vine

Jackmanii Superba Clematis

The Story

Plant Bio

Clematis are popular flowering vines, often called the 'queen of climbers,' known for their spectacular flowers in a vast array of shapes and colors. They climb by twisting their leaf stalks around a support.

'Zojapur' (marketed as JACKMANII SUPERBA) is an improved version of the classic 'Jackmanii', featuring large, velvety, deep purple flowers with reddish-purple bars. It is a vigorous and free-flowering variety that blooms on new wood.

Uses & Benefits:

JACKMANII SUPERBA offers a classic, elegant look with its large, velvety deep purple flowers that cover the vine in summer. It is perfect for adding vertical interest and a touch of formal grace to walls, fences, and obelisks.

As a vigorous Group 3 clematis, its pruning is very simple: a hard cut in late winter removes all the previous year's growth, making it easy to manage and ensuring a fresh, floriferous display each year.

The open-faced flowers provide easy access for pollinators like bees to gather pollen and nectar, supporting local insect populations during its long summer bloom period.

Essentials

At a Glance

Plant Type

Vine

Height

120 inches

Width

48 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Long-lived perennial vine

Native To

Hybrid

Toxicity

Toxic if ingested

Bloom period

Mid-summer – Early fall

In flower about 3 months of the year

Planting

How to Grow

Choose a location with full sun for the vine and shade for the roots.
Dig a hole 18 inches wide and deep, amending with compost.
Plant the clematis with the crown 3-5 inches below the soil surface.
Angle the root ball slightly towards the support structure.
Backfill the hole, water thoroughly, and mulch well.
Gently tie the young stems to the support to guide them.

Pro Tip

To prevent the base from becoming bare, underplant with a shallow-rooted perennial or groundcover to shade the roots.

Keep It Thriving

Care Guide

Do

Provide at least 6 hours of sun for best flowering.
Keep roots cool and moist with a 2-inch layer of mulch.
Water deeply during dry spells, especially in the first few years.
Prune hard annually as it is a Group 3 clematis.

Don't

Don't plant it in a windy, exposed location.
Avoid letting the root zone dry out completely.
Don't damage the fragile stems when weeding or cultivating.
Don't forget to provide a sturdy trellis or support from day one.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Mulch
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Classic vine for a mailbox or lamppostRichly colored accent on a light-colored fenceElegant climber for an obelisk in a formal border

Companion Plants

Rosa 'New Dawn'Hydrangea arborescens 'Annabelle'Spiraea japonica 'Goldmound'Geranium 'Rozanne'Heuchera 'Palace Purple'

Multiply

Propagation Methods

Good to Know

Common Questions

Jackmanii Superba Clematis questions

What zones can Jackmanii Superba Clematis grow in?

Jackmanii Superba Clematis is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Jackmanii Superba Clematis deer resistant?

Yes — Jackmanii Superba Clematis is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Jackmanii Superba Clematis bloom?

Jackmanii Superba Clematis typically blooms in mid-summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Jackmanii Superba Clematis need full sun?

Jackmanii Superba Clematis does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.