Clematis Jackmanii Superba

Jackmanii Superba Clematis

Clematis ‘Jackmanii Superba’ is an improved selection of the classic Jackmanii type, prized for its larger, richer purple flowers and heavy, long-lasting bloom. Flowering freely from mid-summer into early fall, it delivers dependable color with excellent vigor and simple maintenance.


Plant Profile
Type: Deciduous flowering vine

Mature Size:



Width: 3–6 ft



Height: 10–12 ft



Bloom:



Large (5–7 in.) velvety deep purple flowers



Slightly fuller and darker than standard ‘Jackmanii’



Mid-summer through early fall



Foliage: Medium green; dense enough to support abundant blooms

Zones: 4a–9b
Light: Full sun to partial shade
Soil: Moist, well-drained soils; adaptable
Water: Moderate; drought tolerant once established

Pruning Group: Group 3 (blooms on new wood)


Features & Uses


Form: Vigorous, twining climber with a strong, upright habit



Excellent for trellises, fences, pergolas, arbors, and obelisks



Long bloom season with reliable flower coverage



Easier and more forgiving than many large-flowered clematis



Pairs well with roses, shrubs, and lighter-colored companions




Care Notes


Prune hard in late winter or early spring to 12–18 in. above ground



Provide sturdy support early in the season



Mulch roots to keep soil cool and evenly moist

Plant type

Vine

Height

10-12'

Width

3-5'

Hardiness zones

4–9

Sunlight

Full Sun, Partial Shade

Bloom time

Early Fall, Fall, Late Summer, Summer

Flower color

Purple

Leaf color

Green

Fall color

Green

Attracts

Bees butterflies birds

Soil

Moist well-drained

Landscape use

Trellis

Shape

Climbing

Fragrant

Yes

Drought tolerant

No