Overview

Delphinium 'Centurion White' (Centurion Series) is a columnar upright herbaceous perennial in the genus Delphinium, part of the Ranunculaceae family, with deciduous foliage. It typically grows around 1.5-2.5 metres tall and 0.5-1 metres wide, reaching full size in around 2-5 years. Delphinium 'Centurion White' (Centurion Series) grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include borders and cut flowers.

About

Delphinium 'Centurion White' is a herbaceous perennial cultivar of the Delphinium genus, known for its columnar upright habit and deciduous foliage. Growing to a height of 1.5 to 2.5 metres with a spread of 0.5 to 1 metre, it thrives in full sun and sheltered positions with fertile, well-drained soil. This cultivar produces prominent, bowl-shaped flowers arranged in spikes, typical of Delphinium, and is suited to cottage and informal gardens. It requires staking and regular feeding during the growing season, with deadheading and cutting back after flowering encouraging a second flush in autumn. Caution is advised as it is harmful if eaten.

About the genus

Delphinium is a genus of about 300 species of annual and perennial flowering plants in the family Ranunculaceae, native throughout the Northern Hemisphere and also on the high mountains of tropical Africa. The genus was erected by Carl Linnaeus.

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 'Centurion White' (Centurion Series) size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Columnar upright
Foliage
Deciduous
Height
1.5-2.5 metres
Spread
0.5-1 metres
Time to full height
2-5 years
Suggested uses
Borders, cut flowers

Care notes

Pruning and caring for Delphinium 'Centurion White' (Centurion Series)

Propagation
Seeds, division
Pest resistance
Susceptible to slugs
Disease resistance
Susceptible to powdery mildew

Frequently asked questions

Where is the best place to plant Delphinium 'Centurion White' (Centurion Series)?

Delphinium 'Centurion White' (Centurion Series) prefers full sun. It suits sheltered positions.

What soil does Delphinium 'Centurion White' (Centurion Series) need?

Delphinium 'Centurion White' (Centurion Series) 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.

How big does Delphinium 'Centurion White' (Centurion Series) grow?

Delphinium 'Centurion White' (Centurion Series) reaches a height of 1.5-2.5 metres and a spread of 0.5-1 metres. It takes around 2-5 years to reach full size.

Is Delphinium 'Centurion White' (Centurion Series) hardy in the UK?

Delphinium 'Centurion White' (Centurion Series) 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 White' (Centurion Series)?

Seeds, division.

More in the Delphinium genus

Browse all Delphinium