Campanula poscharskyana – Trailing Bellflower
Campanula poscharskyana, commonly known as the trailing bellflower, is a fast-growing, low-maintenance perennial that creates a charming cascade of starry blue-lavender flowers from late spring through summer. Ideal for softening edges, brightening walls, and filling gaps between paving stones, this hardy favourite is a must-have for every gardener seeking easy, long-lasting ground cover.
At a Glance
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Type: Herbaceous perennial (semi-evergreen)
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Common Name: Trailing Bellflower
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Flower Colour: Blue-lavender
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Height: 15cm
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Spread: 60cm
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Flowering Time: June to September
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Hardiness: Very hardy survives -20°C and below (RHS H7)
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Position: Full sun to partial shade
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Soil: Moist but well-drained; tolerates poor soils and light drought
Masses of Starry Blue Flowers
Campanula poscharskyana produces an abundance of small, five-pointed star-shaped flowers in a soft blue-lavender hue. These cheerful blooms appear from late spring through to early autumn, providing colour and interest for much of the growing season.
Ideal Ground Cover and Trailing Plant
With its low, spreading habit, this campanula is excellent for ground cover, cascading over walls, or trailing from pots and raised beds. It naturally finds its way through crevices in paving, rockeries, and dry stone walls, creating a soft, informal look that suits cottage gardens, alpine borders, and containers alike.
Low Maintenance and Reliable
Campanula poscharskyana is a low-maintenance and vigorous grower, thriving in a wide range of garden conditions. It spreads through creeping stems and self-seeds lightly, forming a carpet of green foliage topped with airy blooms. While semi-evergreen in milder parts of the UK, it will die back in colder areas and regrow strongly in spring.
Growing Tips
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Watering: Water during dry spells, particularly in containers or newly planted areas.
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Potted: Can grown in pots can be planted at any time of the year providing the ground is not frozen or waterlogged.
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Feeding: An annual mulch in spring helps maintain strong growth and flowering.
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Pruning: Light pruning after the initial flowering period in early summer to encourage a second bloom
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Dividing: Easily divided in spring or autumn to refresh older clumps or spread around the garden.
Fully Hardy Across the UK
With a hardiness rating of RHS H7, Campanula poscharskyana is fully hardy throughout the UK, enduring harsh winters without issue. It is a reliable choice for long-term planting in exposed or sheltered sites.
Perfect Companions
Pair this trailing bellflower with:
These combinations work well in gravel gardens, rockeries, and rustic edging schemes.
Why Choose Campanula poscharskyana?
For gardeners seeking a resilient, long-flowering, and low-maintenance perennial, Campanula poscharskyana delivers on every front. Whether softening hard landscaping or brightening tricky corners, it offers beauty and function with very little effort.
Add Campanula poscharskyana to your garden and enjoy months of cheerful blooms, fuss-free coverage, and reliable performance year after year.
Buying Perennials from Jacksons Nurseries
At Jacksons Nurseries we lightly trim back our perennials after flowering and trim them back at the end of the season to ensure that the plants remain neat and tidy whilst in the pot. The more tender the plant the less we cut back to help protect exposed stems from winter frost. Depending on the plant variety we will then prune back further in spring once the risk of the more severe frosts is over.
As a result, depending on the time of year you buy perennials, they may not look like images showing their ‘prime time’ in flower and looking at their best.
From late autumn onwards and dependent on variety, there may be very little visible above the soil except for a few cut back dormant leaves or stems. It is perfectly normal for dormant plants to look like this from autumn onwards, they will however burst back into life in spring.
Availability: Stock availability figures are provided as a guide only. There is a delay between orders being placed and the plants being gathered by our pulling team. During this time it may be possible for a member of the public to purchase these plants from our Garden Centre, while this is rare it is a possibility and we will notify you of any problems as soon as possible. This figure may also include plants that have not yet be flagged as unsaleable.
Pre-order: Pre-order times are given as a guide only and may vary dependent on the growing season. Orders containing Pre-ordered products will be shipped as a single order when all items become available. Large orders may be part shipped, please contact us on 01782 502741 or email sales@jacksonsnurseries.co.uk.
Perennials are described and classified differently by different gardeners but all would agree that they are plants that come into flower every year from early spring to late summer, the exact time dependent on variety and most die back to ground level in autumn and winter.
As for all plants, soil preparation is time well spent. Dig over the area to be planted ensuring that the ground is free draining. If not then you may wish to either consider planting in a different spot or raising the level of the planting area by adding additional topsoil, well rotted garden compost and/or well rotted manure. Add ‘Fish, Blood and Bone’ fertiliser or a high potash fertiliser to encourage good root growth and development.
It’s always a good idea to plant a few of the same plant together, we recommend planting in 3’s or 5’s to provide a bold effect but allowing them plenty of room to develop.
Always check eventual plant heights when planning borders to ensure that the taller plants are at the back (or at the centre of an island bed) followed by the medium and then smaller low growing plants.
Remember to deadhead perennials after flowering, trim back lightly in autumn as required to tidy the border and if necessary trim again in spring once the risk of heavy frost has passed.
If perennials get too big, start to flower less and less or if it seems to be dying off from the centre, consider dividing the plant but always check that the particular variety is happy to be divided and that you divide at the right time of year for the plant.
By using this simple guide and a little time, perennials can make an absolutely spectacular difference to your garden.
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£9.99 |