Overview
Polemonium yezoense 'Midnight Rain' is a bushy, clump forming, spreading herbaceous perennial in the genus Polemonium, part of the Polemoniaceae family, with deciduous foliage. Polemonium yezoense 'Midnight Rain' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H7. Suggested uses include cottage and informal garden, patio and container plants and flower borders and beds.
About
Polemonium yezoense 'Midnight Rain' is a herbaceous perennial cultivar of the Polemonium genus, known for its bushy, clump-forming, and spreading habit. Like other Polemonium species, it features pinnate leaves and produces clusters of tubular or bell-shaped flowers. This deciduous plant thrives in full sun or partial shade, favouring fertile, moist but well-drained soils across a range of types and pH levels. Hardy to UK zone H7, it is suitable for cottage gardens, flower borders, patios, and containers, offering interest throughout summer and autumn.
Growing conditions
Best soil and position for Polemonium
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
Polemonium yezoense 'Midnight Rain' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Bushy, Clump forming, Spreading
- Foliage
- Deciduous
- Suggested uses
- Cottage and informal garden, Patio and container plants, Flower borders and beds
Care notes
Pruning and caring for Polemonium yezoense 'Midnight Rain'
- Propagation
- Division in spring, Seed sown in containers in a cold frame in autumn or spring
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to powdery mildews
Frequently asked questions
Where is the best place to plant Polemonium yezoense 'Midnight Rain'?
Polemonium yezoense 'Midnight Rain' prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Polemonium yezoense 'Midnight Rain' need?
Polemonium yezoense 'Midnight Rain' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
Is Polemonium yezoense 'Midnight Rain' hardy in the UK?
Polemonium yezoense 'Midnight Rain' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Polemonium yezoense 'Midnight Rain'?
Division in spring, Seed sown in containers in a cold frame in autumn or spring.
