Campanula poscharskyana 'Stella' (Serbian Bellflower) — Bushy, Clump forming, Matforming, Columnar upright

Overview

Campanula poscharskyana 'Stella' is a plant with a bushy, clump forming, matforming, columnar upright habit in the genus Campanula, part of the Campanulaceae family, with deciduous foliage. Campanula poscharskyana 'Stella' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H4, H5, H6, H7. Suggested uses include cottage and informal garden, wildlife gardens, flower borders and beds and underplanting of roses and shrubs.

About

Campanula poscharskyana 'Stella' is a mat-forming perennial that produces low clumps with short upright stems bearing star-shaped lavender-blue flowers. The foliage is deciduous and the plant spreads by branching shoots to form a ground cover. Flowering occurs from June to September.

About the genus

Campanula is the type genus of the Campanulaceae family of flowering plants. Campanula are commonly known as bellflowers and take both their common and scientific names from the bell-shaped flowers—campanula is Latin for "little bell".

Wikipedia contributors, "Campanula", CC BY-SA 4.0 — Campanula

In the garden

Campanula poscharskyana 'Stella' originates from mountainous parts of the Balkans and is grown for its low, spreading habit and generous display of star-like blooms. It forms mats and clumps with short, columnar flowering stems, carrying flowers above the leaves through the summer months. Site plants where they receive full sun or partial shade in a moist but well-drained soil; they tolerate chalk, loam or sand and a wide pH range (acid to alkaline). The plant suits all aspects and will tolerate both exposed and sheltered positions. Hardiness is rated H4–H7 (average to fully hardy), so it will overwinter outdoors across most of the UK; give a little winter protection in the coldest, most exposed sites if you are in an H4 area. Use 'Stella' in cottage and informal gardens, wildlife borders, flower beds and as an underplanting for roses and shrubs where a low, flowering carpet is wanted. It roots readily at nodes and commonly trails into wall and paving crevices, which makes it useful for softening stonework but means it can also spread into cracks if left unchecked.

Growing conditions

Best soil and position for Campanula

Sunlight: Full sun, Partial shade
Soil type: Chalk, Loam, Sand
Soil pH: Acid, Alkaline, Neutral
Soil moisture: Moist but well-drained
Aspect: North-facing, East-facing, South-facing, West-facing
Exposure: Exposed, Sheltered
UK hardiness: H4, H5, H6, H7

Plant details

Campanula poscharskyana 'Stella' size, habit and characteristics

Habit: Bushy, Clump forming, Matforming, Columnar upright
Foliage: Deciduous
Suggested uses: Cottage and informal garden, Wildlife gardens, Flower borders and beds, Underplanting of roses and shrubs

Care notes

Pruning and caring for Campanula poscharskyana 'Stella'

Propagation: Seed, Division, Basal cuttings, Stem-tip cuttings
Pest resistance: Slugs and snails
Disease resistance: Powdery mildew, Rust

Frequently asked questions

Where is the best place to plant Campanula poscharskyana 'Stella'?

Campanula poscharskyana 'Stella' prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Campanula poscharskyana 'Stella' need?

Campanula poscharskyana 'Stella' is adaptable and grows happily in most soil types, including chalk, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Campanula poscharskyana 'Stella' hardy in the UK?

Campanula poscharskyana 'Stella' has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.

How do I propagate Campanula poscharskyana 'Stella'?

Seed, Division, Basal cuttings, Stem-tip cuttings.

More in the Campanula genus

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