Clematis x jackmanii 'Grefve Erik Ruuth'

Species

Clematis x jackmaniiJackman Clematis

30 other cultivars

vine

Greve Erik Ruuth Clematis

Clematis x jackmanii 'Grefve Erik Ruuth'

The Story

Plant Bio

A vigorous climbing vine from the Viticella group, producing large, pure white flowers with contrasting dark anthers.

This cultivar is known for its exceptional flowering and long bloom period compared to other Clematis varieties.

Uses & Benefits:

A stunning climbing vine that provides vibrant purple flowers, perfect for enhancing vertical spaces and garden aesthetics.

Provides natural shade and privacy when trained on structures.

Supports pollinators like bees and butterflies, enriching local biodiversity.

SpeciesClematis x jackmaniiJackman Clematis

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

Regular watering, moist soil

Humidity

Moderate to high

Lifespan

Perennial

Native To

Europe, Asia (parentage)

Toxicity

Toxic if ingested, can cause skin irritation

Planting

How to Grow

Tuck sturdy trellis or support structures into the soil.
Plant clematis roots 3-4 inches deep and water thoroughly.
Mulch around the base to retain moisture and regulate soil temperature.
Prune after flowering to encourage vigorous growth.
Water regularly, especially during dry spells, for best blooms.
Fertilize with a balanced fertilizer in early spring and mid-summer.

Pro Tip

Position in full sun with cool, moist roots for optimal flowering.

Keep It Thriving

Care Guide

Do

Provide support for climbing growth 🌱
Water consistently to keep soil moist
Prune annually to maintain shape and encourage blooms
Apply balanced fertilizer in spring and summer

Don't

Avoid letting roots dry out ❌
Don't prune in late fall or winter
Avoid over-fertilizing which can reduce flowering
Don't plant too deeply, ensure roots are at proper depth

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Climbing vine on trellises and arborsDecorative fence or wall coveringVivid floral display in garden boundaries

Companion Plants

Hostas Ferns Lavender Daylilies

Multiply

Propagation Methods

Good to Know

Common Questions

Greve Erik Ruuth Clematis questions

What zones can Greve Erik Ruuth Clematis grow in?

Greve Erik Ruuth 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 Greve Erik Ruuth Clematis deer resistant?

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

When does Greve Erik Ruuth Clematis bloom?

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

Does Greve Erik Ruuth Clematis need full sun?

Greve Erik Ruuth Clematis does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.