Clematis 'Jackmanii'

Clematis ‘Jackmanii’ is a vigorous, large-flowered climbing vine renowned for its deep purple, velvety blooms that brighten fences, trellises, and arbors from mid-summer to fall.
Plant Type
Perennial
Light Requirement
Full sun (top growth); roots prefer shade or mulch to stay cool
Max Height
12 feet
Max Spread
6 feet

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This classic clematis variety produces abundant, rich purple, star-shaped flowers with a velvety texture and prominent yellow stamens. Blooming profusely from midsummer through early fall, ‘Jackmanii’ brings dramatic vertical color and texture to gardens. It thrives in full sun with cool, shaded roots and well-drained soil. The plant’s twining stems can quickly cover trellises, walls, or pergolas, providing lush, flowering coverage. Easy to grow and prune, Clematis ‘Jackmanii’ is a favorite among gardeners seeking bold, showy vines.

This section shows how the plant will fit into your yard and into your life.

Seasonal Interest:

Mid-summer to fall flowering; attractive foliage year-round

Landscape Uses:

Trellises, fences, arbors, pergolas, vertical accents

Allergy Considerations:

Low pollen allergen

Kid/Pet Safety:

Generally non-toxic; safe for children and pets

Mess Factor:

Low; minimal leaf or flower drop

Maintenance Level:

Moderate; prune in late winter or early spring to encourage growth and blooms

This section covers practical care information for homeowners.

Water Needs:

Moderate; keep soil evenly moist, especially during establishment

Soil Tolerance:

Well-drained, fertile soils with good organic matter

Drought Tolerance:

Moderate; benefits from regular watering in dry spells

Deer Resistance:

Moderate; may be browsed occasionally

Pest/Disease Resistance:

Moderate; watch for clematis wilt and powdery mildew

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