Overview
Polygonatum odoratum 'Koryu' is a clump forming, spreading branched, bushy herbaceous perennial in the genus Polygonatum, part of the Asparagaceae family, with deciduous foliage. Polygonatum odoratum 'Koryu' grows best in full shade, partial shade and full sun, and tolerates most soils and any pH. Its UK hardiness is rated H7. Suggested uses include flower borders and beds, underplanting of roses and shrubs, cottage and informal garden and city and courtyard gardens.
About
Polygonatum odoratum 'Koryu' is a cultivar of the Polygonatum genus, which consists of rhizomatous herbaceous perennials with upright or arching stems and shiny, elliptical leaves. This deciduous plant forms clumps with a spreading, branched, and bushy habit. It thrives in a range of light conditions from full shade to full sun and prefers fertile, moist but well-drained soil, tolerating various soil types and pH levels. Suitable for sheltered spots, it is hardy to UK zone H7 and is ideal for flower borders, underplanting roses and shrubs, and informal or courtyard gardens, offering interest in spring and summer.
Growing conditions
Best soil and position for Polygonatum
- Sunlight
- Full shade, Partial shade, Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- North-facing, South-facing, East-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H7
Plant details
Polygonatum odoratum 'Koryu' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming, Spreading branched, Bushy
- Foliage
- Deciduous
- Suggested uses
- Flower borders and beds, Underplanting of roses and shrubs, Cottage and informal garden, City and courtyard gardens
Care notes
Pruning and caring for Polygonatum odoratum 'Koryu'
- Propagation
- Division in spring
- Pest resistance
- Slugs, Solomon's seal sawfly
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Polygonatum odoratum 'Koryu'?
Polygonatum odoratum 'Koryu' prefers full shade, partial shade and full sun. It suits sheltered positions.
What soil does Polygonatum odoratum 'Koryu' need?
Polygonatum odoratum 'Koryu' 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 Polygonatum odoratum 'Koryu' hardy in the UK?
Polygonatum odoratum 'Koryu' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Polygonatum odoratum 'Koryu'?
Division in spring.
More in the Polygonatum genus
- Polygonatum commutatum
- Polygonatum odoratumangular Solomon's seal
- Polygonatum odoratum 'Angel Wing'angular Solomon's seal 'Angel Wing'
- Polygonatum odoratum 'Dai Koga' (v)
- Polygonatum odoratum 'Georgia'
- Polygonatum odoratum 'Shiro-kujaku' (v)
- Polygonatum roseumrosy-flowered Solomon's seal
- Polygonatum verticillatumwhorled Solomon's seal
