Campanula 'Blue Waterfall'

Campanula poscharskyana 'Blue Waterfall': Cascading Colour with Alpine Spirit

Graceful and ground-hugging, Campanula 'Blue Waterfall' spills over walls, rocks, and borders with a cascade of starry, lavender-blue flowers from late spring into midsummer. Its trailing habit and fine, green foliage create a flowing effect that mimics a trickling stream—perfect for alpine gardens, containers, or stone crevices. Heat- and drought-tolerant once established, this easy-care perennial attracts pollinators and offers weeks of soft, cool colour in full sun to partial shade.

Plant Characteristics:

• Height: 10–15 cm
• Spread: 45–60 cm, trailing and spreading freely
• Flower Colour: Lavender-blue
• Flowering Period: Late spring to early summer
• Foliage: Small, toothed, bright green leaves; semi-evergreen
• Sunlight Requirements: Full sun to part shade
• Soil Requirements: Well-drained, average to dry soil; prefers gravelly or sandy conditions

Uses and Benefits: Campanula 'Blue Waterfall' is ideal for rock gardens, wall crevices, sunny slopes, and containers where it can flow over the edge. It creates a softening layer between bolder perennials and stonework, while offering valuable nectar to bees. Easy to grow and deer-resistant, it provides a lush look with minimal water and care.

Companion Plants: Pair with the rosettes and burgundy tones of Sempervivum 'Red Beauty', the silvery foliage of Lamium 'White Nancy', and the golden threads of Sedum rupestre 'Angelina' for a sun-loving, texture-rich combination that thrives in lean soils and full sun.

Care Instructions: Plant in well-drained soil and full sun to partial shade. Water occasionally during dry spells, especially in containers. Shear back lightly after blooming to maintain a neat form and encourage a rebloom. Divide in spring or early fall if clumps become too woody or overcrowded.

History: Derived from the tough and charming Campanula poscharskyana, native to the Balkans, 'Blue Waterfall' was selected for its enhanced flower power and trailing habit. It remains a favourite in alpine and small-space gardens for its effortless beauty and endurance.

Final Thoughts: Flowing with bloom and light on maintenance, Campanula 'Blue Waterfall' brings cool, calming movement to hot, sunny gardens—like a trickle of blue through the rock and stone.