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Clematis 'Etoile Violette' (Etoile Violette Clematis)
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Clematis 'Etoile Violette'

Etoile Violette Clematis

Hybrid of garden origin; viticella type, raised Morel, Lyon, France, 1885

At a Glance

TypeVine
FoliageDeciduous
Height10-15 feet (3-4.5 m)
Width4-6 feet (1.2-1.8 m)
Maturity3 years

Growing Zones

USDA Hardiness Zones

4 - 9
These zones indicate the coldest temperatures this plant can typically survive.
What's my zone? →
Frost Tolerancehardy

Overview

Clematis 'Etoile Violette' is a vigorous, deciduous, climbing vine in the Viticella Group reaching 10–15 feet (3–4.5 m) per season with a spread of 4–6 feet (1.2–1.8 m). The cultivar carries masses of nodding to outward-facing, four- to six-tepaled flowers 3–4 inches (8–10 cm) across in deep violet-purple with creamy-yellow anthers, from June through September on current-season growth. The tepals are slightly recurved and well-separated, producing a star-like form—'étoile' means 'star' in French. The deep violet-purple holds without fading through the flowering period, a pigmentation trait that sets the cultivar apart from lighter viticella hybrids. Leaves are compound and pinnate with 3–5 dark green leaflets. The plant climbs by twining leaf petioles. Growth rate is vigorous, covering 10–15 feet (3–4.5 m) from the base each season. Pruning Group 3. The C. viticella parentage confers strong resistance to clematis wilt (Calophoma clematidina). Raised by Francisque Morel in Lyon, France, in 1885—a widely grown viticella selection with documented 140-year cultivation history. All parts contain protoanemonin, an irritant that causes skin and mucous membrane contact dermatitis; sap contact during pruning should be rinsed off promptly and ingestion causes mouth burning and GI upset.

Native Range

Clematis 'Etoile Violette' is a viticella hybrid of garden origin. C. viticella is native to southern Europe (Italy, Spain, Turkey, the Balkans), occurring in sunny woodland edges and scrubland. Raised by Francisque Morel in Lyon, France, 1885.

Suggested Uses

Planted on large trellises, arbors, pergolas, fences, and scrambling through large trees at 4–6 foot (1.2–1.8 m) spacing. The vigorous annual growth covers large structures within a single season. Functions paired with climbing roses, where the clematis threads through the rose canes to combine purple stars with the rose color. The 15-foot reach suits large walls and pergola curtains where smaller clematis would look undersized. The deep purple contrasts with yellow, white, and pale pink climbing companions in a combined trellis planting. Grows in large containers of at least 10 gallons (38 L) with a sturdy support. The wilt resistance from the viticella parentage supports reliable performance in gardens where large-flowered hybrids have failed.

How to Identify

Separated from 'Betty Corning' by the larger, open, star-shaped (versus small, nodding, bell-shaped) flowers and the deeper purple (versus pale lavender) color. Separated from 'Madame Julia Correvon' by the deep violet-purple (versus wine-red) color. Separated from × durandii by the true climbing (versus non-climbing) habit and the star-shaped (versus flat, four-tepaled) flower form. Large, deep violet-purple, star-shaped flowers with creamy anthers on a vigorous climbing vine identify this cultivar.

Appearance

Size & Dimensions

Height10' - 15'
Width/Spread4' - 6'

Reaches mature size in approximately 3 years

Colors

Flower Colors

Foliage Colors

Fall Foliage Colors

Bloom Information

Bloom Period

~13 weeks
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Nodding to outward-facing, star-shaped, deep violet-purple flowers 3–4 inches (8–10 cm) across with creamy-yellow anthers open from June through September on current-season growth. Bloom duration is 12–14 weeks. Silky seed heads develop after flowering and persist into fall.

Detailed Descriptions

Flower Description

Deep violet-purple with creamy-yellow anthers

Foliage Description

Dark green, compound pinnate with 3-5 leaflets

Growing Conditions

Sun Requirements

Requires 4-10 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range6.5 - 7.5(Neutral)
357912
Soil Types
Drainagewell drained

Water & Climate

Water Needs

Medium

Frost Tolerance

hardy

Time to Maturity

2-3 years

Care & Maintenance

Care Guide

Plant with the crown 2–3 inches (5–8 cm) below soil surface in moist, well-drained soil. Full sun to partial shade; shading the root zone with mulch or low companions reduces summer stress. A sturdy trellis, fence, arbor, or mature tree supplies support for the vigorous growth that can reach 15 feet (4.5 m) in a single season. Consistent moisture through the growing season supports sustained bloom. The C. viticella parentage confers strong resistance to clematis wilt. Cutting all stems to 6–12 inches (15–30 cm) in late winter (Pruning Group 3) renews the flowering framework. All parts contain protoanemonin, an irritant; gloves during pruning reduce skin contact.

Pruning

Pruning Group 3: all stems are cut to 6–12 inches (15–30 cm) above ground in late February to March, just above a pair of strong buds. Flowers form on new wood. The vigorous annual regrowth covers large structures by mid-summer.

Pruning Schedule

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winterearly spring

Maintenance Level

low

Container Growing

✓ Suitable for container growing

Minimum container size: 10 gallons

⚠️ Toxicity Warning

Toxic to pets and humans