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Value-for-money

Campanula portenschlagiana

Campanula portenschlagiana
Wall Bellflower

4,3/5
45 reviews
7 reviews
5 reviews
5 reviews
3 reviews

Very pleased, they create a beautiful blue tapestry, looking forward to them being available again...next spring!

Agnès , 19/11/2024

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This plant carries a 12 months recovery warranty

More information

Graden Merit
A vigorous creeping perennial, really easy to grow in all well-drained soils, in sun or light shade. The cushion of leaves is covered from spring until early summer, then again in autumn, with numerous star-shaped flowers of a very bright blue-violet. This wonderful, floriferous, ground cover deserves to be prominently featured in rock gardens.
Flower size
2 cm
Height at maturity
20 cm
Spread at maturity
30 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Dry soil, Moist soil
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Best planting time March, October
Recommended planting time February to May, September to November
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Flowering time June to July, September
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Description

Campanula portenschlagiana also known as the wall bellflower or Campanula muralis, is a creeping perennial plant that forms beautiful long-lasting blankets of bright blue-violet flowers in spring and early summer, and sometimes again in September. Renowned for its robustness and adaptability, it is a classic in gardens. This wonderful, floriferous ground cover deserves a prominent place in rockeries, above a wall or in a planter from which it will happily cascade.

 

Campanula porscharskyana belongs to the campanula family. It is a small, very hardy perennial plant, native to the mountains of the Balkans. In the wild, it can be found in rock crevices and high mountain scree slopes. The plant forms a cushion 20 cm (8in) high, with a minimum spread of 60 cm (24in). It spreads through stems that root upon contact with the ground, allowing it to occupy an increasingly larger surface area. The flowering begins in late spring and continues throughout the summer, more prominently in cool climates. It is common for it to pause in summer, when it is dry and hot, followed by a resurgence in autumn. The star-shaped flowers measure 2 to 2.5 cm (1in) in diameter and are carried in loose panicles along hairy stems. The foliage is semi-evergreen to evergreen depending on the climate, composed of small, velvety, bright green leaves with long petioles, heart-shaped and toothed along the edges.

 

The wall bellflower is a mountain plant, it does not like very hot or dry climates, or hot nights. It thrives in light, not too dry, soil but dislikes stagnant humidity that can cause root rot. It is easy to provide these conditions in a sunny or semi-shaded rockery. It will quickly fill cracks in paving stones and cover old and low walls. Planted in a line, it will create adorable little, neat borders. It is suitable for wild gardens and pot planting, in a light and well-drained substrate. It can also be planted at the base of roses, small deciduous shrubs, or a hedge. In hanging baskets, it will cascade in small luminous curtains: combine it with a pink Diascia, a white-flowered annual euphorbia Diamond Frost or a lemon yellow Coreopsis, for example.

 



 

Campanula portenschlagiana in pictures

Campanula portenschlagiana (Flowering) Flowering
Campanula portenschlagiana (Foliage) Foliage
Campanula portenschlagiana (Plant habit) Plant habit

Flowering

Flower colour blue
Flowering time June to July, September
Inflorescence Solitary
Flower size 2 cm

Foliage

Foliage persistence Semi-evergreen
Foliage colour green

Plant habit

Height at maturity 20 cm
Spread at maturity 30 cm
Growth rate normal

Botanical data

Genus

Campanula

Species

portenschlagiana

Family

Campanulaceae

Other common names

Wall Bellflower

Origin

Central Europe

Product reference800472

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Planting and care

Campanula porscharskyana likes light, moist soils, but dislikes stagnant water that can cause the roots to rot. It needs well-drained soil, even limestone, but still slightly moist to thrive. Plant it in non-scorching sun, or partial shade, sheltered from strong winds that dry it out. This mountain plant does not like hot climates or nights where the temperature remains high. It develops well during hot days of a moderate summer tempered by short nights. Its spread can be easily controlled by cutting the creeping stems. Clean the foliage at the end of flowering and in spring. In pots, regularly provide organic fertilizer to support flowering.

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Planting period

Best planting time March, October
Recommended planting time February to May, September to November

Intended location

Suitable for Meadow, Rockery, Shaded rockery, Woodland edge
Type of use Edge of border, Container, Slope
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Planting density 7 per m2
Exposure Sun, Partial shade
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, well-drained

Care

Pruning No pruning necessary
Disease resistance Very good
Overwinter Can be left in the ground
4,3/5

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