Overview
Delphinium 'Centurion Blue' is a clump-forming, upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with divided green leaves foliage. Delphinium 'Centurion Blue' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include beds, borders and cut flowers.
About
Delphinium 'Centurion Blue' is a herbaceous perennial cultivar within the Delphinium genus, known for its clump-forming, upright habit and divided green leaves. This plant produces prominent, bowl-shaped flowers arranged in spikes, typical of Delphiniums. It thrives in fertile, moist but well-drained loam soil with a neutral pH, requiring full sun exposure and shelter from wind, making south, west, or east-facing aspects ideal. Hardy to UK zone H5, it is suitable for beds, borders, and cut flowers, with flowering interest in spring and summer. Cultivation involves staking tall varieties, mulching in spring, and propagation by basal cuttings in early spring.
Growing conditions
Best soil and position for Delphinium
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Delphinium 'Centurion Blue' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump-forming, upright
- Foliage
- Divided green leaves
- Suggested uses
- Beds, borders, cut flowers
Care notes
Pruning and caring for Delphinium 'Centurion Blue'
- Propagation
- Basal cuttings in early spring
- Pest resistance
- Aphids, earwigs, delphinium leaf miner, delphinium moth caterpillars, slugs, snails, caterpillars
- Disease resistance
- Powdery mildews, delphinium black blotch, crown rot, viruses
Frequently asked questions
Where is the best place to plant Delphinium 'Centurion Blue'?
Delphinium 'Centurion Blue' prefers full sun. It suits sheltered positions.
What soil does Delphinium 'Centurion Blue' need?
Delphinium 'Centurion Blue' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Delphinium 'Centurion Blue' hardy in the UK?
Delphinium 'Centurion Blue' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Delphinium 'Centurion Blue'?
Basal cuttings in early spring.
More in the Delphinium genus
- Delphinium 'Blue Bell'
- Delphinium 'Ailsa'
- Delphinium 'Alison Claire'
- Delphinium 'Ambrose Woods'
- Delphinium 'Angela Rowe'
- Delphinium 'Ann Woodfield'
- Delphinium 'Anne Page'
- Delphinium 'Ariel Blue'