Clematis ‘Jackmanii’

Jackman's Clematis

Clematis ‘Jackmanii’ is a free-flowering, medium-sized climber with velvety violet blooms opening from midsummer into early autumn. Its four broad sepals and contrasting anthers give each flower depth and texture. Awarded the RHS Award of Garden Merit, it combines reliability with beauty. Many Irish gardeners plant it as a classic choice for trellises and arches.

Flowering Months

Jan J

Feb F

Mar M

Apr A

May M

Jun J

Jul J

Aug A

Sep S

Oct O

Nov N

Dec D

Size

Max Height

2.5 m — 4.0 m

Max Spread

0.5 m — 1.0 m

Growth Habit

Uses support to grow upwards with twining or gripping stems.

Planting Position

Sunlight i Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.

Full Sun Part Shade

Aspect i Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.

North South East West

Exposure i Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.

Exposed / Sheltered

Hardiness i Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.

(−20 to −15 °C) Very cold-hardy

Ideal Soil Conditions

Soil Type i Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.

Chalk Clay Loam Sand

Soil Moisture i Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.

Moist but permeable / Free draining

Soil pH i Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.

Acid Alkaline Neutral

Plant Uses & Merits

Uses

Against Wall

Merits

RHS | Award Of Garden Merit

Clematis ‘Jackmanii’

Jackman's Clematis

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Clematis ‘Jackmanii’

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