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Buy Campanula ‘Sarastro’ (Bellflower) online from Jacksons Nurseries.

Campanula Sarastro

Bellflower

£6.99
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At a Glance

Campanula 'Sarastro'

Campanula 'Sarastro' is a bold and distinctive herbaceous perennial known for its unusually large, deep violet-blue bell-shaped flowers that bloom over a long summer period. Compact, clump-forming, and easy to grow, it adds rich colour and vertical interest to borders, cottage gardens, and mixed perennial plantings. A favourite with both gardeners and pollinators alike.

 

At a Glance

  • Type: Herbaceous perennial

  • Common Name: Bellflower

  • Flower Colour: Deep violet-blue

  • Height: 70cm (3ft)

  • Spread: 50cm (1.6ft)

  • Flowering Time: June to September

  • Hardiness: Very hardy survives -20°C and below (RHS H7)

  • Position: Full sun or partial shade

  • Soil: Moist but well-drained; fertile and humus-rich preferred

 

Dramatic Bell-Shaped Blooms

What sets Campanula 'Sarastro' apart is its large, drooping bell-shaped flowers, borne on upright stems in a vivid violet-blue. Each flower can reach up to 70cm in length, creating a bold statement in mid-summer borders. These eye-catching blooms add depth and contrast to softer pastel planting schemes.

 

Long-Lasting Colour Through Summer

'Sarastro' begins flowering in early summer, continuing through July and into September, especially when spent blooms are removed. Its long flowering period and rich tones make it an excellent choice for adding a strong visual anchor in a perennial planting scheme.

 

Loved by Pollinators

The nectar-rich flowers are a magnet for bees and other pollinators, making 'Sarastro' a valuable addition to wildlife gardens or any space where you’d like to support beneficial insects.

 

Neat, Clump-Forming Growth

This Campanula has a neat, bushy habit, forming a mound of mid-green foliage with upright flowering stems. Unlike some other bellflowers, 'Sarastro' is non-invasive and well-behaved in garden borders, making it easier to manage over time.

 

Easy to Grow and Low Maintenance

Campanula 'Sarastro' is a robust and easy-to-grow perennial, suitable for most gardeners. It prefers fertile, well-drained soils and can tolerate both sun and light shade. Once established, it is fairly drought-tolerant and requires minimal attention beyond seasonal tidying.

 

Growing Tips

  • Watering: Water regularly until well established; tolerate short dry periods once mature.

  • PottedCan grown in pots can be planted at any time of the year providing the ground is not frozen or waterlogged.

  • Feeding: Mulch with compost or apply a balanced fertiliser in spring for best flowering.

  • Deadheading: Remove spent flowers to encourage continued blooming.

  • Pruning: After flowering, cut stems down to the base to tidy the plant and encourage fresh growth.

  • Dividing: Divide every 3–4 years in early spring or autumn to rejuvenate plants and increase stock.

 

Fully Hardy in the UK

Campanula 'Sarastro' is rated RHS H7, making it fully hardy across all regions of the UK, including colder northern areas. It will die back in winter and return reliably each spring with renewed vigour.

 

Ideal Planting Partners

'Sarastro' works beautifully alongside:

These combinations create varied textures and complementary colours for long-season borders.

 

Why Choose Campanula 'Sarastro'?

If you're looking for a compact, colourful perennial that combines easy care with standout blooms, Campanula 'Sarastro' is a brilliant choice. Its striking deep violet flowers, neat habit, and garden versatility make it a valuable and rewarding plant for gardens of all styles.

Introduce Campanula 'Sarastro' to your garden for a burst of dramatic colour, pollinator appeal, and reliable performance from year to 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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  Size Availability Price  
Buy Campanula ‘Sarastro’ (Bellflower) online from Jacksons Nurseries. 2 Litre pot
In stock
£9.99
Buy Campanula ‘Sarastro’ (Bellflower) online from Jacksons Nurseries. 9cm pot
In stock
£6.99

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