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

Browse all Silene