Species

Clematis x jackmaniiJackman Clematis

30 other cultivars

vine

Hudson River Clematis

Clematis x jackmanii 'Hudson River'

The Story

Plant Bio

This cultivar is known for its large, rich purple flowers and vigorous growth habit.

Hudson River is particularly noted for its ability to produce an abundance of blooms throughout the summer, often reblooming if deadheaded.

Uses & Benefits:

Clematis x jackmanii 'Hudson River' offers abundant large, fragrant purple flowers that enhance trellises and walls with vibrant color.

Provides vertical coverage, saving space in small gardens.

Supports pollinators like bees and butterflies while adding biodiversity.

SpeciesClematis x jackmaniiJackman Clematis

Essentials

At a Glance

Plant Type

Vine

Height

72 inches

Width

36 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Moderate

Lifespan

Perennial

Native To

Asia

Toxicity

Toxic to humans and pets if ingested; can cause skin irritation.

Planting

How to Grow

Tuck vigorous vines into a sturdy trellis or arbor to support growth.
Mist cuttings regularly to maintain humidity and promote root development.
Plant in well-drained soil enriched with organic matter for optimal growth.
Water consistently, especially during dry spells, to keep soil moist but not waterlogged.
Prune after flowering to encourage new growth and maintain shape.
Mulch around the base to conserve moisture and suppress weeds.

Pro Tip

Provide a sunny location with at least 6 hours of direct sunlight for best flowering results.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Prune after flowering to shape the plant
Support with a strong trellis or arbor
Feed with a balanced fertilizer in early spring

Don't

Avoid overwatering to prevent root rot ❌
Don’t fertilize late in the season to avoid weak new growth
Never neglect pruning after flowering
Avoid planting in dense shade

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vigorous climbing vine on trellisesElegant border plant with fragrant flowersVertical accent in garden walls

Companion Plants

Roses Lavender Hostas Daylilies Ferns

Multiply

Propagation Methods

Good to Know

Common Questions

Hudson River Clematis questions

What zones can Hudson River Clematis grow in?

Hudson River Clematis is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Hudson River Clematis deer resistant?

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

When does Hudson River Clematis bloom?

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

Does Hudson River Clematis need full sun?

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