Description
Sedum ‘Black Night’ (Black Night Stonecrop)
Quick Facts
- Common Name: Black Night Stonecrop, Dark-leaved Sedum
- Botanical Name: Sedum telephium ‘Black Night’
- Plant Type: Hardy perennial succulent
- Mature Height: 40-50cm
- Mature Spread: 30-40cm
- Flowering Period: August to October
- Flower Colour: Deep burgundy-red clusters
- Foliage: Dark purple-black, fleshy leaves
- Hardiness: RHS H7 (fully hardy)
- Soil Requirements: Well-drained, poor to moderately fertile soil
- Aspect: Full sun to partial shade
- Maintenance: Low
Description
Like a midnight jewel nestled in your Irish garden, Sedum ‘Black Night’ brings dramatic elegance with its striking dark purple-black foliage that seems to absorb light itself. This remarkable stonecrop thrives in our changeable climate, offering year-round architectural interest that transforms ordinary borders into something truly extraordinary.
Throughout summer, the succulent leaves create a stunning backdrop, their deep colouring intensifying in full sun. Come late summer, clusters of rich burgundy-red flowers crown each stem, creating a spectacular contrast against the dark foliage whilst attracting clouds of butterflies and beneficial insects to your garden sanctuary.
Named for its distinctive midnight-dark leaves, this hardy perennial embodies resilience and beauty in equal measure. Perfectly suited to Irish conditions, it tolerates both drought and our unpredictable weather with remarkable grace, making it an invaluable addition to cottage gardens, contemporary borders, and wildlife-friendly spaces alike.
Pair ‘Black Night’ with silvery artemisia, golden rudbeckia, or pale pink asters for breath-taking colour combinations. It’s equally stunning in gravel gardens, rock gardens, or as edging for pathways, bringing sophisticated drama to any Irish garden whilst requiring minimal care once established.
Caragh’s Garden Notebook
Plant spacing 30-40cm apart in well-drained soil. Sedum ‘Black Night’ actually prefers poor to moderately fertile conditions – rich soil can cause weak, floppy growth. If your soil is heavy clay, improve drainage by adding grit or plant in raised beds.
Excellent for container growing – use a gritty, well-draining compost mix and ensure pots have adequate drainage holes. Water sparingly, allowing soil to dry between waterings. In containers, protect from excessive winter wet by moving to a sheltered spot.
Thrives in pH 6.0-7.5 but tolerates a wide range. Once established, this drought-tolerant beauty requires minimal watering except during prolonged dry spells. Deadhead spent flowers to encourage a second flush, or leave seed heads for winter interest and wildlife.
Cut back to ground level in late winter or early spring before new growth emerges. Divide clumps every 3-4 years in spring to maintain vigour – simply lift, divide, and replant sections with roots attached. The dark foliage colour is most intense in full sun but will tolerate partial shade in Irish gardens.