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Campanula carpatica Mini Marvels Midnight

Campanula carpatica Mini Marvels Midnight
Tussock Bellflower

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This Carpathian campanula forms a very compact cushion 15 to 20 cm high and 25 to 30 cm wide. From late spring to late summer, it is covered with a multitude of deep violet bell-shaped flowers, above a dense, semi-evergreen dark green foliage. A hardy perennial in well-drained soil, it enjoys a sunny position in soil that is not too dry in summer, even lime-rich. It is an excellent plant for borders, rockeries, walls, and flowering pots.
Flower size
3 cm
Height at maturity
15 cm
Spread at maturity
30 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time February to April, September to November
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Flowering time June to September
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Description

Campanula carpatica Mini Marvels™ ‘Midnight’, a small Carpathian bellflower that is perennial and carpet-forming, has been selected for its long, deep violet flowering and particularly compact growth. Its bell-shaped flowers follow on from May-June until the end of summer and almost completely cover the foliage. Perfectly hardy and easy to grow, it is a reliable choice for borders, rock gardens and containers.

This variety belongs to the Campanulaceae family. The species Campanula carpatica, commonly called Carpathian bellflower, is a herbaceous perennial native to the Carpathian Mountains in central and eastern Europe (Czech Republic-Slovakia, Romania and Ukraine), where it colonises limestone scree, cliffs and stony meadows at medium and high altitudes.
The cultivar Mini Marvels™ ‘Midnight’ is a horticultural selection from the American nursery Walters Gardens, distributed in the Proven Winners range from 2025. It is part of the MINI MARVELS™ series, which brings together several Carpathian bellflowers that are particularly compact, 15 to 20 cm tall : ‘Midnight’ bears very deep purple flowers.
The plant develops a cushion-shaped clump. Its leaves are heart-shaped to rounded, finely toothed, 2 to 4 cm long, bright green to dark green and slightly glossy. In temperate climates, the foliage is semi-evergreen: it remains present throughout winter in regions with mild winters. The fine flowering stems are tightly packed together; they carry bell-shaped flowers, 2-3 cm wide, facing upwards.
Mini Marvels™ ‘Midnight’ grows quickly, reaching its mature size within two to three seasons. It is very hardy, withstanding temperatures well below –20 °C in well-drained soil, but doesn't like stagnant moisture in winter.

Campanula carpatica Mini Marvels™ ‘Midnight’ is an alpine plant that dislikes both very hot climates and excessively dry summers. Above all, it is an excellent plant for rock gardens and borders. It will quickly fill gaps in paving or an old wall, as well as the tops of low walls. This small plant forms a lovely groundcover at the base of roses and other shrubs, provided it is exposed to the sun. It also grows very well in troughs or pots. To accompany it, consider other rock garden perennials: Phlox subulata ‘Scarlet Flame’, blue fescue ‘Elijah Blue’ and Campanula carpatica ‘Clips’ white. They create durable, easy-care carpets.

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Campanulas: planting, growing and care
Family sheet
by Alexandra 16 min.
Campanulas: planting, growing and care
Read article

Flowering

Flower colour violet
Flowering time June to September
Inflorescence Cyme
Flower size 3 cm

Foliage

Foliage persistence Semi-evergreen
Foliage colour green

Plant habit

Height at maturity 15 cm
Spread at maturity 30 cm
Growth rate fast

Botanical data

Genus

Campanula

Species

carpatica

Cultivar

Mini Marvels Midnight

Family

Campanulaceae

Other common names

Tussock Bellflower

Botanical synonyms

Campanula cordifolia, Campanula dasycarpa, Campanula oreophila, Neocodon carpaticus

Origin

Cultivar or hybrid

Product reference25648

Planting and care

Campanula carpatica Mini Marvels Midnight enjoys moist to not-too-dry soil, light, even lime-bearing and stony, but dislikes waterlogging, which rots its roots. It requires perfectly drained but slightly moist soil to thrive. Plant it in non-scorching sun or partial shade, sheltered from strong winds which dry it out. This alpine plant does not appreciate either very hot climates or very dry summers. Watch out for attacks from slugs and snails in spring. They can destroy a young plant that is not yet well established. Use non-toxic baits... or else adopt toads, which are fond of slugs and snails!

Planting period

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

Intended location

Suitable for Meadow, 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 Amateur
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 Moist soil Well-draining

Care

Pruning instructions Remove dead flowers regularly.
Pruning Pruning recommended once a year
Pruning time June to August
Disease resistance Very good
Overwinter Can be left in the ground

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