Clematis x jackmanii 'Barbara Harrington'

Species

Clematis x jackmaniiJackman Clematis

30 other cultivars

vine

Barbara Harrington clematis

Clematis x jackmanii 'Barbara Harrington'

The Story

Plant Bio

Clematis x jackmanii 'Barbara Harrington' features large, vibrant purple flowers that bloom profusely throughout the summer.

This cultivar is noted for its exceptional flower size and color vibrancy, making it a standout choice for trellises and arbors.

Uses & Benefits:

Vibrant, large flowers add elegance to garden structures and fences.

Provides vertical coverage, reducing wall and fence exposure.

Supports pollinators like bees and butterflies with nectar

SpeciesClematis x jackmaniiJackman Clematis

Essentials

At a Glance

Plant Type

Vine

Height

96 inches

Width

30 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Hybrid

Toxicity

Toxic if ingested, skin irritant

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Tuck cuttings in moist soil and keep in bright, indirect light for 6 weeks.
Plant bare roots in early spring in well-drained soil, about 2 inches deep.
Mist young plants regularly to maintain soil moisture and promote rooting.
Train the vine onto a trellis or support structure as it grows.
Mulch around the base to retain moisture and regulate soil temperature.
Fertilize with a balanced fertilizer every 4-6 weeks during the growing season.

Pro Tip

Provide sturdy support early to encourage vertical growth and abundant blooms.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil evenly moist 🌱
Prune after flowering to promote new growth
Feed with a fertilizer high in phosphorus for vibrant blooms
Train and tie in vines to support structures

Don't

Avoid overwatering to prevent root rot ❌
Don't neglect pruning, which encourages more flowers
Avoid planting in overly shaded spots
Don't forget to remove dead or weak stems

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Climbing vine on trellisesFlowering privacy screensDecorative garden arch

Companion Plants

Roses Lavender Daylilies Hostas Salvia

Multiply

Propagation Methods

Good to Know

Common Questions

Barbara Harrington clematis questions

What zones can Barbara Harrington clematis grow in?

Barbara Harrington 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 Barbara Harrington clematis deer resistant?

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

When does Barbara Harrington clematis bloom?

Barbara Harrington clematis typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Barbara Harrington clematis need full sun?

Barbara Harrington clematis does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.