Overview
Delphinium 'Kennington Calypso' is a clump-forming, upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with divided green leaves foliage. Delphinium 'Kennington Calypso' 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 'Kennington Calypso' is a herbaceous perennial cultivar of the Delphinium genus, known for its clump-forming, upright habit and divided green leaves. Like other Delphiniums, it produces prominent bowl-shaped flowers arranged in spikes, making it suitable for beds, borders, and cut flowers. This cultivar thrives in fertile, moist but well-drained loam soil with a neutral pH, requiring full sun and a sheltered position. It is hardy to UK zone H5 and is best propagated by basal cuttings in early spring, with flowering interest in spring and summer.
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 'Kennington Calypso' 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 'Kennington Calypso'
- 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 'Kennington Calypso'?
Delphinium 'Kennington Calypso' prefers full sun. It suits sheltered positions.
What soil does Delphinium 'Kennington Calypso' need?
Delphinium 'Kennington Calypso' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Delphinium 'Kennington Calypso' hardy in the UK?
Delphinium 'Kennington Calypso' 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 'Kennington Calypso'?
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'