Overview
Delphinium 'Kings Blue Arrow' is a columnar upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with deciduous foliage. Delphinium 'Kings Blue Arrow' grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include cottage and informal garden and wildlife gardens.
About
Delphinium 'Kings Blue Arrow' is a herbaceous perennial cultivar of the Delphinium genus, known for its columnar upright habit and deciduous foliage. Like other Delphiniums, it features prominent, bowl-shaped flowers arranged in spikes, thriving in full sun with shelter from the wind. It prefers fertile, moist but well-drained soil ranging from chalk to clay and can tolerate a range of soil pH levels. Hardy to UK zone H5, this cultivar is suitable for cottage and informal gardens as well as wildlife gardens, with interest in spring and summer.
Growing conditions
Best soil and position for Delphinium
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Delphinium 'Kings Blue Arrow' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Columnar upright
- Foliage
- Deciduous
- Suggested uses
- Cottage and informal garden, Wildlife gardens
Care notes
Pruning and caring for Delphinium 'Kings Blue Arrow'
- Propagation
- Propagate by taking pencil thick basal cuttings in early spring or propagate by seed in spring or autumn (cultivars will not come true)
- Pest resistance
- May be susceptible to aphids, earwigs, delphinium leaf miner, delphinium moth caterpillars, slugs, snails and caterpillars
- Disease resistance
- May be susceptible to powdery mildews, delphinium black blotch, crown rot and viruses
Frequently asked questions
Where is the best place to plant Delphinium 'Kings Blue Arrow'?
Delphinium 'Kings Blue Arrow' prefers full sun. It suits sheltered positions.
What soil does Delphinium 'Kings Blue Arrow' need?
Delphinium 'Kings Blue Arrow' 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 to well-drained.
Is Delphinium 'Kings Blue Arrow' hardy in the UK?
Delphinium 'Kings Blue Arrow' 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 'Kings Blue Arrow'?
Propagate by taking pencil thick basal cuttings in early spring or propagate by seed in spring or autumn (cultivars will not come true).
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'