Description
Quick Facts
- Common Name: Clematis ‘Samaritan Jo’
- Botanical Name: Clematis ‘Samaritan Jo’
- Plant Type: Deciduous climbing clematis
- Mature Height: 2–3m (with support)
- Mature Spread: 60cm–1m
- Flowering Period: Late spring to early summer, often with a repeat flush later in summer
- Flower Colour: Soft, luminous tones (often pale lavender/blue-mauve with a lighter centre)
- Hardiness: Hardy in UK & Ireland
- Soil Requirements: Moist, well-drained, fertile soil
- Aspect: Sun to part shade (best flowering with good light; keep roots cool)
- Maintenance: Low–moderate (light prune once a year + deadheading)
Description
Clematis ‘Samaritan Jo’ is a beautifully elegant clematis with a calm, luminous colour that sits effortlessly in almost any planting scheme. Its flowers are soft and refined—perfect for lifting a trellis, arch, pergola or fence without shouting—bringing that gentle, romantic clematis feel that makes a garden look instantly more in bloom.
It’s also a lovely one for weaving through roses and shrubs, letting the flowers float above other planting. With steady moisture and a little feeding, it will often reward you with a second flush later in the season too—so you get the first big moment, and then a quieter encore.
As ever with clematis: head in the sun, feet in the shade. Keep the roots cool and moist, give it something to climb, and it will settle in happily.
Caragh Garden Notebook
Planting:
Plant in spring or autumn. Choose a spot in sun or part shade with a support in place (trellis, wires, obelisk). Dig a generous hole and enrich with compost. Plant the clematis 5–8cm deeper than it sits in the pot to encourage strong shoots from the base. Water well and mulch to keep roots cool.
Plant in spring or autumn. Choose a spot in sun or part shade with a support in place (trellis, wires, obelisk). Dig a generous hole and enrich with compost. Plant the clematis 5–8cm deeper than it sits in the pot to encourage strong shoots from the base. Water well and mulch to keep roots cool.
Soil Preparation:
Clematis love fertile, moisture-retentive but free-draining soil. Improve heavy soil with compost and grit; improve light soil with plenty of organic matter. Mulch annually to conserve moisture and protect the root zone.
Clematis love fertile, moisture-retentive but free-draining soil. Improve heavy soil with compost and grit; improve light soil with plenty of organic matter. Mulch annually to conserve moisture and protect the root zone.
Watering & Feeding:
Water regularly in the first year and during dry spells. Feed in spring with a balanced fertiliser, then again after the first flush to support repeat flowering. Clematis in pots will need more consistent watering and feeding than those in the ground.
Water regularly in the first year and during dry spells. Feed in spring with a balanced fertiliser, then again after the first flush to support repeat flowering. Clematis in pots will need more consistent watering and feeding than those in the ground.
Pruning
Late winter / early spring (Feb–March):
- Remove any dead, weak, or damaged stems.
- Then prune lightly, shortening remaining stems back to a pair of strong, healthy buds.
- Aim to leave the plant roughly 60–120cm tall (depending on how established it is and where you want flowers to start).
After the first flush (early summer):
- Deadhead and trim back flowered stems to the next strong pair of buds/leaves.
- This tidies the plant and often encourages a second flush later in summer.
If it’s young or bare at the base:
- In years 1–2, you can cut back to 30–60cm in spring to encourage branching low down (still not a hard “to the ground” prune).
- For older, leggy plants, renovate gradually by taking one or two older stems down to 30–60cm each spring.
Pests & Problems:
Watch for slugs/snails on young shoots. Planting slightly deeper and keeping soil evenly moist helps reduce the risk of clematis wilt. Good airflow helps keep foliage clean.
Watch for slugs/snails on young shoots. Planting slightly deeper and keeping soil evenly moist helps reduce the risk of clematis wilt. Good airflow helps keep foliage clean.
Design Notes:
Perfect for trellis panels, arches, pergolas, and scrambling through roses. Gorgeous with whites, soft pinks, lavender, and silvery foliage for a romantic look, or with deeper purples for contrast.
Perfect for trellis panels, arches, pergolas, and scrambling through roses. Gorgeous with whites, soft pinks, lavender, and silvery foliage for a romantic look, or with deeper purples for contrast.






