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

Browse all Delphinium