Unpack bare roots or rhizomes on arrival and plant them within a week. Until then, keep them somewhere cool and ensure the roots remain slightly moist, never wet.
Out of season
Deluxe
Clematis
'Jackmanii Alba'
white Jackman's clematis
Clematis 'Jackmanii Alba' brings a touch of timeless elegance to the garden, offering a delightful display of pristine white blooms throughout the season. In spring, this variety puts on an extra-special show, producing (semi-)double flowers on the previous year’s growth, adding an extra layer of texture and charm. As summer arrives, Clematis 'Jackmanii Alba' continues to impress, unfurling large, single blooms that shine against a backdrop of rich green foliage. Whether trained up a trellis, draped over an arch, or allowed to weave through shrubs, this white Jackman's clematis provides a luminous, airy presence that brightens up any outdoor space.
True to the spirit of the classic Jackmanii group, Clematis 'Jackmanii Alba' is both vigorous and floriferous, rewarding minimal effort with a generous display. Thriving in sun or partial shade, it pairs beautifully with darker-flowered varieties or climbing roses for a striking contrast. This hardy climber flourishes in well-drained soil, and with the right pruning—light after spring flowering and harder in late winter—it will return year after year with even more enthusiasm. With its graceful habit and long-lasting blooms, Clematis 'Jackmanii Alba' proves that white flowers are anything but ordinary.
Clematis 'Jackmanii Alba' 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.
Quantity
Plant profile
Plant calendar
Remove the packaging straight away, check the compost and water thoroughly if dry. Check the plant’s hardiness before placing it outdoors. Plant into a border or permanent container within a month, choosing the position recommended for the variety. Keep the top of the root ball level with the surrounding soil, firm gently and water well.
Soak the roots in water for three to six hours immediately before planting. Keep any crown, buds or emerging shoots above the water where possible.
Pot most bare roots into 15–20cm pots filled with peat-free multipurpose compost. Large or depth-sensitive roots, including peonies, are often best planted directly into borders.
Arrange the roots naturally without bending them. Cover the roots completely, positioning the crown and buds at the depth recommended for that particular perennial.
Keep pots in a sheltered outdoor position and water whenever the compost begins to dry. Grow on until roots hold the compost together when lifted from the pot.
Plant into a suitable border or permanent container once well rooted. Add a label and water regularly throughout the first growing season while the perennial establishes.
- Botanical name
-
Clematis 'Jackmanii Alba' (EL)
syn. Clematis × jackmanii 'Alba' - Flower colour
- White
- Established height
- 1-3m
- Established spread
- 50-70cm
- Growing skill
- Easy to grow
- Habit
- Climbing
- Hardiness
- Fully hardy
- Leaf colour
- Green
- Mouse resistant
- No
- Plant size
- 1
- Plant spacing
- 3 plants per m2
- Pollinator friendly
- Yes
- Position
- Sheltered
- Rabbit resistant
- Yes
- Scented
- No
- Soil acidity
- Any
- Soil moisture
-
Damp
Free draining - Soil type
-
Loam
Clay
Loam-based compost - Suitable for
-
Large containers
Cottage gardens
Low maintenance gardens - Sunlight
-
Full sun
Dappled shade
Partial shade - Toxicity
- No report
- Years to establish
- 2-3 years
Pollinator-friendly
Thrives in full sun
Perennial
Fully hardy
Packed peat-free
Low maintenance
Climbing habit
-20%
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Expert care from
choice to delivery
Our horticulturalists prepare every bulb and plant with the utmost care. From selection to packing, each one receives expert attention before beginning its journey to your garden.
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From cultivation to packaging and delivery, we are always looking for ways to lessen our environmental impact.
Growing together
Our care team of horticultural experts is on hand to support you choose and garden with confidence.
World of wonders
A collection of world-renowned flower bulbs and perennials of exceptional beauty and character.
Chosen to thrive
Every bulb and plant is sourced, selected and prepared with an expert eye for their quality and garden performance.
