

💜 Deep purple flowers from July to September • 🌿 Very vigorous and free-flowering • 🌤️ Gentle sun / Partial shade • ❄️ Very hardy • 📏 H65 cm | Pot Ø15 cm
Clematis 'Jackmanii' is a climbing clematis native to Europe (United Kingdom), considered the first modern large-flowered hybrid clematis. Its large, star-shaped, deep purple flowers, 10 to 13 cm across, bloom en masse from July to September on the current year's shoots. A classic, timeless climber for urban balconies, terraces, and pergolas.
Very vigorous, very hardy and easy to prune, it's one of the most reliable outdoor climbers in the catalog — generous, healthy, and faithful year after year.
Which clematis should you choose?
The Verdeia clematis collection covers all blooming seasons and all colors. Here's how to place 'Jackmanii' among the catalog varieties:
- Clematis 'Jackmanii' (this plant) — large deep purple flowers, summer flowering from July to September. The most vigorous for covering a large area.
- Clematis 'Multi Blue' — large double bluish violet flowers, two bloom periods per year (May-June then August-September). The most spectacular and compact variety.
- Clematis 'The President' — large, single, deep violet flowers, continuous flowering from May to October. The classic, reliable choice with a very long season.
- Clematis 'Niobe' — large deep ruby red flowers, blooming from June to September. The choice for maximum red contrast on a pergola or white wall.
- Clematis 'Miss Bateman' — large white flowers with red stamens, elegant spring bloom. The choice for a very pure white combination early in the season.
- Clematis armandii — small fragrant white flowers from March, evergreen foliage all year round. The only evergreen clematis in the catalog.
Light & location
The 'Jackmanii' follows the golden rule of clematis: head in the sun, feet in the shade. Very adaptable, it tolerates both gentle full sun and partial shade — only scorching afternoon sun can limit its flowering.
- Exposure: gentle sun or partial shade — ideal facing east, west, or south without glare.
- Support: trellis, wire mesh, arch, or pergola — its tendril petioles cling by themselves.
- Soil: moist, fertile, well-drained — tolerates chalky soil.
- In pots: large deep container with surface mulch to keep roots cool.
To protect the base without ground cover plants, simply place a flat slate on the soil in front of the base — this is the simplest method to keep roots cool on a balcony or paved terrace.
Watering & care
'Jackmanii' blooms on this year's growth — winter pruning is therefore the most important step to ensure abundant flowering. A good start in spring and consistently moist soil are enough to trigger generous blooms from July to September. Be careful not to over-fertilize: excess fertilizer encourages foliage at the expense of flowers.
- Watering: keep soil moist — never let it dry out completely, especially in pots during summer.
- Pruning: cut all stems back to 15-30 cm from the ground in March-April, above strong buds.
- Fertilizer: light application of pellets for flowering plants in spring only — never in excess.
- Mulching: 5 to 8 cm at the base to keep the roots cool.
- Training: tie the young stems to the support as they grow.
The 'Jackmanii' blooms exclusively on the current year's shoots — a severe pruning in March is not a risk but a necessity to achieve dense and even flowering across the entire support.
Decor ideas & plant pairings
The deep purple of the 'Jackmanii' is one of the garden's most versatile colors — it pairs well with warm reds and pinks as well as cool whites and creams. For a lush, romantic terrace, it is the perfect base for a vertical composition.
- For a very passionate purple and red duo, the Crazy in Love 'Red' rose with its velvety red flowers is the ideal companion on the same trellis — the warm contrast between deep purple and rich red creates a very dramatic, romantic composition.
- For a very elegant purple and white combination, the white-flowered, evergreen Trachelospermum 'Star of Venice' covers the lower part of the wall all year round — the star jasmine's glossy green foliage and white summer flowers create a very clear contrast with the clematis's deep purple.
- To extend the season with a bonus fragrance, the Lonicera 'Belgica' with its red and cream flowers blooms from May to July before 'Jackmanii' takes over — the two climbers thus cover the support from May to September with two distinct moods.
- To show off the purple in a pot on a terrace, the Elho Greenville round white pot creates the clearest color contrast for this intense shade — the neutral white of the pot amplifies the brightness of the deep purple flowers.
Pair the 'Jackmanii' with a climbing rose that blooms in spring — the rose flowers from June to July before the clematis takes over, providing a continuous succession of colors on the same support.
Verdeia tips
- Prune hard every spring without hesitation: cutting all stems back to 15-30 cm from the ground in March triggers vigorous regrowth and much denser flowering than on an unpruned plant — this is the most important step for this variety, which blooms exclusively on new shoots.
- Spread the stems evenly over the entire support from the start: the petiole tendrils cling by themselves but without guidance the stems grow tall and leave the base of the support bare — a fan-shaped arrangement at planting ensures dense and even coverage from bottom to top.
- Limit fertilizer applications to a single spring dose: excess fertilizer encourages leaf growth at the expense of flowers — a single light application of slow-release granules in March is enough for abundant flowering all summer.
Technical features
- Botanical name: Clematis 'Jackmanii'
- Common name: Purple clematis
- Origin: Europe (United Kingdom)
- Delivery dimensions: H65 cm | Pot Ø15 cm
- Adult size: 3 to 4 m with support
- Exposure: gentle sun or partial shade
- Watering: regular, keep the soil moist
- Blooming: July to September
- Flower color: deep purple
- Foliage: medium green, deciduous
- Hardiness: very hardy (down to -15 °C)
- Care: easy
- Toxicity to pets: slightly toxic (irritant sap)
- Decorative style: Romantic / Classic / Flowering urban jungle
Each plant is unique: the photos show an example of its appearance. The intensity of the purple and the size of the flowers naturally vary depending on exposure and growing conditions.
Your plant, delivered with care
Every plant is hand-packed in a box specially designed for plants — secured, protected, ready to travel. It arrives in perfect condition, roots intact and foliage preserved, ready to take its place in your home.
Our Verdeia commitments
FAQ – Everything to know before adopting your Verdeia plant
How are my plants prepared before shipping?
All our plants are selected from our European partner nurseries. Before shipping, they are watered, cleaned, and protected with breathable, secure packaging. Each package is designed to ensure your plant arrives in perfect health, without any transport-related stress.
Will the plant look exactly like the photo?
The photos accurately represent the variety and the stated size. Since each plant is unique, slight differences in shape, foliage, or color may occur — and that’s part of their charm.
What are the delivery times and conditions?
Orders ship within 48 working hours, with tracked delivery in 2 to 5 working days via DPD. Shipping costs and the free-shipping threshold depend on your country — see our delivery page. You receive a tracking link as soon as your parcel leaves.
What should I do when my plant arrives?
Open your package as soon as you receive it and carefully remove the plant from its packaging. Let it acclimate for 24 hours in its new environment before watering. If it has been slightly stressed during transport, it will recover its shape after one or two days in the light.
What should I do if my plant arrives damaged?
Contact us within 48 hours with a photo of the issue. Our team will assess the situation and offer you the best solution: replacement, partial refund, or recovery advice.
Can I return a plant?
Since plants are living beings, standard returns are not possible. However, we guarantee good health upon delivery: if the plant arrives damaged, it will be replaced free of charge. For any other cases (order error, decorative pot, accessory), returns are possible within 14 days.

