Overview
Silene keiskei is a clump forming herbaceous perennial in the genus Silene, part of the Caryophyllaceae family, with deciduous foliage. Silene keiskei grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H6. Suggested uses include cottage and informal garden, wildflower meadow, wildlife gardens and flower borders and beds.
About
Silene keiskei, commonly known as Keisuke campion, is a clump-forming deciduous perennial within the Silene genus, which includes annuals, biennials, and perennials with opposite, toothless leaves and typically notched five-petalled flowers. This cultivar thrives in full sun on south-facing, exposed sites with well-drained, neutral loam soil. Hardy to UK zone H6, it is best planted after the last frost in fertile soil. Silene keiskei is suitable for cottage and informal gardens, wildflower meadows, wildlife gardens, and flower borders, offering interest during the winter season.
Growing conditions
Best soil and position for Silene
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Exposed
- UK hardiness
- H6
Plant details
Silene keiskei size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Suggested uses
- Cottage and informal garden, Wildflower meadow, Wildlife gardens, Flower borders and beds
Care notes
Pruning and caring for Silene keiskei
- Propagation
- Seed
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Silene keiskei?
Silene keiskei prefers full sun. It suits exposed positions.
What soil does Silene keiskei need?
Silene keiskei grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Silene keiskei hardy in the UK?
Silene keiskei has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.
How do I propagate Silene keiskei?
Seed.
More in the Silene genus
- Lychnis chalcedonica (Hessenhof Form)Maltese Cross

- Lychnis coronaria

- Lychnis coronaria 'Alba'Rose Campion

- Silene dioica 'Clifford Moor' (v)
- Silene dioica 'Rosea Plena' (d)
- Silene firma

- Silene keiskei var. minor

- Silene schafta 'Persian Carpet'
