clematis 'Jackmanii' is delightfully low-maintenance. A simple hard prune in late winter or early spring ensures vigorous new growth and a fresh display of flowers each year. This robust climber thrives in sun or partial shade, happily scrambling up to 3 metres with ease. With its rich history and timeless appeal, Clematis 'Jackmanii' remains one of the most popular clematis varieties worldwide. Also known as Clematis × jackmanii, it proudly holds the prestigious RHS Award of Garden Merit—a well-deserved recognition for its reliability, beauty, and outstanding performance.
Clematis 'Jackmanii' is supplied as a pip with a well-developed root system, ready to thrive in your garden. You can see an example of a pip in the last image.
Key features
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Climbing habit
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Comes back every year
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Loved by pollinators
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Thrives well in full sun
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In peat-free compost
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Low maintenance
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RHS Award (AGM)
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Fully hardy
Specs & details
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Botanical name
Clematis 'Jackmanii' (LL)
syn. Clematis × jackmanii -
Flower colour
Purple, violet
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Plant size
1
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Established height
1-3m
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Established spread
50-70cm
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Plant spacing
3 plants per m2
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Leaf colour
Green
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Habit
Climbing
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Life cycle
Perennial
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Hardiness
Fully hardy
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Years to establish
2-3 years
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Sunlight
Full sun
Dappled shade
Partial shade -
Position
Sheltered
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Suitable for
Large containers
Cottage gardens
Low maintenance gardens -
Soil acidity
Any
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Soil moisture
Damp
Free draining -
Soil type
Loam
Clay
Loam-based compost -
Growing skill
Easy to grow
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Scented
No
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Pollinator-friendly
Yes
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Mouse resistant
No
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Rabbit resistant
Yes
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Deer resistant
Yes
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Toxicity
No report
Plant calendar
| Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
- Planting
- Flowering
Useful information
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Soak your Clematis 'Jackmanii' roots in water for 3-6 hours prior to planting.
Plant your "Jackman's clematis" bare roots into temporary pots with a multipurpose compost in spring and grow-on in a sheltered spot outdoors.
Choose a pot which comfortably fits the bare roots. Some have a noticeable crown which should be just below the soil surface with any top growth exposed.
Plant out into borders or permanent containers in late spring or early summer once in full growth. Choose a position in sun or shade depending on the variety.
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Orders placed before 1 March 2025
You can expect your order in Feb/March 2025Orders placed 1 March - 15 April 2025
You can expect your order in April 2025Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days
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